diff --git a/app/Console/Commands/MigrateLegacyAgencyNames.php b/app/Console/Commands/MigrateLegacyAgencyNames.php
new file mode 100644
index 00000000..7c25b382
--- /dev/null
+++ b/app/Console/Commands/MigrateLegacyAgencyNames.php
@@ -0,0 +1,131 @@
+<?php
+
+namespace App\Console\Commands;
+
+use App\Enums\CompanyType;
+use App\Models\Company;
+use App\Models\User;
+use App\Scopes\PortalScope;
+use Illuminate\Console\Command;
+use Illuminate\Support\Facades\Storage;
+
+/**
+ * Übernimmt die Namen der Legacy-Agentur-Firmen (companies.type = agency)
+ * in das Profilfeld users.agency_name des jeweiligen Owners — Teil des
+ * Umbaus Agentur-Attribution → User-Profil (dev/agentur-attribution/
+ * entwicklungsplan.md, A2). Läuft im Go-Live NACH dem Firmen-/User-Import
+ * und VOR companies:retire-agency-type. Wiederholbar: bereits gesetzte
+ * agency_name-Werte werden nie überschrieben.
+ *
+ * Verwendung:
+ *   php artisan legacy:migrate-agency-names --dry-run
+ *   php artisan legacy:migrate-agency-names
+ */
+class MigrateLegacyAgencyNames extends Command
+{
+    protected $signature = 'legacy:migrate-agency-names
+                            {--dry-run : Nur anzeigen und Report schreiben, keine User ändern}';
+
+    protected $description = 'Übernimmt Namen der Legacy-Agentur-Firmen in das Profilfeld users.agency_name.';
+
+    public function handle(): int
+    {
+        $dryRun = (bool) $this->option('dry-run');
+
+        if ($dryRun) {
+            $this->warn('[DRY-RUN] Kein tatsächlicher Schreibvorgang.');
+        }
+
+        // Bewusst ohne is_active-Filter: die Attributions-Zeile hat auch
+        // inaktive Agentur-Firmen angezeigt; dieses Verhalten bleibt erhalten.
+        $agencies = Company::withoutGlobalScope(PortalScope::class)
+            ->where('type', CompanyType::Agency)
+            ->get(['id', 'portal', 'owner_user_id', 'name', 'is_active', 'updated_at']);
+
+        $report = [
+            'generated_at' => now()->toIso8601String(),
+            'dry_run' => $dryRun,
+            'summary' => [],
+            'multiple_names' => [],
+            'skipped_existing' => [],
+            'ownerless' => [],
+            'missing_owner' => [],
+        ];
+
+        foreach ($agencies->whereNull('owner_user_id') as $orphan) {
+            $report['ownerless'][] = [
+                'company_id' => $orphan->id,
+                'portal' => $orphan->portal?->value,
+                'name' => $orphan->name,
+            ];
+        }
+
+        $byOwner = $agencies->whereNotNull('owner_user_id')->groupBy('owner_user_id');
+        $users = User::withTrashed()->whereIn('id', $byOwner->keys())->get()->keyBy('id');
+
+        $migrated = 0;
+
+        foreach ($byOwner as $userId => $companies) {
+            $user = $users->get($userId);
+
+            if ($user === null) {
+                $report['missing_owner'][] = [
+                    'user_id' => $userId,
+                    'company_ids' => $companies->pluck('id')->all(),
+                ];
+
+                continue;
+            }
+
+            /** @var Company $winner Zuletzt aktualisierter Datensatz gewinnt (Regel Mehrfach-Fälle). */
+            $winner = $companies->sortByDesc('updated_at')->first();
+            $variants = $companies->pluck('name')->unique()->values();
+
+            if ($variants->count() > 1) {
+                $report['multiple_names'][] = [
+                    'user_id' => $user->id,
+                    'email' => $user->email,
+                    'chosen' => $winner->name,
+                    'variants' => $variants->all(),
+                ];
+            }
+
+            if (filled($user->agency_name)) {
+                $report['skipped_existing'][] = [
+                    'user_id' => $user->id,
+                    'email' => $user->email,
+                    'existing' => $user->agency_name,
+                    'candidate' => $winner->name,
+                ];
+
+                continue;
+            }
+
+            if (! $dryRun) {
+                $user->update(['agency_name' => $winner->name]);
+            }
+
+            $migrated++;
+        }
+
+        $report['summary'] = [
+            'agency_companies' => $agencies->count(),
+            'users_migrated' => $migrated,
+            'users_skipped_existing' => count($report['skipped_existing']),
+            'users_multiple_names' => count($report['multiple_names']),
+            'companies_ownerless' => count($report['ownerless']),
+            'owners_missing' => count($report['missing_owner']),
+        ];
+
+        $this->table(
+            ['Agentur-Firmen', 'User migriert', 'Bereits gesetzt', 'Mehrfach-Namen', 'Ohne Owner', 'Owner fehlt'],
+            [array_values($report['summary'])],
+        );
+
+        $path = 'migration/agency-names-'.now()->format('Ymd-His').'.json';
+        Storage::disk('local')->put($path, json_encode($report, JSON_PRETTY_PRINT | JSON_UNESCAPED_UNICODE));
+        $this->line("Report geschrieben: storage/app/private/{$path}");
+
+        return self::SUCCESS;
+    }
+}
diff --git a/dev/release/deploy-runbook.md b/dev/release/deploy-runbook.md
index 864d4f96..64071f35 100644
--- a/dev/release/deploy-runbook.md
+++ b/dev/release/deploy-runbook.md
@@ -130,10 +130,14 @@ Events: die Cashier-Defaults (Subscriptions, Invoices, Payment-Intents).
    `legacy:import` → `legacy:fix-timestamps` → `legacy:migrate-media`
    (bzw. `legacy:sync-company-logos` / `legacy:sync-press-release-images`)
    → `legacy:archive-invoices` → `legacy:grandfather-subscriptions`.
-2. Ersten Admin-User anlegen (Prod hat keine Demo-User):
+2. Agentur-Attribution (läuft NACH dem Firmen-/User-Import aus Schritt 1):
+   `legacy:migrate-agency-names` — erst mit `--dry-run` (Report unter
+   `storage/app/private/migration/` prüfen, insbes. Mehrfach-Namen und
+   Owner-lose Agentur-Firmen), dann scharf. Nie überschreibend.
+3. Ersten Admin-User anlegen (Prod hat keine Demo-User):
    Registrierung + Rolle via Tinker/DB oder dedizierter Befehl.
-3. Favicons je Domain deployen (Platzhalter-Generator reicht nicht) [EXTERN R5.4].
-4. Smoke-Test: siehe Abschnitt 8.
+4. Favicons je Domain deployen (Platzhalter-Generator reicht nicht) [EXTERN R5.4].
+5. Smoke-Test: siehe Abschnitt 8.
 
 ## 8. Smoke-Test nach jedem Deploy
 
diff --git a/tests/Feature/MigrateLegacyAgencyNamesTest.php b/tests/Feature/MigrateLegacyAgencyNamesTest.php
new file mode 100644
index 00000000..d8ea761a
--- /dev/null
+++ b/tests/Feature/MigrateLegacyAgencyNamesTest.php
@@ -0,0 +1,120 @@
+<?php
+
+use App\Enums\CompanyType;
+use App\Enums\Portal;
+use App\Models\Company;
+use App\Models\User;
+use Illuminate\Support\Facades\Storage;
+use Tests\TestCase;
+
+beforeEach(function (): void {
+    /** @var TestCase $this */
+    Storage::fake('local');
+});
+
+test('copies the agency name of a single agency company to the owner profile', function () {
+    /** @var TestCase $this */
+    $user = User::factory()->create();
+    Company::factory()->create([
+        'portal' => Portal::Presseecho,
+        'type' => CompanyType::Agency,
+        'name' => 'connektar.de Presseverteiler',
+        'owner_user_id' => $user->id,
+    ]);
+
+    $this->artisan('legacy:migrate-agency-names')->assertSuccessful();
+
+    expect($user->fresh()->agency_name)->toBe('connektar.de Presseverteiler');
+});
+
+test('with multiple differently named agency companies the most recently updated wins', function () {
+    /** @var TestCase $this */
+    $user = User::factory()->create();
+    Company::factory()->create([
+        'portal' => Portal::Presseecho,
+        'type' => CompanyType::Agency,
+        'name' => 'Alter Verteilername',
+        'owner_user_id' => $user->id,
+        'updated_at' => now()->subYears(2),
+    ]);
+    Company::factory()->create([
+        'portal' => Portal::Businessportal24,
+        'type' => CompanyType::Agency,
+        'name' => 'Neuer Verteilername',
+        'owner_user_id' => $user->id,
+        'updated_at' => now()->subDay(),
+    ]);
+
+    $this->artisan('legacy:migrate-agency-names')->assertSuccessful();
+
+    expect($user->fresh()->agency_name)->toBe('Neuer Verteilername');
+
+    $reportFile = collect(Storage::disk('local')->allFiles('migration'))->first();
+    $report = json_decode(Storage::disk('local')->get($reportFile), true);
+    expect($report['multiple_names'])->toHaveCount(1)
+        ->and($report['multiple_names'][0]['variants'])
+        ->toContain('Alter Verteilername', 'Neuer Verteilername');
+});
+
+test('never overwrites an already set agency name', function () {
+    /** @var TestCase $this */
+    $user = User::factory()->withAgency('Manuell gepflegter Name')->create();
+    Company::factory()->create([
+        'portal' => Portal::Presseecho,
+        'type' => CompanyType::Agency,
+        'name' => 'Legacy-Name',
+        'owner_user_id' => $user->id,
+    ]);
+
+    $this->artisan('legacy:migrate-agency-names')->assertSuccessful();
+
+    expect($user->fresh()->agency_name)->toBe('Manuell gepflegter Name');
+});
+
+test('only reports agency companies without an owner', function () {
+    /** @var TestCase $this */
+    $orphan = Company::factory()->create([
+        'portal' => Portal::Presseecho,
+        'type' => CompanyType::Agency,
+        'name' => 'Verwaiste Agentur',
+        'owner_user_id' => null,
+    ]);
+
+    $this->artisan('legacy:migrate-agency-names')->assertSuccessful();
+
+    $reportFile = collect(Storage::disk('local')->allFiles('migration'))->first();
+    $report = json_decode(Storage::disk('local')->get($reportFile), true);
+    expect($report['ownerless'])->toHaveCount(1)
+        ->and($report['ownerless'][0]['company_id'])->toBe($orphan->id);
+});
+
+test('dry-run writes nothing but still produces a report', function () {
+    /** @var TestCase $this */
+    $user = User::factory()->create();
+    Company::factory()->create([
+        'portal' => Portal::Presseecho,
+        'type' => CompanyType::Agency,
+        'name' => 'connektar.de Presseverteiler',
+        'owner_user_id' => $user->id,
+    ]);
+
+    $this->artisan('legacy:migrate-agency-names', ['--dry-run' => true])->assertSuccessful();
+
+    expect($user->fresh()->agency_name)->toBeNull()
+        ->and(Storage::disk('local')->allFiles('migration'))->toHaveCount(1);
+});
+
+test('ignores companies that are not agencies', function () {
+    /** @var TestCase $this */
+    $user = User::factory()->create();
+    Company::factory()->create([
+        'portal' => Portal::Presseecho,
+        'type' => CompanyType::Company,
+        'name' => 'Echte Firma GmbH',
+        'owner_user_id' => $user->id,
+    ]);
+
+    $this->artisan('legacy:migrate-agency-names')->assertSuccessful();
+
+    expect($user->fresh()->agency_name)->toBeNull();
+});