diff --git a/Boot.php b/Boot.php
index 1b72204..87fe383 100644
--- a/Boot.php
+++ b/Boot.php
@@ -99,6 +99,7 @@ class Boot extends ServiceProvider
         $event->command(Console\CheckUpdatesCommand::class);
         $event->command(Console\SendDigestsCommand::class);
         $event->command(Console\SyncForgeCommand::class);
+        $event->command(Console\SyncAltumVersionsCommand::class);
     }
 
     /**
diff --git a/Console/SyncAltumVersionsCommand.php b/Console/SyncAltumVersionsCommand.php
new file mode 100644
index 0000000..ae25c07
--- /dev/null
+++ b/Console/SyncAltumVersionsCommand.php
@@ -0,0 +1,226 @@
+<?php
+
+/*
+ * Core PHP Framework
+ *
+ * Licensed under the European Union Public Licence (EUPL) v1.2.
+ * See LICENSE file for details.
+ */
+
+declare(strict_types=1);
+
+namespace Core\Mod\Uptelligence\Console;
+
+use Core\Mod\Uptelligence\Models\Vendor;
+use Illuminate\Console\Command;
+
+/**
+ * Sync deployed AltumCode product and plugin versions from source files on disk.
+ *
+ * Reads PRODUCT_VERSION from each product's init.php and plugin versions from
+ * config.php files, then updates the uptelligence_vendors table to reflect
+ * what is actually deployed.
+ */
+class SyncAltumVersionsCommand extends Command
+{
+    protected $signature = 'uptelligence:sync-altum-versions
+                            {--dry-run : Show what would change without writing to the database}
+                            {--path= : Base path to the SaaS services directory}';
+
+    protected $description = 'Sync deployed AltumCode product and plugin versions from source files';
+
+    /**
+     * Product slug => relative path from base to the product directory.
+     *
+     * @var array<string, string>
+     */
+    protected array $productPaths = [
+        '66analytics' => '66analytics/package/product',
+        '66biolinks' => '66biolinks/package/product',
+        '66pusher' => '66pusher/package/product',
+        '66socialproof' => '66socialproof/package/product',
+    ];
+
+    public function handle(): int
+    {
+        $basePath = $this->option('path')
+            ?? env('SAAS_SERVICES_PATH', base_path('../lthn/saas/services'));
+
+        $dryRun = (bool) $this->option('dry-run');
+
+        if (! is_dir($basePath)) {
+            $this->error("Base path does not exist: {$basePath}");
+
+            return self::FAILURE;
+        }
+
+        $this->info('Syncing AltumCode versions from: ' . $basePath);
+        if ($dryRun) {
+            $this->warn('[DRY RUN] No changes will be written to the database.');
+        }
+        $this->newLine();
+
+        $results = [];
+
+        // Sync product versions
+        foreach ($this->productPaths as $slug => $relativePath) {
+            $results[] = $this->syncProductVersion($basePath, $slug, $relativePath, $dryRun);
+        }
+
+        // Sync plugin versions from the canonical source (66biolinks plugins directory)
+        $pluginsDir = $basePath . '/' . $this->productPaths['66biolinks'] . '/plugins';
+        $results = array_merge($results, $this->syncPluginVersions($pluginsDir, $dryRun));
+
+        // Display results table
+        $this->table(
+            ['Vendor', 'Old Version', 'New Version', 'Status'],
+            $results,
+        );
+
+        // Summary
+        $this->newLine();
+        $updated = collect($results)->filter(fn (array $r) => in_array($r[3], ['UPDATED', 'WOULD UPDATE']))->count();
+        $current = collect($results)->filter(fn (array $r) => $r[3] === 'current')->count();
+        $skipped = collect($results)->filter(fn (array $r) => $r[3] === 'SKIPPED')->count();
+
+        $prefix = $dryRun ? '[DRY RUN] ' : '';
+        $this->info("{$prefix}Sync complete: {$updated} updated, {$current} current, {$skipped} skipped.");
+
+        return self::SUCCESS;
+    }
+
+    /**
+     * Sync a single product's version from its init.php file.
+     *
+     * @return array{0: string, 1: string, 2: string, 3: string}
+     */
+    protected function syncProductVersion(string $basePath, string $slug, string $relativePath, bool $dryRun): array
+    {
+        $initFile = $basePath . '/' . $relativePath . '/app/init.php';
+
+        if (! file_exists($initFile)) {
+            return [$slug, '-', '-', 'SKIPPED'];
+        }
+
+        $version = $this->parseProductVersion($initFile);
+
+        if ($version === null) {
+            return [$slug, '-', '-', 'SKIPPED'];
+        }
+
+        return $this->updateVendorVersion($slug, $version, $dryRun);
+    }
+
+    /**
+     * Sync plugin versions from the plugins directory.
+     *
+     * @return array<int, array{0: string, 1: string, 2: string, 3: string}>
+     */
+    protected function syncPluginVersions(string $pluginsDir, bool $dryRun): array
+    {
+        $results = [];
+
+        if (! is_dir($pluginsDir)) {
+            $this->warn("Plugins directory not found: {$pluginsDir}");
+
+            return $results;
+        }
+
+        $dirs = scandir($pluginsDir);
+
+        if ($dirs === false) {
+            return $results;
+        }
+
+        foreach ($dirs as $pluginId) {
+            if ($pluginId === '.' || $pluginId === '..') {
+                continue;
+            }
+
+            $configFile = $pluginsDir . '/' . $pluginId . '/config.php';
+
+            if (! file_exists($configFile)) {
+                continue;
+            }
+
+            $version = $this->parsePluginVersion($configFile);
+
+            if ($version === null) {
+                continue;
+            }
+
+            $slug = 'altum-plugin-' . $pluginId;
+            $results[] = $this->updateVendorVersion($slug, $version, $dryRun);
+        }
+
+        return $results;
+    }
+
+    /**
+     * Parse product version from an init.php file.
+     *
+     * Looks for: define('PRODUCT_VERSION', '65.0.0');
+     */
+    protected function parseProductVersion(string $filePath): ?string
+    {
+        $contents = file_get_contents($filePath);
+
+        if ($contents === false) {
+            return null;
+        }
+
+        if (preg_match("/define\(\s*'PRODUCT_VERSION'\s*,\s*'([^']+)'\s*\)/", $contents, $matches)) {
+            return $matches[1];
+        }
+
+        return null;
+    }
+
+    /**
+     * Parse plugin version from a config.php file.
+     *
+     * Looks for: 'version' => '2.0.0',
+     */
+    protected function parsePluginVersion(string $filePath): ?string
+    {
+        $contents = file_get_contents($filePath);
+
+        if ($contents === false) {
+            return null;
+        }
+
+        if (preg_match("/'version'\s*=>\s*'([^']+)'/", $contents, $matches)) {
+            return $matches[1];
+        }
+
+        return null;
+    }
+
+    /**
+     * Update a vendor's current_version in the database.
+     *
+     * @return array{0: string, 1: string, 2: string, 3: string}
+     */
+    protected function updateVendorVersion(string $slug, string $newVersion, bool $dryRun): array
+    {
+        $vendor = Vendor::where('slug', $slug)->first();
+
+        if (! $vendor) {
+            return [$slug, '-', $newVersion, 'SKIPPED'];
+        }
+
+        $oldVersion = $vendor->current_version ?? '0.0.0';
+
+        if ($oldVersion === $newVersion) {
+            return [$slug, $oldVersion, $newVersion, 'current'];
+        }
+
+        if (! $dryRun) {
+            $vendor->update(['current_version' => $newVersion]);
+
+            return [$slug, $oldVersion, $newVersion, 'UPDATED'];
+        }
+
+        return [$slug, $oldVersion, $newVersion, 'WOULD UPDATE'];
+    }
+}
diff --git a/tests/Unit/SyncAltumVersionsCommandTest.php b/tests/Unit/SyncAltumVersionsCommandTest.php
new file mode 100644
index 0000000..e73f438
--- /dev/null
+++ b/tests/Unit/SyncAltumVersionsCommandTest.php
@@ -0,0 +1,153 @@
+<?php
+
+declare(strict_types=1);
+
+use Core\Mod\Uptelligence\Console\SyncAltumVersionsCommand;
+use Core\Mod\Uptelligence\Database\Seeders\AltumCodeVendorSeeder;
+use Core\Mod\Uptelligence\Models\Vendor;
+use Illuminate\Foundation\Testing\RefreshDatabase;
+
+uses(RefreshDatabase::class);
+
+beforeEach(function () {
+    // Register command directly — the ConsoleBooting event doesn't fire in Testbench
+    $this->app->make(\Illuminate\Contracts\Console\Kernel::class)
+        ->registerCommand($this->app->make(SyncAltumVersionsCommand::class));
+
+    (new AltumCodeVendorSeeder)->run();
+});
+
+it('updates product versions from init.php files', function () {
+    $basePath = createMockServicesDirectory([
+        '66analytics' => '42.0.0',
+        '66biolinks' => '43.0.0',
+    ]);
+
+    $this->artisan('uptelligence:sync-altum-versions', ['--path' => $basePath])
+        ->assertSuccessful();
+
+    expect(Vendor::where('slug', '66analytics')->first()->current_version)->toBe('42.0.0')
+        ->and(Vendor::where('slug', '66biolinks')->first()->current_version)->toBe('43.0.0');
+});
+
+it('updates plugin versions from config.php files', function () {
+    $basePath = createMockServicesDirectory(
+        productVersions: ['66biolinks' => '43.0.0'],
+        pluginVersions: ['affiliate' => '2.5.0', 'teams' => '3.1.0'],
+    );
+
+    $this->artisan('uptelligence:sync-altum-versions', ['--path' => $basePath])
+        ->assertSuccessful();
+
+    expect(Vendor::where('slug', 'altum-plugin-affiliate')->first()->current_version)->toBe('2.5.0')
+        ->and(Vendor::where('slug', 'altum-plugin-teams')->first()->current_version)->toBe('3.1.0');
+});
+
+it('shows WOULD UPDATE in dry-run mode without writing', function () {
+    $basePath = createMockServicesDirectory(['66analytics' => '99.0.0']);
+
+    $this->artisan('uptelligence:sync-altum-versions', [
+        '--path' => $basePath,
+        '--dry-run' => true,
+    ])->assertSuccessful();
+
+    // Version should NOT have changed
+    expect(Vendor::where('slug', '66analytics')->first()->current_version)->toBe('0.0.0');
+});
+
+it('shows current status when version matches', function () {
+    Vendor::where('slug', '66analytics')->update(['current_version' => '42.0.0']);
+
+    $basePath = createMockServicesDirectory(['66analytics' => '42.0.0']);
+
+    $this->artisan('uptelligence:sync-altum-versions', ['--path' => $basePath])
+        ->assertSuccessful();
+
+    expect(Vendor::where('slug', '66analytics')->first()->current_version)->toBe('42.0.0');
+});
+
+it('skips products whose init.php does not exist', function () {
+    // Create directory structure but only for one product
+    $basePath = createMockServicesDirectory(['66analytics' => '42.0.0']);
+
+    $this->artisan('uptelligence:sync-altum-versions', ['--path' => $basePath])
+        ->assertSuccessful();
+
+    // 66analytics should be updated, others should remain at 0.0.0
+    expect(Vendor::where('slug', '66analytics')->first()->current_version)->toBe('42.0.0')
+        ->and(Vendor::where('slug', '66pusher')->first()->current_version)->toBe('0.0.0');
+});
+
+it('fails when base path does not exist', function () {
+    $this->artisan('uptelligence:sync-altum-versions', ['--path' => '/nonexistent/path'])
+        ->assertFailed();
+});
+
+it('skips plugins not registered in vendors table', function () {
+    $basePath = createMockServicesDirectory(
+        productVersions: ['66biolinks' => '43.0.0'],
+        pluginVersions: ['unknown-plugin' => '1.0.0'],
+    );
+
+    $this->artisan('uptelligence:sync-altum-versions', ['--path' => $basePath])
+        ->assertSuccessful();
+
+    // Unknown plugin should not cause an error, but should be SKIPPED
+    expect(Vendor::where('slug', 'altum-plugin-unknown-plugin')->first())->toBeNull();
+});
+
+/**
+ * Create a temporary directory structure mimicking the SaaS services layout.
+ *
+ * @param  array<string, string>  $productVersions  slug => version
+ * @param  array<string, string>  $pluginVersions   plugin_id => version
+ */
+function createMockServicesDirectory(
+    array $productVersions = [],
+    array $pluginVersions = [],
+): string {
+    $basePath = sys_get_temp_dir() . '/uptelligence-test-' . uniqid();
+
+    $productPaths = [
+        '66analytics' => '66analytics/package/product',
+        '66biolinks' => '66biolinks/package/product',
+        '66pusher' => '66pusher/package/product',
+        '66socialproof' => '66socialproof/package/product',
+    ];
+
+    foreach ($productVersions as $slug => $version) {
+        if (! isset($productPaths[$slug])) {
+            continue;
+        }
+
+        $productDir = $basePath . '/' . $productPaths[$slug] . '/app';
+        mkdir($productDir, 0755, true);
+
+        file_put_contents(
+            $productDir . '/init.php',
+            "<?php\ndefine('PRODUCT_VERSION', '{$version}');\n",
+        );
+    }
+
+    // Create plugins directory under 66biolinks
+    if (! empty($pluginVersions)) {
+        $pluginsBase = $basePath . '/' . $productPaths['66biolinks'] . '/plugins';
+
+        foreach ($pluginVersions as $pluginId => $version) {
+            $pluginDir = $pluginsBase . '/' . $pluginId;
+            mkdir($pluginDir, 0755, true);
+
+            file_put_contents(
+                $pluginDir . '/config.php',
+                "<?php\nreturn [\n    'version' => '{$version}',\n    'name' => 'Test Plugin',\n];\n",
+            );
+        }
+    }
+
+    // Ensure base path itself exists even if no products
+    if (! is_dir($basePath)) {
+        mkdir($basePath, 0755, true);
+    }
+
+    return $basePath;
+}