diff --git a/app/Http/Controllers/V1/Admin/General/BootstrapController.php b/app/Http/Controllers/V1/Admin/General/BootstrapController.php
index 9f56fbb5..38965275 100644
--- a/app/Http/Controllers/V1/Admin/General/BootstrapController.php
+++ b/app/Http/Controllers/V1/Admin/General/BootstrapController.php
@@ -58,6 +58,7 @@ class BootstrapController extends Controller
             'login_page_description',
             'admin_page_title',
             'copyright_text',
+            'save_pdf_to_disk',
         ]);
 
         return response()->json([
diff --git a/app/Http/Controllers/V1/Admin/Settings/CompanyMailConfigurationController.php b/app/Http/Controllers/V1/Admin/Settings/CompanyMailConfigurationController.php
new file mode 100644
index 00000000..b03bee95
--- /dev/null
+++ b/app/Http/Controllers/V1/Admin/Settings/CompanyMailConfigurationController.php
@@ -0,0 +1,145 @@
+<?php
+
+namespace App\Http\Controllers\V1\Admin\Settings;
+
+use App\Http\Controllers\Controller;
+use App\Mail\TestMail;
+use App\Models\CompanySetting;
+use App\Services\CompanyMailConfigService;
+use Illuminate\Http\JsonResponse;
+use Illuminate\Http\Request;
+use Mail;
+
+class CompanyMailConfigurationController extends Controller
+{
+    public function getMailConfig(Request $request): JsonResponse
+    {
+        $companyId = $request->header('company');
+
+        $useCustom = CompanySetting::getSetting('use_custom_mail_config', $companyId) ?? 'NO';
+        $driver = CompanySetting::getSetting('company_mail_driver', $companyId) ?? '';
+
+        $data = [
+            'use_custom_mail_config' => $useCustom,
+            'mail_driver' => $driver,
+            'from_name' => CompanySetting::getSetting('company_from_name', $companyId) ?? '',
+            'from_mail' => CompanySetting::getSetting('company_from_mail', $companyId) ?? '',
+        ];
+
+        switch ($driver) {
+            case 'smtp':
+                $data = array_merge($data, [
+                    'mail_host' => CompanySetting::getSetting('company_mail_host', $companyId) ?? '',
+                    'mail_port' => CompanySetting::getSetting('company_mail_port', $companyId) ?? '',
+                    'mail_username' => CompanySetting::getSetting('company_mail_username', $companyId) ?? '',
+                    'mail_password' => CompanySetting::getSetting('company_mail_password', $companyId) ?? '',
+                    'mail_encryption' => CompanySetting::getSetting('company_mail_encryption', $companyId) ?? 'none',
+                    'mail_scheme' => CompanySetting::getSetting('company_mail_scheme', $companyId) ?? '',
+                    'mail_url' => CompanySetting::getSetting('company_mail_url', $companyId) ?? '',
+                    'mail_timeout' => CompanySetting::getSetting('company_mail_timeout', $companyId) ?? '',
+                    'mail_local_domain' => CompanySetting::getSetting('company_mail_local_domain', $companyId) ?? '',
+                ]);
+                break;
+
+            case 'mailgun':
+                $data = array_merge($data, [
+                    'mail_mailgun_domain' => CompanySetting::getSetting('company_mail_mailgun_domain', $companyId) ?? '',
+                    'mail_mailgun_secret' => CompanySetting::getSetting('company_mail_mailgun_secret', $companyId) ?? '',
+                    'mail_mailgun_endpoint' => CompanySetting::getSetting('company_mail_mailgun_endpoint', $companyId) ?? 'api.mailgun.net',
+                    'mail_mailgun_scheme' => CompanySetting::getSetting('company_mail_mailgun_scheme', $companyId) ?? 'https',
+                ]);
+                break;
+
+            case 'ses':
+                $data = array_merge($data, [
+                    'mail_ses_key' => CompanySetting::getSetting('company_mail_ses_key', $companyId) ?? '',
+                    'mail_ses_secret' => CompanySetting::getSetting('company_mail_ses_secret', $companyId) ?? '',
+                    'mail_ses_region' => CompanySetting::getSetting('company_mail_ses_region', $companyId) ?? 'us-east-1',
+                ]);
+                break;
+
+            case 'sendmail':
+                $data = array_merge($data, [
+                    'mail_sendmail_path' => CompanySetting::getSetting('company_mail_sendmail_path', $companyId) ?? '/usr/sbin/sendmail -bs -i',
+                ]);
+                break;
+        }
+
+        return response()->json($data);
+    }
+
+    public function saveMailConfig(Request $request): JsonResponse
+    {
+        $this->authorize('owner only');
+
+        $companyId = $request->header('company');
+        $driver = $request->get('mail_driver', '');
+
+        $settings = [
+            'use_custom_mail_config' => $request->get('use_custom_mail_config', 'NO'),
+            'company_mail_driver' => $driver,
+            'company_from_name' => $request->get('from_name', ''),
+            'company_from_mail' => $request->get('from_mail', ''),
+        ];
+
+        switch ($driver) {
+            case 'smtp':
+                $settings = array_merge($settings, [
+                    'company_mail_host' => $request->get('mail_host', ''),
+                    'company_mail_port' => $request->get('mail_port', ''),
+                    'company_mail_username' => $request->get('mail_username', ''),
+                    'company_mail_password' => $request->get('mail_password', ''),
+                    'company_mail_encryption' => $request->get('mail_encryption', 'none'),
+                    'company_mail_scheme' => $request->get('mail_scheme', ''),
+                    'company_mail_url' => $request->get('mail_url', ''),
+                    'company_mail_timeout' => $request->get('mail_timeout', ''),
+                    'company_mail_local_domain' => $request->get('mail_local_domain', ''),
+                ]);
+                break;
+
+            case 'mailgun':
+                $settings = array_merge($settings, [
+                    'company_mail_mailgun_domain' => $request->get('mail_mailgun_domain', ''),
+                    'company_mail_mailgun_secret' => $request->get('mail_mailgun_secret', ''),
+                    'company_mail_mailgun_endpoint' => $request->get('mail_mailgun_endpoint', 'api.mailgun.net'),
+                    'company_mail_mailgun_scheme' => $request->get('mail_mailgun_scheme', 'https'),
+                ]);
+                break;
+
+            case 'ses':
+                $settings = array_merge($settings, [
+                    'company_mail_ses_key' => $request->get('mail_ses_key', ''),
+                    'company_mail_ses_secret' => $request->get('mail_ses_secret', ''),
+                    'company_mail_ses_region' => $request->get('mail_ses_region', 'us-east-1'),
+                ]);
+                break;
+
+            case 'sendmail':
+                $settings = array_merge($settings, [
+                    'company_mail_sendmail_path' => $request->get('mail_sendmail_path', '/usr/sbin/sendmail -bs -i'),
+                ]);
+                break;
+        }
+
+        CompanySetting::setSettings($settings, $companyId);
+
+        return response()->json(['success' => true]);
+    }
+
+    public function testMailConfig(Request $request): JsonResponse
+    {
+        $this->authorize('owner only');
+
+        $this->validate($request, [
+            'to' => 'required|email',
+            'subject' => 'required',
+            'message' => 'required',
+        ]);
+
+        CompanyMailConfigService::apply($request->header('company'));
+
+        Mail::to($request->to)->send(new TestMail($request->subject, $request->message));
+
+        return response()->json(['success' => true]);
+    }
+}
diff --git a/app/Http/Controllers/V1/SuperAdmin/CompaniesController.php b/app/Http/Controllers/V1/SuperAdmin/CompaniesController.php
new file mode 100644
index 00000000..fc301aab
--- /dev/null
+++ b/app/Http/Controllers/V1/SuperAdmin/CompaniesController.php
@@ -0,0 +1,57 @@
+<?php
+
+namespace App\Http\Controllers\V1\SuperAdmin;
+
+use App\Http\Controllers\Controller;
+use App\Http\Requests\AdminCompanyUpdateRequest;
+use App\Http\Resources\CompanyResource;
+use App\Models\Company;
+use Illuminate\Http\Request;
+
+class CompaniesController extends Controller
+{
+    public function index(Request $request)
+    {
+        $companies = Company::query()
+            ->with(['owner', 'address'])
+            ->when($request->has('search'), function ($query) use ($request) {
+                $query->where('name', 'like', '%'.$request->search.'%');
+            })
+            ->when($request->has('orderByField') && $request->has('orderBy'), function ($query) use ($request) {
+                $query->orderBy($request->orderByField, $request->orderBy);
+            }, function ($query) {
+                $query->orderBy('name', 'asc');
+            })
+            ->paginate($request->input('limit', 10));
+
+        return CompanyResource::collection($companies);
+    }
+
+    public function show(Company $company)
+    {
+        $company->load(['owner', 'address']);
+
+        return new CompanyResource($company);
+    }
+
+    public function update(AdminCompanyUpdateRequest $request, Company $company)
+    {
+        $company->update([
+            'name' => $request->name,
+            'vat_id' => $request->vat_id,
+            'tax_id' => $request->tax_id,
+            'owner_id' => $request->owner_id,
+        ]);
+
+        if ($request->has('address')) {
+            $company->address()->updateOrCreate(
+                ['company_id' => $company->id],
+                $request->address,
+            );
+        }
+
+        $company->load(['owner', 'address']);
+
+        return new CompanyResource($company);
+    }
+}
diff --git a/app/Http/Controllers/V1/SuperAdmin/UsersController.php b/app/Http/Controllers/V1/SuperAdmin/UsersController.php
new file mode 100644
index 00000000..57b122e6
--- /dev/null
+++ b/app/Http/Controllers/V1/SuperAdmin/UsersController.php
@@ -0,0 +1,101 @@
+<?php
+
+namespace App\Http\Controllers\V1\SuperAdmin;
+
+use App\Http\Controllers\Controller;
+use App\Http\Requests\AdminUserUpdateRequest;
+use App\Http\Resources\UserResource;
+use App\Models\ImpersonationLog;
+use App\Models\User;
+use Illuminate\Http\Request;
+use Laravel\Sanctum\PersonalAccessToken;
+
+class UsersController extends Controller
+{
+    public function index(Request $request)
+    {
+        $limit = $request->has('limit') ? $request->limit : 10;
+
+        $users = User::with('companies')
+            ->applyFilters($request->all())
+            ->latest()
+            ->paginate($limit);
+
+        return UserResource::collection($users);
+    }
+
+    public function show(User $user)
+    {
+        $user->load('companies');
+
+        return new UserResource($user);
+    }
+
+    public function update(AdminUserUpdateRequest $request, User $user)
+    {
+        $data = $request->only(['name', 'email', 'phone']);
+
+        if ($request->filled('password')) {
+            $data['password'] = $request->password;
+        }
+
+        $user->update($data);
+
+        return new UserResource($user);
+    }
+
+    public function impersonate(Request $request, User $user)
+    {
+        $admin = $request->user();
+
+        if ($admin->id === $user->id) {
+            return response()->json([
+                'error' => 'cannot_impersonate_self',
+                'message' => 'You cannot impersonate yourself.',
+            ], 422);
+        }
+
+        $token = $user->createToken(
+            'impersonation-by-'.$admin->id,
+            ['*'],
+            now()->addHours(2),
+        );
+
+        $log = ImpersonationLog::create([
+            'admin_id' => $admin->id,
+            'user_id' => $user->id,
+            'ip_address' => $request->ip(),
+            'token_id' => $token->accessToken->id,
+        ]);
+
+        return response()->json([
+            'token' => $token->plainTextToken,
+            'impersonation_log_id' => $log->id,
+            'user' => new UserResource($user),
+        ]);
+    }
+
+    public function stopImpersonating(Request $request)
+    {
+        $token = $request->user()->currentAccessToken();
+
+        if ($token instanceof PersonalAccessToken && str_starts_with($token->name, 'impersonation-by-')) {
+            $log = ImpersonationLog::where('token_id', $token->id)
+                ->whereNull('stopped_at')
+                ->first();
+
+            if ($log) {
+                $log->update(['stopped_at' => now()]);
+            }
+
+            $token->delete();
+
+            return response()->json(['success' => true]);
+        }
+
+        return response()->json([
+            'error' => 'not_impersonating',
+            'message' => 'No active impersonation session.',
+        ], 422);
+    }
+}
diff --git a/app/Http/Middleware/SuperAdminMiddleware.php b/app/Http/Middleware/SuperAdminMiddleware.php
new file mode 100644
index 00000000..765448e7
--- /dev/null
+++ b/app/Http/Middleware/SuperAdminMiddleware.php
@@ -0,0 +1,20 @@
+<?php
+
+namespace App\Http\Middleware;
+
+use Auth;
+use Closure;
+use Illuminate\Http\Request;
+use Symfony\Component\HttpFoundation\Response;
+
+class SuperAdminMiddleware
+{
+    public function handle(Request $request, Closure $next, $guard = null): Response
+    {
+        if (Auth::guard($guard)->guest() || ! Auth::user()->isSuperAdmin()) {
+            return response()->json(['error' => 'unauthorized'], 403);
+        }
+
+        return $next($request);
+    }
+}
diff --git a/app/Http/Requests/AdminCompanyUpdateRequest.php b/app/Http/Requests/AdminCompanyUpdateRequest.php
new file mode 100644
index 00000000..887e332e
--- /dev/null
+++ b/app/Http/Requests/AdminCompanyUpdateRequest.php
@@ -0,0 +1,45 @@
+<?php
+
+namespace App\Http\Requests;
+
+use Illuminate\Foundation\Http\FormRequest;
+use Illuminate\Validation\Rule;
+
+class AdminCompanyUpdateRequest extends FormRequest
+{
+    public function authorize(): bool
+    {
+        return $this->user()->isSuperAdmin();
+    }
+
+    public function rules(): array
+    {
+        return [
+            'name' => [
+                'required',
+                'string',
+                Rule::unique('companies')->ignore($this->route('company')),
+            ],
+            'owner_id' => [
+                'required',
+                'exists:users,id',
+            ],
+            'vat_id' => [
+                'nullable',
+                'string',
+            ],
+            'tax_id' => [
+                'nullable',
+                'string',
+            ],
+            'address.name' => ['nullable', 'string'],
+            'address.address_street_1' => ['nullable', 'string'],
+            'address.address_street_2' => ['nullable', 'string'],
+            'address.city' => ['nullable', 'string'],
+            'address.state' => ['nullable', 'string'],
+            'address.country_id' => ['nullable', 'exists:countries,id'],
+            'address.zip' => ['nullable', 'string'],
+            'address.phone' => ['nullable', 'string'],
+        ];
+    }
+}
diff --git a/app/Http/Requests/AdminUserUpdateRequest.php b/app/Http/Requests/AdminUserUpdateRequest.php
new file mode 100644
index 00000000..523c9f6a
--- /dev/null
+++ b/app/Http/Requests/AdminUserUpdateRequest.php
@@ -0,0 +1,28 @@
+<?php
+
+namespace App\Http\Requests;
+
+use Illuminate\Foundation\Http\FormRequest;
+use Illuminate\Validation\Rule;
+
+class AdminUserUpdateRequest extends FormRequest
+{
+    public function authorize(): bool
+    {
+        return $this->user()->isSuperAdmin();
+    }
+
+    public function rules(): array
+    {
+        return [
+            'name' => ['required', 'string'],
+            'email' => [
+                'required',
+                'email',
+                Rule::unique('users')->ignore($this->route('user')),
+            ],
+            'phone' => ['nullable', 'string'],
+            'password' => ['nullable', 'string', 'min:8'],
+        ];
+    }
+}
diff --git a/app/Http/Resources/CompanyResource.php b/app/Http/Resources/CompanyResource.php
index 7e518d38..22e442e6 100644
--- a/app/Http/Resources/CompanyResource.php
+++ b/app/Http/Resources/CompanyResource.php
@@ -24,9 +24,14 @@ class CompanyResource extends JsonResource
             'unique_hash' => $this->unique_hash,
             'owner_id' => $this->owner_id,
             'slug' => $this->slug,
+            'created_at' => $this->created_at,
+            'updated_at' => $this->updated_at,
             'address' => $this->when($this->address()->exists(), function () {
                 return new AddressResource($this->address);
             }),
+            'owner' => $this->when($this->relationLoaded('owner'), function () {
+                return new UserResource($this->owner);
+            }),
             'roles' => RoleResource::collection($this->roles),
         ];
     }
diff --git a/app/Http/Resources/UserResource.php b/app/Http/Resources/UserResource.php
index 691ea988..c12e5ff7 100644
--- a/app/Http/Resources/UserResource.php
+++ b/app/Http/Resources/UserResource.php
@@ -32,6 +32,7 @@ class UserResource extends JsonResource
             'updated_at' => $this->updated_at,
             'avatar' => $this->avatar,
             'is_owner' => $this->isOwner(),
+            'is_super_admin' => $this->isSuperAdmin(),
             'roles' => $this->roles,
             'formatted_created_at' => $this->formattedCreatedAt,
             'currency' => $this->when($this->currency()->exists(), function () {
diff --git a/app/Models/Estimate.php b/app/Models/Estimate.php
index cafacfc1..847063bf 100644
--- a/app/Models/Estimate.php
+++ b/app/Models/Estimate.php
@@ -6,6 +6,7 @@ use App;
 use App\Facades\Hashids;
 use App\Facades\PDF;
 use App\Mail\SendEstimateMail;
+use App\Services\CompanyMailConfigService;
 use App\Services\SerialNumberFormatter;
 use App\Space\PdfTemplateUtils;
 use App\Support\PdfHtmlSanitizer;
@@ -370,6 +371,8 @@ class Estimate extends Model implements HasMedia
     {
         $data = $this->sendEstimateData($data);
 
+        CompanyMailConfigService::apply($this->company_id);
+
         if ($this->status == Estimate::STATUS_DRAFT) {
             $this->status = Estimate::STATUS_SENT;
             $this->save();
diff --git a/app/Models/ImpersonationLog.php b/app/Models/ImpersonationLog.php
new file mode 100644
index 00000000..2694e614
--- /dev/null
+++ b/app/Models/ImpersonationLog.php
@@ -0,0 +1,25 @@
+<?php
+
+namespace App\Models;
+
+use Illuminate\Database\Eloquent\Model;
+use Illuminate\Database\Eloquent\Relations\BelongsTo;
+
+class ImpersonationLog extends Model
+{
+    protected $guarded = ['id'];
+
+    protected $casts = [
+        'stopped_at' => 'datetime',
+    ];
+
+    public function admin(): BelongsTo
+    {
+        return $this->belongsTo(User::class, 'admin_id');
+    }
+
+    public function user(): BelongsTo
+    {
+        return $this->belongsTo(User::class, 'user_id');
+    }
+}
diff --git a/app/Models/Invoice.php b/app/Models/Invoice.php
index a56e035b..b8fa632f 100644
--- a/app/Models/Invoice.php
+++ b/app/Models/Invoice.php
@@ -6,6 +6,7 @@ use App;
 use App\Facades\Hashids;
 use App\Facades\PDF;
 use App\Mail\SendInvoiceMail;
+use App\Services\CompanyMailConfigService;
 use App\Services\SerialNumberFormatter;
 use App\Space\PdfTemplateUtils;
 use App\Support\PdfHtmlSanitizer;
@@ -477,6 +478,8 @@ class Invoice extends Model implements HasMedia
     {
         $data = $this->sendInvoiceData($data);
 
+        CompanyMailConfigService::apply($this->company_id);
+
         $mail = \Mail::to($data['to']);
         if (! empty($data['cc'])) {
             $mail->cc($data['cc']);
diff --git a/app/Models/Payment.php b/app/Models/Payment.php
index e3b3193f..8b0f06a9 100644
--- a/app/Models/Payment.php
+++ b/app/Models/Payment.php
@@ -5,6 +5,7 @@ namespace App\Models;
 use App\Facades\Hashids;
 use App\Jobs\GeneratePaymentPdfJob;
 use App\Mail\SendPaymentMail;
+use App\Services\CompanyMailConfigService;
 use App\Services\SerialNumberFormatter;
 use App\Support\PdfHtmlSanitizer;
 use App\Traits\GeneratesPdfTrait;
@@ -145,6 +146,8 @@ class Payment extends Model implements HasMedia
     {
         $data = $this->sendPaymentData($data);
 
+        CompanyMailConfigService::apply($this->company_id);
+
         $mail = \Mail::to($data['to']);
         if (! empty($data['cc'])) {
             $mail->cc($data['cc']);
diff --git a/app/Models/User.php b/app/Models/User.php
index b5c575cc..62484a2c 100644
--- a/app/Models/User.php
+++ b/app/Models/User.php
@@ -75,6 +75,11 @@ class User extends Authenticatable implements HasMedia
         }
     }
 
+    public function isSuperAdmin(): bool
+    {
+        return $this->role === 'super admin';
+    }
+
     public function isSuperAdminOrAdmin()
     {
         return ($this->role == 'super admin') || ($this->role == 'admin');
@@ -375,6 +380,10 @@ class User extends Authenticatable implements HasMedia
 
     public function checkAccess($data)
     {
+        if (! empty($data->data['super_admin_only']) && $data->data['super_admin_only']) {
+            return $this->isSuperAdmin();
+        }
+
         if ($this->isOwner()) {
             return true;
         }
diff --git a/app/Providers/AppServiceProvider.php b/app/Providers/AppServiceProvider.php
index 4742eb48..487de0c3 100644
--- a/app/Providers/AppServiceProvider.php
+++ b/app/Providers/AppServiceProvider.php
@@ -110,9 +110,11 @@ class AppServiceProvider extends ServiceProvider
             ->data('icon', $data['icon'])
             ->data('name', $data['name'])
             ->data('owner_only', $data['owner_only'])
+            ->data('super_admin_only', $data['super_admin_only'] ?? false)
             ->data('ability', $data['ability'])
             ->data('model', $data['model'])
-            ->data('group', $data['group']);
+            ->data('group', $data['group'])
+            ->data('group_label', $data['group_label'] ?? '');
     }
 
     public function bootAuth()
diff --git a/app/Services/CompanyMailConfigService.php b/app/Services/CompanyMailConfigService.php
new file mode 100644
index 00000000..5831a3ee
--- /dev/null
+++ b/app/Services/CompanyMailConfigService.php
@@ -0,0 +1,99 @@
+<?php
+
+namespace App\Services;
+
+use App\Models\CompanySetting;
+use Illuminate\Support\Facades\Config;
+use Illuminate\Support\Facades\Mail;
+
+class CompanyMailConfigService
+{
+    private static array $mailSettingKeys = [
+        'company_mail_driver',
+        'company_mail_host',
+        'company_mail_port',
+        'company_mail_username',
+        'company_mail_password',
+        'company_mail_encryption',
+        'company_mail_scheme',
+        'company_mail_url',
+        'company_mail_timeout',
+        'company_mail_local_domain',
+        'company_from_name',
+        'company_from_mail',
+        'company_mail_mailgun_domain',
+        'company_mail_mailgun_secret',
+        'company_mail_mailgun_endpoint',
+        'company_mail_mailgun_scheme',
+        'company_mail_ses_key',
+        'company_mail_ses_secret',
+        'company_mail_ses_region',
+        'company_mail_sendmail_path',
+    ];
+
+    public static function apply(int $companyId): void
+    {
+        $useCustom = CompanySetting::getSetting('use_custom_mail_config', $companyId);
+
+        if ($useCustom !== 'YES') {
+            return;
+        }
+
+        $settings = [];
+        foreach (self::$mailSettingKeys as $key) {
+            $value = CompanySetting::getSetting($key, $companyId);
+            if ($value !== null) {
+                $settings[$key] = $value;
+            }
+        }
+
+        $driver = $settings['company_mail_driver'] ?? null;
+
+        if (empty($driver)) {
+            return;
+        }
+
+        Config::set('mail.default', $driver);
+
+        switch ($driver) {
+            case 'smtp':
+                Config::set('mail.mailers.smtp.host', $settings['company_mail_host'] ?? '127.0.0.1');
+                Config::set('mail.mailers.smtp.port', $settings['company_mail_port'] ?? 2525);
+                Config::set('mail.mailers.smtp.username', $settings['company_mail_username'] ?? null);
+                Config::set('mail.mailers.smtp.password', $settings['company_mail_password'] ?? null);
+                Config::set('mail.mailers.smtp.encryption', $settings['company_mail_encryption'] ?? 'none');
+                Config::set('mail.mailers.smtp.scheme', $settings['company_mail_scheme'] ?? null);
+                Config::set('mail.mailers.smtp.url', $settings['company_mail_url'] ?? null);
+                Config::set('mail.mailers.smtp.timeout', $settings['company_mail_timeout'] ?? null);
+                Config::set('mail.mailers.smtp.local_domain', $settings['company_mail_local_domain'] ?? null);
+                break;
+
+            case 'mailgun':
+                Config::set('services.mailgun.domain', $settings['company_mail_mailgun_domain'] ?? null);
+                Config::set('services.mailgun.secret', $settings['company_mail_mailgun_secret'] ?? null);
+                Config::set('services.mailgun.endpoint', $settings['company_mail_mailgun_endpoint'] ?? 'api.mailgun.net');
+                Config::set('services.mailgun.scheme', $settings['company_mail_mailgun_scheme'] ?? 'https');
+                break;
+
+            case 'ses':
+                Config::set('services.ses.key', $settings['company_mail_ses_key'] ?? null);
+                Config::set('services.ses.secret', $settings['company_mail_ses_secret'] ?? null);
+                Config::set('services.ses.region', $settings['company_mail_ses_region'] ?? 'us-east-1');
+                break;
+
+            case 'sendmail':
+                Config::set('mail.mailers.sendmail.path', $settings['company_mail_sendmail_path'] ?? '/usr/sbin/sendmail -bs -i');
+                break;
+        }
+
+        if (! empty($settings['company_from_mail'])) {
+            Config::set('mail.from.address', $settings['company_from_mail']);
+        }
+        if (! empty($settings['company_from_name'])) {
+            Config::set('mail.from.name', $settings['company_from_name']);
+        }
+
+        // Purge the cached mailer so Laravel creates a new one with updated config
+        Mail::purge($driver);
+    }
+}
diff --git a/app/Traits/GeneratesMenuTrait.php b/app/Traits/GeneratesMenuTrait.php
index b6277294..8c467a65 100644
--- a/app/Traits/GeneratesMenuTrait.php
+++ b/app/Traits/GeneratesMenuTrait.php
@@ -19,6 +19,7 @@ trait GeneratesMenuTrait
                     'icon' => $data->data['icon'],
                     'name' => $data->data['name'],
                     'group' => $data->data['group'],
+                    'group_label' => $data->data['group_label'] ?? '',
                 ];
             }
         }
diff --git a/app/Traits/GeneratesPdfTrait.php b/app/Traits/GeneratesPdfTrait.php
index 623d33e8..980db0b5 100644
--- a/app/Traits/GeneratesPdfTrait.php
+++ b/app/Traits/GeneratesPdfTrait.php
@@ -5,6 +5,7 @@ namespace App\Traits;
 use App\Models\Address;
 use App\Models\CompanySetting;
 use App\Models\FileDisk;
+use App\Models\Setting;
 use Carbon\Carbon;
 use Illuminate\Support\Facades\App;
 
@@ -68,7 +69,7 @@ trait GeneratesPdfTrait
 
     public function generatePDF($collection_name, $file_name, $deleteExistingFile = false)
     {
-        $save_pdf_to_disk = CompanySetting::getSetting('save_pdf_to_disk', $this->company_id);
+        $save_pdf_to_disk = Setting::getSetting('save_pdf_to_disk') ?? 'NO';
 
         if ($save_pdf_to_disk == 'NO') {
             return 0;
diff --git a/bootstrap/app.php b/bootstrap/app.php
index 36fced57..587cd651 100644
--- a/bootstrap/app.php
+++ b/bootstrap/app.php
@@ -15,6 +15,7 @@ use App\Http\Middleware\RedirectIfAuthenticated;
 use App\Http\Middleware\RedirectIfInstalled;
 use App\Http\Middleware\RedirectIfUnauthorized;
 use App\Http\Middleware\ScopeBouncer;
+use App\Http\Middleware\SuperAdminMiddleware;
 use App\Http\Middleware\TrimStrings;
 use App\Http\Middleware\TrustProxies;
 use App\Providers\AppServiceProvider;
@@ -81,6 +82,7 @@ return Application::configure(basePath: dirname(__DIR__))
             'pdf-auth' => PdfMiddleware::class,
             'redirect-if-installed' => RedirectIfInstalled::class,
             'redirect-if-unauthenticated' => RedirectIfUnauthorized::class,
+            'super-admin' => SuperAdminMiddleware::class,
         ]);
 
         $middleware->priority([
diff --git a/config/invoiceshelf.php b/config/invoiceshelf.php
index 0fe83bc2..74148ac4 100644
--- a/config/invoiceshelf.php
+++ b/config/invoiceshelf.php
@@ -170,16 +170,6 @@ return [
             'ability' => '',
             'model' => '',
         ],
-        [
-            'title' => 'settings.menu_title.pdf_generation',
-            'group' => '',
-            'name' => 'PDF Generation',
-            'link' => '/admin/settings/pdf-generation',
-            'icon' => 'DocumentIcon',
-            'owner_only' => true,
-            'ability' => '',
-            'model' => '',
-        ],
         [
             'title' => 'settings.roles.title',
             'group' => '',
@@ -261,7 +251,7 @@ return [
             'model' => Expense::class,
         ],
         [
-            'title' => 'settings.mail.mail_config',
+            'title' => 'settings.mail.company_mail_config',
             'group' => '',
             'name' => 'Mail Configuration',
             'link' => '/admin/settings/mail-configuration',
@@ -270,36 +260,6 @@ return [
             'ability' => '',
             'model' => '',
         ],
-        [
-            'title' => 'settings.menu_title.file_disk',
-            'group' => '',
-            'name' => 'File Disk',
-            'link' => '/admin/settings/file-disk',
-            'icon' => 'FolderIcon',
-            'owner_only' => true,
-            'ability' => '',
-            'model' => '',
-        ],
-        [
-            'title' => 'settings.menu_title.backup',
-            'group' => '',
-            'name' => 'Backup',
-            'link' => '/admin/settings/backup',
-            'icon' => 'CircleStackIcon',
-            'owner_only' => true,
-            'ability' => '',
-            'model' => '',
-        ],
-        [
-            'title' => 'settings.menu_title.update_app',
-            'group' => '',
-            'name' => 'Update App',
-            'link' => '/admin/settings/update-app',
-            'icon' => 'ArrowPathIcon',
-            'owner_only' => true,
-            'ability' => '',
-            'model' => '',
-        ],
     ],
 
     /*
@@ -431,6 +391,40 @@ return [
             'ability' => '',
             'model' => '',
         ],
+        [
+            'title' => 'navigation.companies',
+            'group' => 4,
+            'group_label' => 'navigation.administration',
+            'link' => '/admin/administration/companies',
+            'icon' => 'BuildingOfficeIcon',
+            'name' => 'AdminCompanies',
+            'owner_only' => false,
+            'super_admin_only' => true,
+            'ability' => '',
+            'model' => '',
+        ],
+        [
+            'title' => 'navigation.all_users',
+            'group' => 4,
+            'link' => '/admin/administration/users',
+            'icon' => 'UsersIcon',
+            'name' => 'AdminUsers',
+            'owner_only' => false,
+            'super_admin_only' => true,
+            'ability' => '',
+            'model' => '',
+        ],
+        [
+            'title' => 'navigation.settings',
+            'group' => 4,
+            'link' => '/admin/administration/settings/mail-configuration',
+            'icon' => 'CogIcon',
+            'name' => 'AdminSettings',
+            'owner_only' => false,
+            'super_admin_only' => true,
+            'ability' => '',
+            'model' => '',
+        ],
     ],
 
     /*
diff --git a/database/migrations/2026_04_03_070131_create_impersonation_logs_table.php b/database/migrations/2026_04_03_070131_create_impersonation_logs_table.php
new file mode 100644
index 00000000..613858e6
--- /dev/null
+++ b/database/migrations/2026_04_03_070131_create_impersonation_logs_table.php
@@ -0,0 +1,29 @@
+<?php
+
+use Illuminate\Database\Migrations\Migration;
+use Illuminate\Database\Schema\Blueprint;
+use Illuminate\Support\Facades\Schema;
+
+return new class extends Migration
+{
+    public function up(): void
+    {
+        Schema::create('impersonation_logs', function (Blueprint $table) {
+            $table->id();
+            $table->unsignedBigInteger('admin_id');
+            $table->unsignedBigInteger('user_id');
+            $table->string('ip_address', 45)->nullable();
+            $table->unsignedBigInteger('token_id')->nullable();
+            $table->timestamp('stopped_at')->nullable();
+            $table->timestamps();
+
+            $table->foreign('admin_id')->references('id')->on('users')->onDelete('cascade');
+            $table->foreign('user_id')->references('id')->on('users')->onDelete('cascade');
+        });
+    }
+
+    public function down(): void
+    {
+        Schema::dropIfExists('impersonation_logs');
+    }
+};
diff --git a/lang/en.json b/lang/en.json
index 66edc9d7..168a94fb 100644
--- a/lang/en.json
+++ b/lang/en.json
@@ -12,7 +12,10 @@
     "settings": "Settings",
     "logout": "Logout",
     "users": "Users",
-    "modules": "Modules"
+    "modules": "Modules",
+    "administration": "Administration",
+    "companies": "Companies",
+    "all_users": "Users"
   },
   "general": {
     "add_company": "Add Company",
@@ -909,7 +912,13 @@
       "from_name": "From Mail Name",
       "from_mail": "From Mail Address",
       "encryption": "Mail Encryption",
-      "mail_config_desc": "Below is the form for Configuring Email driver for sending emails from the app. You can also configure third party providers like Sendgrid, SES etc."
+      "mail_config_desc": "Below is the form for Configuring Email driver for sending emails from the app. You can also configure third party providers like Sendgrid, SES etc.",
+      "company_mail_config": "Mail Configuration",
+      "company_mail_config_desc": "Configure a custom mail driver for this company. When enabled, this overrides the global mail configuration.",
+      "company_mail_config_updated": "Company mail configuration updated successfully",
+      "use_custom_mail_config": "Use Custom Mail Configuration",
+      "use_custom_mail_config_desc": "Enable this to use a company-specific mail configuration instead of the global settings.",
+      "using_global_mail_config": "This company is using the global mail configuration. Enable the toggle above to configure a custom mail driver."
     },
     "pdf": {
       "title": "PDF Setting",
@@ -1665,5 +1674,32 @@
   "mail_view_payment": "View Payment",
   "notification_view_estimate": "[Notification] Estimate viewed",
   "notification_view_invoice": "[Notification] Invoice viewed",
-  "You have received a new invoice from <b>{COMPANY_NAME}</b>.</br> Please download using the button below:": "You have received a new invoice from <b>{COMPANY_NAME}</b>.</br> Please download using the button below:"
+  "You have received a new invoice from <b>{COMPANY_NAME}</b>.</br> Please download using the button below:": "You have received a new invoice from <b>{COMPANY_NAME}</b>.</br> Please download using the button below:",
+  "administration": {
+    "companies": {
+      "title": "All Companies",
+      "edit_company": "Edit Company",
+      "company_name": "Company Name",
+      "owner": "Owner",
+      "address": "Address",
+      "updated_message": "Company updated successfully",
+      "no_companies": "No companies found",
+      "list_description": "Manage all companies across the system"
+    },
+    "settings": {
+      "title": "Global Settings"
+    },
+    "users": {
+      "title": "All Users",
+      "edit_user": "Edit User",
+      "role": "Role",
+      "no_users": "No users found",
+      "list_description": "View all users across the system",
+      "updated_message": "User updated successfully",
+      "impersonate": "Impersonate",
+      "impersonate_confirm": "You are about to impersonate {name}. You will be logged in as this user with a temporary session that expires in 2 hours. This action is logged.",
+      "impersonating_banner": "You are currently impersonating a user. All actions are logged.",
+      "stop_impersonating": "Stop Impersonating"
+    }
+  }
 }
diff --git a/resources/scripts/admin/admin-router.js b/resources/scripts/admin/admin-router.js
index 6a1c21d2..3f18fa2b 100644
--- a/resources/scripts/admin/admin-router.js
+++ b/resources/scripts/admin/admin-router.js
@@ -47,17 +47,10 @@ const ExpenseCategory = () =>
   import('@/scripts/admin/views/settings/ExpenseCategorySetting.vue')
 const ExchangeRateSetting = () =>
   import('@/scripts/admin/views/settings/ExchangeRateProviderSetting.vue')
-const MailConfig = () =>
-  import('@/scripts/admin/views/settings/MailConfigSetting.vue')
-const FileDisk = () =>
-  import('@/scripts/admin/views/settings/FileDiskSetting.vue')
-const Backup = () => import('@/scripts/admin/views/settings/BackupSetting.vue')
-const UpdateApp = () =>
-  import('@/scripts/admin/views/settings/UpdateAppSetting.vue')
 const RolesSettings = () =>
   import('@/scripts/admin/views/settings/RolesSettings.vue')
-const PDFGenerationSettings = () =>
-  import('@/scripts/admin/views/settings/PDFGenerationSetting.vue')
+const CompanyMailConfig = () =>
+  import('@/scripts/admin/views/settings/CompanyMailConfigSetting.vue')
 
 // Items
 const ItemsIndex = () => import('@/scripts/admin/views/items/Index.vue')
@@ -115,6 +108,28 @@ const ModuleView = () => import('@/scripts/admin/views/modules/View.vue')
 const InvoicePublicPage = () =>
   import('@/scripts/components/InvoicePublicPage.vue')
 
+// Administration (Super Admin)
+const AdminCompaniesIndex = () =>
+  import('@/scripts/admin/views/administration/companies/Index.vue')
+const AdminCompaniesEdit = () =>
+  import('@/scripts/admin/views/administration/companies/Edit.vue')
+const AdminUsersIndex = () =>
+  import('@/scripts/admin/views/administration/users/Index.vue')
+const AdminUsersEdit = () =>
+  import('@/scripts/admin/views/administration/users/Edit.vue')
+const AdminSettingsIndex = () =>
+  import('@/scripts/admin/views/administration/settings/SettingsIndex.vue')
+const AdminMailConfig = () =>
+  import('@/scripts/admin/views/settings/MailConfigSetting.vue')
+const AdminPDFGeneration = () =>
+  import('@/scripts/admin/views/settings/PDFGenerationSetting.vue')
+const AdminBackup = () =>
+  import('@/scripts/admin/views/settings/BackupSetting.vue')
+const AdminUpdateApp = () =>
+  import('@/scripts/admin/views/settings/UpdateAppSetting.vue')
+const AdminFileDisk = () =>
+  import('@/scripts/admin/views/settings/FileDiskSetting.vue')
+
 export default [
   {
     path: '/installation',
@@ -304,36 +319,11 @@ export default [
             meta: { ability: abilities.VIEW_EXPENSE },
             component: ExpenseCategory,
           },
-
           {
             path: 'mail-configuration',
-            name: 'mailconfig',
+            name: 'company.mailconfig',
             meta: { isOwner: true },
-            component: MailConfig,
-          },
-          {
-            path: 'file-disk',
-            name: 'file-disk',
-            meta: { isOwner: true },
-            component: FileDisk,
-          },
-          {
-            path: 'backup',
-            name: 'backup',
-            meta: { isOwner: true },
-            component: Backup,
-          },
-          {
-            path: 'update-app',
-            name: 'updateapp',
-            meta: { isOwner: true },
-            component: UpdateApp,
-          },
-          {
-            path: 'pdf-generation',
-            name: 'pdf.generation',
-            meta: { isOwner: true },
-            component: PDFGenerationSettings,
+            component: CompanyMailConfig,
           },
         ],
       },
@@ -495,6 +485,65 @@ export default [
         meta: { ability: abilities.VIEW_FINANCIAL_REPORT },
         component: ReportsIndex,
       },
+
+      // Administration (Super Admin)
+      {
+        path: 'administration/companies',
+        name: 'admin.companies.index',
+        meta: { isSuperAdmin: true },
+        component: AdminCompaniesIndex,
+      },
+      {
+        path: 'administration/companies/:id/edit',
+        name: 'admin.companies.edit',
+        meta: { isSuperAdmin: true },
+        component: AdminCompaniesEdit,
+      },
+      {
+        path: 'administration/users',
+        name: 'admin.users.index',
+        meta: { isSuperAdmin: true },
+        component: AdminUsersIndex,
+      },
+      {
+        path: 'administration/users/:id/edit',
+        name: 'admin.users.edit',
+        meta: { isSuperAdmin: true },
+        component: AdminUsersEdit,
+      },
+      {
+        path: 'administration/settings',
+        name: 'admin.settings',
+        meta: { isSuperAdmin: true },
+        component: AdminSettingsIndex,
+        children: [
+          {
+            path: 'mail-configuration',
+            name: 'admin.settings.mail',
+            component: AdminMailConfig,
+          },
+          {
+            path: 'pdf-generation',
+            name: 'admin.settings.pdf',
+            component: AdminPDFGeneration,
+          },
+          {
+            path: 'backup',
+            name: 'admin.settings.backup',
+            component: AdminBackup,
+          },
+          {
+            path: 'update-app',
+            name: 'admin.settings.update',
+            component: AdminUpdateApp,
+          },
+          {
+            path: 'file-disk',
+            name: 'admin.settings.filedisk',
+            component: AdminFileDisk,
+          },
+        ],
+      },
     ],
   },
   { path: '/:catchAll(.*)', component: NotFoundPage },
diff --git a/resources/scripts/admin/components/ImpersonationBanner.vue b/resources/scripts/admin/components/ImpersonationBanner.vue
new file mode 100644
index 00000000..3aaa7c5c
--- /dev/null
+++ b/resources/scripts/admin/components/ImpersonationBanner.vue
@@ -0,0 +1,41 @@
+<template>
+  <div
+    v-if="isImpersonating"
+    class="fixed top-0 left-0 right-0 z-50 flex items-center justify-center px-4 py-2 text-sm font-medium text-white bg-orange-600"
+  >
+    <BaseIcon name="ExclamationTriangleIcon" class="w-4 h-4 mr-2" />
+    <span>{{ $t('administration.users.impersonating_banner') }}</span>
+    <button
+      class="ml-4 px-3 py-1 text-xs font-semibold text-orange-600 bg-white rounded hover:bg-orange-50"
+      :disabled="isStopping"
+      @click="stopImpersonating"
+    >
+      {{ $t('administration.users.stop_impersonating') }}
+    </button>
+  </div>
+</template>
+
+<script setup>
+import { computed, ref } from 'vue'
+import Ls from '@/scripts/services/ls.js'
+import { useAdministrationStore } from '@/scripts/admin/stores/administration'
+
+const administrationStore = useAdministrationStore()
+let isStopping = ref(false)
+
+const isImpersonating = computed(() => {
+  return Ls.get('admin.impersonating') === 'true'
+})
+
+async function stopImpersonating() {
+  isStopping.value = true
+
+  try {
+    await administrationStore.stopImpersonating()
+  } catch {
+    // Token already cleaned up in store action
+  }
+
+  window.location.href = '/admin/administration/users'
+}
+</script>
diff --git a/resources/scripts/admin/components/dropdowns/AdminCompanyIndexDropdown.vue b/resources/scripts/admin/components/dropdowns/AdminCompanyIndexDropdown.vue
new file mode 100644
index 00000000..f5f72ede
--- /dev/null
+++ b/resources/scripts/admin/components/dropdowns/AdminCompanyIndexDropdown.vue
@@ -0,0 +1,34 @@
+<template>
+  <BaseDropdown>
+    <template #activator>
+      <BaseIcon name="EllipsisHorizontalIcon" class="h-5 text-gray-500" />
+    </template>
+
+    <router-link :to="`/admin/administration/companies/${row.id}/edit`">
+      <BaseDropdownItem>
+        <BaseIcon
+          name="PencilIcon"
+          class="w-5 h-5 mr-3 text-gray-400 group-hover:text-gray-500"
+        />
+        {{ $t('general.edit') }}
+      </BaseDropdownItem>
+    </router-link>
+  </BaseDropdown>
+</template>
+
+<script setup>
+defineProps({
+  row: {
+    type: Object,
+    default: null,
+  },
+  table: {
+    type: Object,
+    default: null,
+  },
+  loadData: {
+    type: Function,
+    default: null,
+  },
+})
+</script>
diff --git a/resources/scripts/admin/components/dropdowns/AdminUserIndexDropdown.vue b/resources/scripts/admin/components/dropdowns/AdminUserIndexDropdown.vue
new file mode 100644
index 00000000..d212a176
--- /dev/null
+++ b/resources/scripts/admin/components/dropdowns/AdminUserIndexDropdown.vue
@@ -0,0 +1,77 @@
+<template>
+  <BaseDropdown>
+    <template #activator>
+      <BaseIcon name="EllipsisHorizontalIcon" class="h-5 text-gray-500" />
+    </template>
+
+    <router-link :to="`/admin/administration/users/${row.id}/edit`">
+      <BaseDropdownItem>
+        <BaseIcon
+          name="PencilIcon"
+          class="w-5 h-5 mr-3 text-gray-400 group-hover:text-gray-500"
+        />
+        {{ $t('general.edit') }}
+      </BaseDropdownItem>
+    </router-link>
+
+    <BaseDropdownItem
+      v-if="row.id !== userStore.currentUser?.id"
+      @click="onImpersonate"
+    >
+      <BaseIcon
+        name="ArrowRightEndOnRectangleIcon"
+        class="w-5 h-5 mr-3 text-gray-400 group-hover:text-gray-500"
+      />
+      {{ $t('administration.users.impersonate') }}
+    </BaseDropdownItem>
+  </BaseDropdown>
+</template>
+
+<script setup>
+import { useI18n } from 'vue-i18n'
+import { useUserStore } from '@/scripts/admin/stores/user'
+import { useAdministrationStore } from '@/scripts/admin/stores/administration'
+import { useDialogStore } from '@/scripts/stores/dialog'
+
+const props = defineProps({
+  row: {
+    type: Object,
+    default: null,
+  },
+  table: {
+    type: Object,
+    default: null,
+  },
+  loadData: {
+    type: Function,
+    default: null,
+  },
+})
+
+const userStore = useUserStore()
+const administrationStore = useAdministrationStore()
+const dialogStore = useDialogStore()
+const { t } = useI18n()
+
+function onImpersonate() {
+  dialogStore
+    .openDialog({
+      title: t('general.are_you_sure'),
+      message: t('administration.users.impersonate_confirm', {
+        name: props.row.name,
+      }),
+      yesLabel: t('administration.users.impersonate'),
+      noLabel: t('general.cancel'),
+      variant: 'danger',
+      size: 'lg',
+      hideNoButton: false,
+    })
+    .then((confirmed) => {
+      if (confirmed) {
+        administrationStore.impersonateUser(props.row.id).then(() => {
+          window.location.href = '/admin/dashboard'
+        })
+      }
+    })
+}
+</script>
diff --git a/resources/scripts/admin/components/modal-components/MailTestModal.vue b/resources/scripts/admin/components/modal-components/MailTestModal.vue
index 73db9095..fcbe37ae 100644
--- a/resources/scripts/admin/components/modal-components/MailTestModal.vue
+++ b/resources/scripts/admin/components/modal-components/MailTestModal.vue
@@ -96,6 +96,14 @@ import { required, email, maxLength, helpers } from '@vuelidate/validators'
 import useVuelidate from '@vuelidate/core'
 import { useModalStore } from '@/scripts/stores/modal'
 import { useMailDriverStore } from '@/scripts/admin/stores/mail-driver'
+import { useCompanyMailStore } from '@/scripts/admin/stores/company-mail'
+
+const props = defineProps({
+  storeType: {
+    type: String,
+    default: 'global',
+  },
+})
 
 let isSaving = ref(false)
 let formData = reactive({
@@ -106,6 +114,11 @@ let formData = reactive({
 
 const modalStore = useModalStore()
 const mailDriverStore = useMailDriverStore()
+const companyMailStore = useCompanyMailStore()
+
+const activeStore = computed(() => {
+  return props.storeType === 'company' ? companyMailStore : mailDriverStore
+})
 const { t } = useI18n()
 
 const modalActive = computed(() => {
@@ -153,7 +166,7 @@ async function onTestMailSend() {
   }
 
   isSaving.value = true
-  let response = await mailDriverStore.sendTestMail(formData)
+  let response = await activeStore.value.sendTestMail(formData)
   if (response.data) {
     closeTestModal()
     isSaving.value = false
diff --git a/resources/scripts/admin/layouts/LayoutBasic.vue b/resources/scripts/admin/layouts/LayoutBasic.vue
index 5ed33910..807ea18a 100644
--- a/resources/scripts/admin/layouts/LayoutBasic.vue
+++ b/resources/scripts/admin/layouts/LayoutBasic.vue
@@ -2,6 +2,8 @@
   <div v-if="isAppLoaded" class="h-full">
     <NotificationRoot />
 
+    <ImpersonationBanner />
+
     <SiteHeader />
 
     <SiteSidebar />
@@ -34,6 +36,7 @@ import SiteHeader from '@/scripts/admin/layouts/partials/TheSiteHeader.vue'
 import SiteSidebar from '@/scripts/admin/layouts/partials/TheSiteSidebar.vue'
 import NotificationRoot from '@/scripts/components/notifications/NotificationRoot.vue'
 import ExchangeRateBulkUpdateModal from '@/scripts/admin/components/modal-components/ExchangeRateBulkUpdateModal.vue'
+import ImpersonationBanner from '@/scripts/admin/components/ImpersonationBanner.vue'
 
 const globalStore = useGlobalStore()
 const route = useRoute()
@@ -52,6 +55,8 @@ onMounted(() => {
   globalStore.bootstrap().then((res) => {
     if (route.meta.ability && !userStore.hasAbilities(route.meta.ability)) {
       router.push({ name: 'account.settings' })
+    } else if (route.meta.isSuperAdmin && !userStore.currentUser.is_super_admin) {
+      router.push({ name: 'dashboard' })
     } else if (route.meta.isOwner && !userStore.currentUser.is_owner) {
       router.push({ name: 'account.settings' })
     }
diff --git a/resources/scripts/admin/layouts/partials/TheSiteSidebar.vue b/resources/scripts/admin/layouts/partials/TheSiteSidebar.vue
index 789a2719..ecb64c3e 100644
--- a/resources/scripts/admin/layouts/partials/TheSiteSidebar.vue
+++ b/resources/scripts/admin/layouts/partials/TheSiteSidebar.vue
@@ -72,10 +72,16 @@
             </div>
 
             <nav
-              v-for="menu in globalStore.menuGroups"
-              :key="menu"
+              v-for="(menu, index) in globalStore.menuGroups"
+              :key="index"
               class="mt-5 space-y-1"
             >
+              <div
+                v-if="menu[0] && menu[0].group_label"
+                class="px-4 pt-4 pb-1 text-xs font-semibold text-gray-400 uppercase tracking-wider border-t border-gray-200"
+              >
+                {{ $t(menu[0].group_label) }}
+              </div>
               <router-link
                 v-for="item in menu"
                 :key="item.name"
@@ -126,10 +132,16 @@
     "
   >
     <div
-      v-for="menu in globalStore.menuGroups"
-      :key="menu"
+      v-for="(menu, index) in globalStore.menuGroups"
+      :key="index"
       class="p-0 m-0 mt-6 list-none"
     >
+      <div
+        v-if="menu[0] && menu[0].group_label"
+        class="px-6 pt-4 pb-1 text-xs font-semibold text-gray-400 uppercase tracking-wider border-t border-gray-200"
+      >
+        {{ $t(menu[0].group_label) }}
+      </div>
       <router-link
         v-for="item in menu"
         :key="item"
diff --git a/resources/scripts/admin/stores/administration.js b/resources/scripts/admin/stores/administration.js
new file mode 100644
index 00000000..9a7dbe5a
--- /dev/null
+++ b/resources/scripts/admin/stores/administration.js
@@ -0,0 +1,162 @@
+import http from '@/scripts/http'
+import Ls from '@/scripts/services/ls.js'
+import { defineStore } from 'pinia'
+import { useNotificationStore } from '@/scripts/stores/notification'
+import { handleError } from '@/scripts/helpers/error-handling'
+
+export const useAdministrationStore = defineStore('administration', {
+  state: () => ({
+    companies: [],
+    totalCompanies: 0,
+    selectedCompany: null,
+
+    users: [],
+    totalUsers: 0,
+  }),
+
+  actions: {
+    fetchCompanies(params) {
+      return new Promise((resolve, reject) => {
+        http
+          .get('/api/v1/super-admin/companies', { params })
+          .then((response) => {
+            this.companies = response.data.data
+            this.totalCompanies = response.data.meta
+              ? response.data.meta.total
+              : response.data.data.length
+            resolve(response)
+          })
+          .catch((err) => {
+            handleError(err)
+            reject(err)
+          })
+      })
+    },
+
+    fetchCompany(id) {
+      return new Promise((resolve, reject) => {
+        http
+          .get(`/api/v1/super-admin/companies/${id}`)
+          .then((response) => {
+            this.selectedCompany = response.data.data
+            resolve(response)
+          })
+          .catch((err) => {
+            handleError(err)
+            reject(err)
+          })
+      })
+    },
+
+    fetchUsers(params) {
+      return new Promise((resolve, reject) => {
+        http
+          .get('/api/v1/super-admin/users', { params })
+          .then((response) => {
+            this.users = response.data.data
+            this.totalUsers = response.data.meta
+              ? response.data.meta.total
+              : response.data.data.length
+            resolve(response)
+          })
+          .catch((err) => {
+            handleError(err)
+            reject(err)
+          })
+      })
+    },
+
+    fetchUser(id) {
+      return new Promise((resolve, reject) => {
+        http
+          .get(`/api/v1/super-admin/users/${id}`)
+          .then((response) => {
+            resolve(response)
+          })
+          .catch((err) => {
+            handleError(err)
+            reject(err)
+          })
+      })
+    },
+
+    updateUser(id, data) {
+      return new Promise((resolve, reject) => {
+        http
+          .put(`/api/v1/super-admin/users/${id}`, data)
+          .then((response) => {
+            const { global } = window.i18n
+            const notificationStore = useNotificationStore()
+            notificationStore.showNotification({
+              type: 'success',
+              message: global.t('administration.users.updated_message'),
+            })
+            resolve(response)
+          })
+          .catch((err) => {
+            handleError(err)
+            reject(err)
+          })
+      })
+    },
+
+    impersonateUser(id) {
+      return new Promise((resolve, reject) => {
+        http
+          .post(`/api/v1/super-admin/users/${id}/impersonate`)
+          .then((response) => {
+            Ls.set('admin.impersonating', 'true')
+            Ls.set('auth.token', `Bearer ${response.data.token}`)
+
+            resolve(response)
+          })
+          .catch((err) => {
+            handleError(err)
+            reject(err)
+          })
+      })
+    },
+
+    stopImpersonating() {
+      return new Promise((resolve, reject) => {
+        http
+          .post('/api/v1/super-admin/stop-impersonating')
+          .then((response) => {
+            Ls.remove('admin.impersonating')
+            Ls.remove('auth.token')
+
+            resolve(response)
+          })
+          .catch((err) => {
+            Ls.remove('admin.impersonating')
+            Ls.remove('auth.token')
+
+            handleError(err)
+            reject(err)
+          })
+      })
+    },
+
+    updateCompany(id, data) {
+      return new Promise((resolve, reject) => {
+        http
+          .put(`/api/v1/super-admin/companies/${id}`, data)
+          .then((response) => {
+            const { global } = window.i18n
+            const notificationStore = useNotificationStore()
+            notificationStore.showNotification({
+              type: 'success',
+              message: global.t(
+                'administration.companies.updated_message'
+              ),
+            })
+            resolve(response)
+          })
+          .catch((err) => {
+            handleError(err)
+            reject(err)
+          })
+      })
+    },
+  },
+})
diff --git a/resources/scripts/admin/stores/company-mail.js b/resources/scripts/admin/stores/company-mail.js
new file mode 100644
index 00000000..97a2850b
--- /dev/null
+++ b/resources/scripts/admin/stores/company-mail.js
@@ -0,0 +1,91 @@
+import http from '@/scripts/http'
+import { defineStore } from 'pinia'
+import { useNotificationStore } from '@/scripts/stores/notification'
+import { handleError } from '@/scripts/helpers/error-handling'
+
+export const useCompanyMailStore = defineStore('company-mail', {
+  state: () => ({
+    mailConfigData: null,
+    mail_driver: '',
+    mail_drivers: [],
+  }),
+
+  actions: {
+    fetchMailDrivers() {
+      return new Promise((resolve, reject) => {
+        http
+          .get('/api/v1/mail/drivers')
+          .then((response) => {
+            if (response.data) {
+              this.mail_drivers = response.data
+            }
+            resolve(response)
+          })
+          .catch((err) => {
+            handleError(err)
+            reject(err)
+          })
+      })
+    },
+
+    fetchMailConfig() {
+      return new Promise((resolve, reject) => {
+        http
+          .get('/api/v1/company/mail/company-config')
+          .then((response) => {
+            if (response.data) {
+              this.mailConfigData = response.data
+              this.mail_driver = response.data.mail_driver || ''
+            }
+            resolve(response)
+          })
+          .catch((err) => {
+            handleError(err)
+            reject(err)
+          })
+      })
+    },
+
+    updateMailConfig(data) {
+      return new Promise((resolve, reject) => {
+        http
+          .post('/api/v1/company/mail/company-config', data)
+          .then((response) => {
+            const { global } = window.i18n
+            const notificationStore = useNotificationStore()
+            notificationStore.showNotification({
+              type: 'success',
+              message: global.t('settings.mail.company_mail_config_updated'),
+            })
+            resolve(response)
+          })
+          .catch((err) => {
+            handleError(err)
+            reject(err)
+          })
+      })
+    },
+
+    sendTestMail(data) {
+      return new Promise((resolve, reject) => {
+        http
+          .post('/api/v1/company/mail/company-test', data)
+          .then((response) => {
+            const { global } = window.i18n
+            const notificationStore = useNotificationStore()
+            if (response.data.success) {
+              notificationStore.showNotification({
+                type: 'success',
+                message: global.t('general.send_mail_successfully'),
+              })
+            }
+            resolve(response)
+          })
+          .catch((err) => {
+            handleError(err)
+            reject(err)
+          })
+      })
+    },
+  },
+})
diff --git a/resources/scripts/admin/views/administration/companies/Edit.vue b/resources/scripts/admin/views/administration/companies/Edit.vue
new file mode 100644
index 00000000..ef929083
--- /dev/null
+++ b/resources/scripts/admin/views/administration/companies/Edit.vue
@@ -0,0 +1,255 @@
+<template>
+  <BasePage v-if="!isLoading">
+    <BasePageHeader :title="$t('administration.companies.edit_company')">
+      <BaseBreadcrumb>
+        <BaseBreadcrumbItem :title="$t('general.home')" to="dashboard" />
+        <BaseBreadcrumbItem
+          :title="$t('administration.companies.title')"
+          to="/admin/administration/companies"
+        />
+        <BaseBreadcrumbItem
+          :title="$t('administration.companies.edit_company')"
+          to="#"
+          active
+        />
+      </BaseBreadcrumb>
+    </BasePageHeader>
+
+    <form @submit.prevent="submitForm">
+      <BaseCard class="mt-6">
+        <BaseInputGrid class="mt-5">
+          <BaseInputGroup
+            :label="$t('administration.companies.company_name')"
+            :error="v$.name.$error && v$.name.$errors[0].$message"
+            required
+          >
+            <BaseInput
+              v-model="formData.name"
+              :invalid="v$.name.$error"
+              @blur="v$.name.$touch()"
+            />
+          </BaseInputGroup>
+
+          <BaseInputGroup
+            :label="$t('administration.companies.owner')"
+            :error="v$.owner_id.$error && v$.owner_id.$errors[0].$message"
+            required
+          >
+            <BaseMultiselect
+              v-model="formData.owner_id"
+              label="name"
+              :invalid="v$.owner_id.$error"
+              :options="searchUsers"
+              value-prop="id"
+              :can-deselect="false"
+              :can-clear="false"
+              searchable
+              :filter-results="false"
+              :min-chars="0"
+              :resolve-on-load="true"
+              :delay="300"
+              object
+              track-by="name"
+              @select="onOwnerSelect"
+            />
+          </BaseInputGroup>
+
+          <BaseInputGroup :label="$t('settings.company_info.tax_id')">
+            <BaseInput v-model="formData.tax_id" type="text" />
+          </BaseInputGroup>
+
+          <BaseInputGroup :label="$t('settings.company_info.vat_id')">
+            <BaseInput v-model="formData.vat_id" type="text" />
+          </BaseInputGroup>
+        </BaseInputGrid>
+
+        <BaseDivider class="my-6" />
+
+        <h3 class="text-lg font-medium text-gray-900 mb-4">
+          {{ $t('administration.companies.address') }}
+        </h3>
+
+        <BaseInputGrid>
+          <BaseInputGroup :label="$t('settings.company_info.phone')">
+            <BaseInput v-model="formData.address.phone" />
+          </BaseInputGroup>
+
+          <BaseInputGroup :label="$t('settings.company_info.country')">
+            <BaseMultiselect
+              v-model="formData.address.country_id"
+              label="name"
+              :options="globalStore.countries"
+              value-prop="id"
+              :can-deselect="true"
+              :can-clear="false"
+              searchable
+              track-by="name"
+            />
+          </BaseInputGroup>
+
+          <BaseInputGroup :label="$t('settings.company_info.state')">
+            <BaseInput v-model="formData.address.state" type="text" />
+          </BaseInputGroup>
+
+          <BaseInputGroup :label="$t('settings.company_info.city')">
+            <BaseInput v-model="formData.address.city" type="text" />
+          </BaseInputGroup>
+
+          <BaseInputGroup :label="$t('settings.company_info.zip')">
+            <BaseInput v-model="formData.address.zip" />
+          </BaseInputGroup>
+
+          <BaseInputGroup :label="$t('settings.company_info.address')">
+            <BaseTextarea
+              v-model="formData.address.address_street_1"
+              rows="2"
+            />
+          </BaseInputGroup>
+        </BaseInputGrid>
+
+        <BaseButton
+          :loading="isSaving"
+          :disabled="isSaving"
+          type="submit"
+          class="mt-6"
+        >
+          <template #left="slotProps">
+            <BaseIcon
+              v-if="!isSaving"
+              :class="slotProps.class"
+              name="ArrowDownOnSquareIcon"
+            />
+          </template>
+          {{ $t('general.save') }}
+        </BaseButton>
+      </BaseCard>
+    </form>
+  </BasePage>
+
+  <BaseGlobalLoader v-else />
+</template>
+
+<script setup>
+import { reactive, ref, computed, onMounted } from 'vue'
+import { useRoute, useRouter } from 'vue-router'
+import { useI18n } from 'vue-i18n'
+import { useGlobalStore } from '@/scripts/admin/stores/global'
+import { useAdministrationStore } from '@/scripts/admin/stores/administration'
+import { required, helpers } from '@vuelidate/validators'
+import { useVuelidate } from '@vuelidate/core'
+import http from '@/scripts/http'
+
+const route = useRoute()
+const router = useRouter()
+const globalStore = useGlobalStore()
+const administrationStore = useAdministrationStore()
+const { t } = useI18n()
+
+let isLoading = ref(true)
+let isSaving = ref(false)
+
+const formData = reactive({
+  name: '',
+  owner_id: null,
+  vat_id: '',
+  tax_id: '',
+  address: {
+    address_street_1: '',
+    address_street_2: '',
+    country_id: null,
+    state: '',
+    city: '',
+    phone: '',
+    zip: '',
+  },
+})
+
+const rules = computed(() => {
+  return {
+    name: {
+      required: helpers.withMessage(t('validation.required'), required),
+    },
+    owner_id: {
+      required: helpers.withMessage(t('validation.required'), required),
+    },
+  }
+})
+
+const v$ = useVuelidate(
+  rules,
+  computed(() => formData)
+)
+
+onMounted(async () => {
+  await globalStore.fetchCountries()
+  const response = await administrationStore.fetchCompany(route.params.id)
+  const company = response.data.data
+
+  formData.name = company.name
+  formData.vat_id = company.vat_id || ''
+  formData.tax_id = company.tax_id || ''
+
+  if (company.owner) {
+    formData.owner_id = {
+      id: company.owner.id,
+      name: company.owner.name,
+      email: company.owner.email,
+    }
+  }
+
+  if (company.address) {
+    formData.address.address_street_1 = company.address.address_street_1 || ''
+    formData.address.address_street_2 = company.address.address_street_2 || ''
+    formData.address.country_id = company.address.country_id
+    formData.address.state = company.address.state || ''
+    formData.address.city = company.address.city || ''
+    formData.address.phone = company.address.phone || ''
+    formData.address.zip = company.address.zip || ''
+  }
+
+  isLoading.value = false
+})
+
+async function searchUsers(query) {
+  const response = await http.get('/api/v1/search', {
+    params: {
+      search: query,
+      type: 'User',
+    },
+  })
+
+  return response.data.users.map((user) => ({
+    id: user.id,
+    name: `${user.name} (${user.email})`,
+    email: user.email,
+  }))
+}
+
+function onOwnerSelect(option) {
+  formData.owner_id = option
+}
+
+async function submitForm() {
+  v$.value.$touch()
+
+  if (v$.value.$invalid) {
+    return
+  }
+
+  isSaving.value = true
+
+  const data = {
+    name: formData.name,
+    owner_id: formData.owner_id?.id || formData.owner_id,
+    vat_id: formData.vat_id,
+    tax_id: formData.tax_id,
+    address: formData.address,
+  }
+
+  await administrationStore.updateCompany(route.params.id, data)
+
+  isSaving.value = false
+
+  router.push({ name: 'admin.companies.index' })
+}
+</script>
diff --git a/resources/scripts/admin/views/administration/companies/Index.vue b/resources/scripts/admin/views/administration/companies/Index.vue
new file mode 100644
index 00000000..5e99a81d
--- /dev/null
+++ b/resources/scripts/admin/views/administration/companies/Index.vue
@@ -0,0 +1,188 @@
+<template>
+  <BasePage>
+    <BasePageHeader :title="$t('administration.companies.title')">
+      <BaseBreadcrumb>
+        <BaseBreadcrumbItem :title="$t('general.home')" to="dashboard" />
+        <BaseBreadcrumbItem
+          :title="$t('administration.companies.title')"
+          to="#"
+          active
+        />
+      </BaseBreadcrumb>
+
+      <template #actions>
+        <div class="flex items-center justify-end space-x-5">
+          <BaseButton variant="primary-outline" @click="toggleFilter">
+            {{ $t('general.filter') }}
+            <template #right="slotProps">
+              <BaseIcon
+                v-if="!showFilters"
+                name="FunnelIcon"
+                :class="slotProps.class"
+              />
+              <BaseIcon v-else name="XMarkIcon" :class="slotProps.class" />
+            </template>
+          </BaseButton>
+        </div>
+      </template>
+    </BasePageHeader>
+
+    <BaseFilterWrapper :show="showFilters" class="mt-3" @clear="clearFilter">
+      <BaseInputGroup
+        :label="$t('administration.companies.company_name')"
+        class="flex-1 mt-2"
+      >
+        <BaseInput
+          v-model="filters.search"
+          type="text"
+          name="search"
+          autocomplete="off"
+        />
+      </BaseInputGroup>
+    </BaseFilterWrapper>
+
+    <BaseEmptyPlaceholder
+      v-show="showEmptyScreen"
+      :title="$t('administration.companies.no_companies')"
+      :description="$t('administration.companies.list_description')"
+    >
+      <BaseIcon name="BuildingOfficeIcon" class="mt-5 mb-4 h-16 w-16 text-gray-300" />
+    </BaseEmptyPlaceholder>
+
+    <div v-show="!showEmptyScreen" class="relative table-container">
+      <BaseTable
+        ref="table"
+        :data="fetchData"
+        :columns="companyTableColumns"
+        class="mt-3"
+      >
+        <template #cell-name="{ row }">
+          <router-link
+            :to="{
+              name: 'admin.companies.edit',
+              params: { id: row.data.id },
+            }"
+            class="font-medium text-primary-500"
+          >
+            {{ row.data.name }}
+          </router-link>
+        </template>
+
+        <template #cell-owner="{ row }">
+          <span v-if="row.data.owner">{{ row.data.owner.name }}</span>
+          <span v-else class="text-gray-400">-</span>
+        </template>
+
+        <template #cell-owner_email="{ row }">
+          <span v-if="row.data.owner">{{ row.data.owner.email }}</span>
+          <span v-else class="text-gray-400">-</span>
+        </template>
+
+        <template #cell-actions="{ row }">
+          <AdminCompanyDropdown
+            :row="row.data"
+            :table="table"
+            :load-data="refreshTable"
+          />
+        </template>
+      </BaseTable>
+    </div>
+  </BasePage>
+</template>
+
+<script setup>
+import { computed, ref, reactive, watch } from 'vue'
+import { useI18n } from 'vue-i18n'
+import { useAdministrationStore } from '@/scripts/admin/stores/administration'
+import AdminCompanyDropdown from '@/scripts/admin/components/dropdowns/AdminCompanyIndexDropdown.vue'
+
+const administrationStore = useAdministrationStore()
+const { t } = useI18n()
+
+let showFilters = ref(false)
+let isFetchingInitialData = ref(true)
+let table = ref(null)
+
+let filters = reactive({
+  search: '',
+})
+
+const companyTableColumns = computed(() => {
+  return [
+    {
+      key: 'name',
+      label: t('administration.companies.company_name'),
+      thClass: 'extra',
+      tdClass: 'font-medium text-gray-900',
+    },
+    {
+      key: 'owner',
+      label: t('administration.companies.owner'),
+      sortable: false,
+    },
+    {
+      key: 'owner_email',
+      label: t('general.email'),
+      sortable: false,
+    },
+    {
+      key: 'actions',
+      tdClass: 'text-right text-sm font-medium',
+      sortable: false,
+    },
+  ]
+})
+
+const showEmptyScreen = computed(() => {
+  return !administrationStore.totalCompanies && !isFetchingInitialData.value
+})
+
+watch(
+  filters,
+  () => {
+    refreshTable()
+  },
+  { deep: true }
+)
+
+function refreshTable() {
+  table.value && table.value.refresh()
+}
+
+async function fetchData({ page, filter, sort }) {
+  let data = {
+    search: filters.search || '',
+    orderByField: sort.fieldName || 'name',
+    orderBy: sort.order || 'asc',
+    page,
+  }
+
+  isFetchingInitialData.value = true
+
+  let response = await administrationStore.fetchCompanies(data)
+
+  isFetchingInitialData.value = false
+
+  return {
+    data: response.data.data,
+    pagination: {
+      totalPages: response.data.meta.last_page,
+      currentPage: page,
+      totalCount: response.data.meta.total,
+      limit: 10,
+    },
+  }
+}
+
+function clearFilter() {
+  filters.search = ''
+}
+
+function toggleFilter() {
+  if (showFilters.value) {
+    clearFilter()
+  }
+
+  showFilters.value = !showFilters.value
+}
+</script>
diff --git a/resources/scripts/admin/views/administration/settings/SettingsIndex.vue b/resources/scripts/admin/views/administration/settings/SettingsIndex.vue
new file mode 100644
index 00000000..92b1fa5d
--- /dev/null
+++ b/resources/scripts/admin/views/administration/settings/SettingsIndex.vue
@@ -0,0 +1,113 @@
+<template>
+  <BasePage>
+    <BasePageHeader :title="$t('administration.settings.title')" class="mb-6">
+      <BaseBreadcrumb>
+        <BaseBreadcrumbItem :title="$t('general.home')" to="/admin/dashboard" />
+        <BaseBreadcrumbItem
+          :title="$t('administration.settings.title')"
+          to="#"
+          active
+        />
+      </BaseBreadcrumb>
+    </BasePageHeader>
+
+    <div class="w-full mb-6 select-wrapper xl:hidden">
+      <BaseMultiselect
+        v-model="currentSetting"
+        :options="menuItems"
+        :can-deselect="false"
+        value-prop="title"
+        track-by="title"
+        label="title"
+        object
+        @update:modelValue="navigateToSetting"
+      />
+    </div>
+
+    <div class="flex">
+      <div class="hidden mt-1 xl:block min-w-[240px]">
+        <BaseList>
+          <BaseListItem
+            v-for="(menuItem, index) in menuItems"
+            :key="index"
+            :title="menuItem.title"
+            :to="menuItem.link"
+            :active="hasActiveUrl(menuItem.link)"
+            :index="index"
+            class="py-3"
+          >
+            <template #icon>
+              <BaseIcon :name="menuItem.icon" />
+            </template>
+          </BaseListItem>
+        </BaseList>
+      </div>
+
+      <div class="w-full overflow-hidden">
+        <RouterView />
+      </div>
+    </div>
+  </BasePage>
+</template>
+
+<script setup>
+import { ref, computed, watchEffect } from 'vue'
+import { useRoute, useRouter } from 'vue-router'
+import { useI18n } from 'vue-i18n'
+import BaseList from '@/scripts/components/list/BaseList.vue'
+import BaseListItem from '@/scripts/components/list/BaseListItem.vue'
+
+const { t } = useI18n()
+const route = useRoute()
+const router = useRouter()
+
+let currentSetting = ref({})
+
+const menuItems = computed(() => [
+  {
+    title: t('settings.mail.mail_config'),
+    link: '/admin/administration/settings/mail-configuration',
+    icon: 'EnvelopeIcon',
+  },
+  {
+    title: t('settings.menu_title.pdf_generation'),
+    link: '/admin/administration/settings/pdf-generation',
+    icon: 'DocumentIcon',
+  },
+  {
+    title: t('settings.menu_title.backup'),
+    link: '/admin/administration/settings/backup',
+    icon: 'CircleStackIcon',
+  },
+  {
+    title: t('settings.menu_title.update_app'),
+    link: '/admin/administration/settings/update-app',
+    icon: 'ArrowPathIcon',
+  },
+  {
+    title: t('settings.menu_title.file_disk'),
+    link: '/admin/administration/settings/file-disk',
+    icon: 'FolderIcon',
+  },
+])
+
+watchEffect(() => {
+  if (route.path === '/admin/administration/settings') {
+    router.push('/admin/administration/settings/mail-configuration')
+  }
+
+  const item = menuItems.value.find((item) => {
+    return route.path.indexOf(item.link) > -1
+  })
+
+  currentSetting.value = item
+})
+
+function hasActiveUrl(url) {
+  return route.path.indexOf(url) > -1
+}
+
+function navigateToSetting(setting) {
+  return router.push(setting.link)
+}
+</script>
diff --git a/resources/scripts/admin/views/administration/users/Edit.vue b/resources/scripts/admin/views/administration/users/Edit.vue
new file mode 100644
index 00000000..99e1504e
--- /dev/null
+++ b/resources/scripts/admin/views/administration/users/Edit.vue
@@ -0,0 +1,181 @@
+<template>
+  <BasePage v-if="!isLoading">
+    <BasePageHeader :title="$t('administration.users.edit_user')">
+      <BaseBreadcrumb>
+        <BaseBreadcrumbItem :title="$t('general.home')" to="dashboard" />
+        <BaseBreadcrumbItem
+          :title="$t('administration.users.title')"
+          to="/admin/administration/users"
+        />
+        <BaseBreadcrumbItem
+          :title="$t('administration.users.edit_user')"
+          to="#"
+          active
+        />
+      </BaseBreadcrumb>
+    </BasePageHeader>
+
+    <form @submit.prevent="submitForm">
+      <BaseCard class="mt-6">
+        <BaseInputGrid class="mt-5">
+          <BaseInputGroup
+            :label="$t('users.name')"
+            :error="v$.name.$error && v$.name.$errors[0].$message"
+            required
+          >
+            <BaseInput
+              v-model="formData.name"
+              :invalid="v$.name.$error"
+              @blur="v$.name.$touch()"
+            />
+          </BaseInputGroup>
+
+          <BaseInputGroup
+            :label="$t('general.email')"
+            :error="v$.email.$error && v$.email.$errors[0].$message"
+            required
+          >
+            <BaseInput
+              v-model="formData.email"
+              type="email"
+              :invalid="v$.email.$error"
+              @blur="v$.email.$touch()"
+            />
+          </BaseInputGroup>
+
+          <BaseInputGroup :label="$t('users.phone')">
+            <BaseInput v-model="formData.phone" type="text" />
+          </BaseInputGroup>
+
+          <BaseInputGroup
+            :label="$t('users.password')"
+            :error="v$.password.$error && v$.password.$errors[0].$message"
+          >
+            <BaseInput
+              v-model="formData.password"
+              type="password"
+              :invalid="v$.password.$error"
+              autocomplete="new-password"
+              @blur="v$.password.$touch()"
+            />
+          </BaseInputGroup>
+        </BaseInputGrid>
+
+        <div v-if="userData" class="mt-6 text-sm text-gray-500">
+          <p>
+            <strong>{{ $t('administration.users.role') }}:</strong>
+            {{ userData.role }}
+          </p>
+          <p v-if="userData.companies && userData.companies.length" class="mt-1">
+            <strong>{{ $t('navigation.companies') }}:</strong>
+            {{ userData.companies.map((c) => c.name).join(', ') }}
+          </p>
+        </div>
+
+        <BaseButton
+          :loading="isSaving"
+          :disabled="isSaving"
+          type="submit"
+          class="mt-6"
+        >
+          <template #left="slotProps">
+            <BaseIcon
+              v-if="!isSaving"
+              :class="slotProps.class"
+              name="ArrowDownOnSquareIcon"
+            />
+          </template>
+          {{ $t('general.save') }}
+        </BaseButton>
+      </BaseCard>
+    </form>
+  </BasePage>
+
+  <BaseGlobalLoader v-else />
+</template>
+
+<script setup>
+import { reactive, ref, computed, onMounted } from 'vue'
+import { useRoute, useRouter } from 'vue-router'
+import { useI18n } from 'vue-i18n'
+import { useAdministrationStore } from '@/scripts/admin/stores/administration'
+import { required, email, minLength, helpers } from '@vuelidate/validators'
+import { useVuelidate } from '@vuelidate/core'
+
+const route = useRoute()
+const router = useRouter()
+const administrationStore = useAdministrationStore()
+const { t } = useI18n()
+
+let isLoading = ref(true)
+let isSaving = ref(false)
+let userData = ref(null)
+
+const formData = reactive({
+  name: '',
+  email: '',
+  phone: '',
+  password: '',
+})
+
+const rules = computed(() => {
+  return {
+    name: {
+      required: helpers.withMessage(t('validation.required'), required),
+    },
+    email: {
+      required: helpers.withMessage(t('validation.required'), required),
+      email: helpers.withMessage(t('validation.email_incorrect'), email),
+    },
+    password: {
+      minLength: helpers.withMessage(
+        t('validation.password_min_length', { count: 8 }),
+        minLength(8)
+      ),
+    },
+  }
+})
+
+const v$ = useVuelidate(
+  rules,
+  computed(() => formData)
+)
+
+onMounted(async () => {
+  const response = await administrationStore.fetchUser(route.params.id)
+  const user = response.data.data
+  userData.value = user
+
+  formData.name = user.name
+  formData.email = user.email
+  formData.phone = user.phone || ''
+
+  isLoading.value = false
+})
+
+async function submitForm() {
+  v$.value.$touch()
+
+  if (v$.value.$invalid) {
+    return
+  }
+
+  isSaving.value = true
+
+  const data = {
+    name: formData.name,
+    email: formData.email,
+    phone: formData.phone,
+  }
+
+  if (formData.password) {
+    data.password = formData.password
+  }
+
+  await administrationStore.updateUser(route.params.id, data)
+
+  isSaving.value = false
+
+  router.push({ name: 'admin.users.index' })
+}
+</script>
diff --git a/resources/scripts/admin/views/administration/users/Index.vue b/resources/scripts/admin/views/administration/users/Index.vue
new file mode 100644
index 00000000..66d8fea4
--- /dev/null
+++ b/resources/scripts/admin/views/administration/users/Index.vue
@@ -0,0 +1,252 @@
+<template>
+  <BasePage>
+    <BasePageHeader :title="$t('administration.users.title')">
+      <BaseBreadcrumb>
+        <BaseBreadcrumbItem :title="$t('general.home')" to="dashboard" />
+        <BaseBreadcrumbItem
+          :title="$t('administration.users.title')"
+          to="#"
+          active
+        />
+      </BaseBreadcrumb>
+
+      <template #actions>
+        <div class="flex items-center justify-end space-x-5">
+          <BaseButton variant="primary-outline" @click="toggleFilter">
+            {{ $t('general.filter') }}
+            <template #right="slotProps">
+              <BaseIcon
+                v-if="!showFilters"
+                name="FunnelIcon"
+                :class="slotProps.class"
+              />
+              <BaseIcon v-else name="XMarkIcon" :class="slotProps.class" />
+            </template>
+          </BaseButton>
+        </div>
+      </template>
+    </BasePageHeader>
+
+    <BaseFilterWrapper :show="showFilters" class="mt-3" @clear="clearFilter">
+      <BaseInputGroup
+        :label="$t('users.name')"
+        class="flex-1 mt-2 mr-4"
+      >
+        <BaseInput
+          v-model="filters.display_name"
+          type="text"
+          name="name"
+          autocomplete="off"
+        />
+      </BaseInputGroup>
+
+      <BaseInputGroup :label="$t('general.email')" class="flex-1 mt-2 mr-4">
+        <BaseInput
+          v-model="filters.email"
+          type="text"
+          name="email"
+          autocomplete="off"
+        />
+      </BaseInputGroup>
+
+      <BaseInputGroup :label="$t('users.phone')" class="flex-1 mt-2">
+        <BaseInput
+          v-model="filters.phone"
+          type="text"
+          name="phone"
+          autocomplete="off"
+        />
+      </BaseInputGroup>
+    </BaseFilterWrapper>
+
+    <BaseEmptyPlaceholder
+      v-show="showEmptyScreen"
+      :title="$t('administration.users.no_users')"
+      :description="$t('administration.users.list_description')"
+    >
+      <BaseIcon
+        name="UsersIcon"
+        class="mt-5 mb-4 h-16 w-16 text-gray-300"
+      />
+    </BaseEmptyPlaceholder>
+
+    <div v-show="!showEmptyScreen" class="relative table-container">
+      <BaseTable
+        ref="table"
+        :data="fetchData"
+        :columns="userTableColumns"
+        class="mt-3"
+      >
+        <template #cell-name="{ row }">
+          <router-link
+            :to="{
+              name: 'admin.users.edit',
+              params: { id: row.data.id },
+            }"
+            class="font-medium text-primary-500"
+          >
+            {{ row.data.name }}
+          </router-link>
+        </template>
+
+        <template #cell-email="{ row }">
+          <span>{{ row.data.email }}</span>
+        </template>
+
+        <template #cell-role="{ row }">
+          <span
+            class="inline-flex items-center px-2.5 py-0.5 rounded-full text-xs font-medium"
+            :class="getRoleBadgeClass(row.data.role)"
+          >
+            {{ row.data.role }}
+          </span>
+        </template>
+
+        <template #cell-companies="{ row }">
+          <div v-if="row.data.companies && row.data.companies.length" class="flex flex-wrap gap-1">
+            <span
+              v-for="company in row.data.companies.slice(0, 3)"
+              :key="company.id"
+              class="inline-flex items-center px-2 py-0.5 rounded text-xs font-medium bg-gray-100 text-gray-700"
+            >
+              {{ company.name }}
+            </span>
+            <span
+              v-if="row.data.companies.length > 3"
+              class="inline-flex items-center px-2 py-0.5 rounded text-xs font-medium bg-gray-100 text-gray-500"
+            >
+              +{{ row.data.companies.length - 3 }}
+            </span>
+          </div>
+          <span v-else class="text-gray-400">-</span>
+        </template>
+
+        <template #cell-actions="{ row }">
+          <AdminUserDropdown
+            :row="row.data"
+            :table="table"
+            :load-data="refreshTable"
+          />
+        </template>
+      </BaseTable>
+    </div>
+  </BasePage>
+</template>
+
+<script setup>
+import { computed, ref, reactive, watch } from 'vue'
+import { useI18n } from 'vue-i18n'
+import { useAdministrationStore } from '@/scripts/admin/stores/administration'
+import AdminUserDropdown from '@/scripts/admin/components/dropdowns/AdminUserIndexDropdown.vue'
+
+const administrationStore = useAdministrationStore()
+const { t } = useI18n()
+
+let showFilters = ref(false)
+let isFetchingInitialData = ref(true)
+let table = ref(null)
+
+let filters = reactive({
+  display_name: '',
+  email: '',
+  phone: '',
+})
+
+const userTableColumns = computed(() => {
+  return [
+    {
+      key: 'name',
+      label: t('users.name'),
+      thClass: 'extra',
+      tdClass: 'font-medium text-gray-900',
+    },
+    {
+      key: 'email',
+      label: t('general.email'),
+    },
+    {
+      key: 'role',
+      label: t('administration.users.role'),
+      sortable: false,
+    },
+    {
+      key: 'companies',
+      label: t('navigation.companies'),
+      sortable: false,
+    },
+    {
+      key: 'actions',
+      tdClass: 'text-right text-sm font-medium',
+      sortable: false,
+    },
+  ]
+})
+
+const showEmptyScreen = computed(() => {
+  return !administrationStore.totalUsers && !isFetchingInitialData.value
+})
+
+watch(
+  filters,
+  () => {
+    refreshTable()
+  },
+  { deep: true }
+)
+
+function refreshTable() {
+  table.value && table.value.refresh()
+}
+
+async function fetchData({ page, filter, sort }) {
+  let data = {
+    display_name: filters.display_name || '',
+    email: filters.email || '',
+    phone: filters.phone || '',
+    orderByField: sort.fieldName || 'created_at',
+    orderBy: sort.order || 'desc',
+    page,
+  }
+
+  isFetchingInitialData.value = true
+
+  let response = await administrationStore.fetchUsers(data)
+
+  isFetchingInitialData.value = false
+
+  return {
+    data: response.data.data,
+    pagination: {
+      totalPages: response.data.meta.last_page,
+      currentPage: page,
+      totalCount: response.data.meta.total,
+      limit: 10,
+    },
+  }
+}
+
+function getRoleBadgeClass(role) {
+  switch (role) {
+    case 'super admin':
+      return 'bg-purple-100 text-purple-800'
+    case 'admin':
+      return 'bg-blue-100 text-blue-800'
+    default:
+      return 'bg-gray-100 text-gray-800'
+  }
+}
+
+function clearFilter() {
+  filters.display_name = ''
+  filters.email = ''
+  filters.phone = ''
+}
+
+function toggleFilter() {
+  if (showFilters.value) {
+    clearFilter()
+  }
+
+  showFilters.value = !showFilters.value
+}
+</script>
diff --git a/resources/scripts/admin/views/settings/CompanyMailConfigSetting.vue b/resources/scripts/admin/views/settings/CompanyMailConfigSetting.vue
new file mode 100644
index 00000000..c739478d
--- /dev/null
+++ b/resources/scripts/admin/views/settings/CompanyMailConfigSetting.vue
@@ -0,0 +1,122 @@
+<template>
+  <MailTestModal :store-type="'company'" />
+
+  <BaseSettingCard
+    :title="$t('settings.mail.company_mail_config')"
+    :description="$t('settings.mail.company_mail_config_desc')"
+  >
+    <div class="mt-8">
+      <BaseSwitchSection
+        v-model="useCustomMailConfig"
+        :title="$t('settings.mail.use_custom_mail_config')"
+        :description="$t('settings.mail.use_custom_mail_config_desc')"
+      />
+    </div>
+
+    <div v-if="useCustomMailConfig && companyMailStore.mailConfigData" class="mt-8">
+      <component
+        :is="mailDriver"
+        :config-data="companyMailStore.mailConfigData"
+        :is-saving="isSaving"
+        :mail-drivers="companyMailStore.mail_drivers"
+        :is-fetching-initial-data="isFetchingInitialData"
+        @on-change-driver="(val) => changeDriver(val)"
+        @submit-data="saveEmailConfig"
+      >
+        <BaseButton
+          variant="primary-outline"
+          type="button"
+          class="ml-2"
+          :content-loading="isFetchingInitialData"
+          @click="openMailTestModal"
+        >
+          {{ $t('general.test_mail_conf') }}
+        </BaseButton>
+      </component>
+    </div>
+
+    <div v-if="!useCustomMailConfig" class="mt-4 p-4 rounded-md bg-gray-50 text-sm text-gray-500">
+      {{ $t('settings.mail.using_global_mail_config') }}
+    </div>
+  </BaseSettingCard>
+</template>
+
+<script setup>
+import Smtp from '@/scripts/admin/views/settings/mail-driver/SmtpMailDriver.vue'
+import Mailgun from '@/scripts/admin/views/settings/mail-driver/MailgunMailDriver.vue'
+import Ses from '@/scripts/admin/views/settings/mail-driver/SesMailDriver.vue'
+import Basic from '@/scripts/admin/views/settings/mail-driver/BasicMailDriver.vue'
+import { ref, computed, watch } from 'vue'
+import { useCompanyMailStore } from '@/scripts/admin/stores/company-mail'
+import { useModalStore } from '@/scripts/stores/modal'
+import MailTestModal from '@/scripts/admin/components/modal-components/MailTestModal.vue'
+import { useI18n } from 'vue-i18n'
+
+let isSaving = ref(false)
+let isFetchingInitialData = ref(false)
+
+const companyMailStore = useCompanyMailStore()
+const modalStore = useModalStore()
+const { t } = useI18n()
+
+const useCustomMailConfig = ref(false)
+
+loadData()
+
+async function loadData() {
+  isFetchingInitialData.value = true
+  await companyMailStore.fetchMailDrivers()
+  await companyMailStore.fetchMailConfig()
+  useCustomMailConfig.value =
+    companyMailStore.mailConfigData?.use_custom_mail_config === 'YES'
+  isFetchingInitialData.value = false
+}
+
+function changeDriver(value) {
+  companyMailStore.mail_driver = value
+  companyMailStore.mailConfigData.mail_driver = value
+}
+
+const mailDriver = computed(() => {
+  if (companyMailStore.mail_driver === 'smtp') return Smtp
+  if (companyMailStore.mail_driver === 'mailgun') return Mailgun
+  if (companyMailStore.mail_driver === 'sendmail') return Basic
+  if (companyMailStore.mail_driver === 'ses') return Ses
+  if (companyMailStore.mail_driver === 'mail') return Basic
+  return Smtp
+})
+
+watch(useCustomMailConfig, async (newVal, oldVal) => {
+  if (oldVal === undefined) return
+
+  if (!newVal) {
+    isSaving.value = true
+    await companyMailStore.updateMailConfig({
+      use_custom_mail_config: 'NO',
+      mail_driver: '',
+    })
+    isSaving.value = false
+  }
+})
+
+async function saveEmailConfig(value) {
+  try {
+    isSaving.value = true
+    await companyMailStore.updateMailConfig({
+      ...value,
+      use_custom_mail_config: 'YES',
+    })
+    isSaving.value = false
+  } catch (e) {
+    isSaving.value = false
+  }
+}
+
+function openMailTestModal() {
+  modalStore.openModal({
+    title: t('general.test_mail_conf'),
+    componentName: 'MailTestModal',
+    size: 'sm',
+  })
+}
+</script>
diff --git a/resources/scripts/admin/views/settings/FileDiskSetting.vue b/resources/scripts/admin/views/settings/FileDiskSetting.vue
index 354fa481..abe106d1 100644
--- a/resources/scripts/admin/views/settings/FileDiskSetting.vue
+++ b/resources/scripts/admin/views/settings/FileDiskSetting.vue
@@ -84,7 +84,7 @@
 
 <script setup>
 import { useDiskStore } from '@/scripts/admin/stores/disk'
-import { useCompanyStore } from '@/scripts/admin/stores/company'
+import { useGlobalStore } from '@/scripts/admin/stores/global'
 import { useDialogStore } from '@/scripts/stores/dialog'
 import { useModalStore } from '@/scripts/stores/modal'
 import { ref, computed, reactive, onMounted, inject } from 'vue'
@@ -95,7 +95,7 @@ const utils = inject('utils')
 
 const modalStore = useModalStore()
 const diskStore = useDiskStore()
-const companyStore = useCompanyStore()
+const globalStore = useGlobalStore()
 const dialogStore = useDialogStore()
 const { t } = useI18n()
 
@@ -139,7 +139,7 @@ const fileDiskColumns = computed(() => {
   ]
 })
 
-const savePdfToDisk = ref(companyStore.selectedCompanySettings.save_pdf_to_disk)
+const savePdfToDisk = ref(globalStore.globalSettings?.save_pdf_to_disk || 'NO')
 
 const savePdfToDiskField = computed({
   get: () => {
@@ -156,7 +156,7 @@ const savePdfToDiskField = computed({
 
     savePdfToDisk.value = value
 
-    await companyStore.updateCompanySettings({
+    await globalStore.updateGlobalSettings({
       data,
       message: 'general.setting_updated',
     })
diff --git a/resources/scripts/router/index.js b/resources/scripts/router/index.js
index 4e52f2b6..00bea52e 100644
--- a/resources/scripts/router/index.js
+++ b/resources/scripts/router/index.js
@@ -27,6 +27,10 @@ router.beforeEach((to) => {
     if (!userStore.hasAbilities(ability)) {
       return { name: 'account.settings' }
     }
+  } else if (to.meta.isSuperAdmin && isAppLoaded) {
+    if (!userStore.currentUser.is_super_admin) {
+      return { name: 'dashboard' }
+    }
   } else if (to.meta.isOwner && isAppLoaded) {
     if (!userStore.currentUser.is_owner) {
       return { name: 'dashboard' }
diff --git a/routes/api.php b/routes/api.php
index da639a33..b8f3d1fa 100644
--- a/routes/api.php
+++ b/routes/api.php
@@ -70,6 +70,7 @@ use App\Http\Controllers\V1\Admin\Role\AbilitiesController;
 use App\Http\Controllers\V1\Admin\Role\RolesController;
 use App\Http\Controllers\V1\Admin\Settings\CompanyController;
 use App\Http\Controllers\V1\Admin\Settings\CompanyCurrencyCheckTransactionsController;
+use App\Http\Controllers\V1\Admin\Settings\CompanyMailConfigurationController;
 use App\Http\Controllers\V1\Admin\Settings\DiskController;
 use App\Http\Controllers\V1\Admin\Settings\GetCompanyMailConfigurationController;
 use App\Http\Controllers\V1\Admin\Settings\GetCompanySettingsController;
@@ -187,6 +188,25 @@ Route::prefix('/v1')->group(function () {
         Route::post('/finish', FinishController::class);
     });
 
+    // Super Admin
+    // ----------------------------------
+
+    Route::middleware(['auth:sanctum', 'super-admin'])->prefix('super-admin')->group(function () {
+        Route::get('companies', [App\Http\Controllers\V1\SuperAdmin\CompaniesController::class, 'index']);
+        Route::get('companies/{company}', [App\Http\Controllers\V1\SuperAdmin\CompaniesController::class, 'show']);
+        Route::put('companies/{company}', [App\Http\Controllers\V1\SuperAdmin\CompaniesController::class, 'update']);
+
+        Route::get('users', [App\Http\Controllers\V1\SuperAdmin\UsersController::class, 'index']);
+        Route::get('users/{user}', [App\Http\Controllers\V1\SuperAdmin\UsersController::class, 'show']);
+        Route::put('users/{user}', [App\Http\Controllers\V1\SuperAdmin\UsersController::class, 'update']);
+        Route::post('users/{user}/impersonate', [App\Http\Controllers\V1\SuperAdmin\UsersController::class, 'impersonate']);
+    });
+
+    // Stop impersonation - uses auth:sanctum only (the impersonated user's token, not super-admin)
+    Route::middleware(['auth:sanctum'])->prefix('super-admin')->group(function () {
+        Route::post('stop-impersonating', [App\Http\Controllers\V1\SuperAdmin\UsersController::class, 'stopImpersonating']);
+    });
+
     Route::middleware(['auth:sanctum', 'company'])->group(function () {
         Route::middleware(['bouncer'])->group(function () {
 
@@ -398,6 +418,10 @@ Route::prefix('/v1')->group(function () {
 
             Route::get('/company/mail/config', GetCompanyMailConfigurationController::class);
 
+            Route::get('/company/mail/company-config', [CompanyMailConfigurationController::class, 'getMailConfig']);
+            Route::post('/company/mail/company-config', [CompanyMailConfigurationController::class, 'saveMailConfig']);
+            Route::post('/company/mail/company-test', [CompanyMailConfigurationController::class, 'testMailConfig']);
+
             // PDF Generation
             // ----------------------------------