diff --git a/SharepointToolbox/App.xaml.cs b/SharepointToolbox/App.xaml.cs
index a9bb503..1557a06 100644
--- a/SharepointToolbox/App.xaml.cs
+++ b/SharepointToolbox/App.xaml.cs
@@ -77,6 +77,12 @@ public partial class App : Application
             "SharepointToolbox");
         services.AddSingleton(_ => new ProfileRepository(Path.Combine(appData, "profiles.json")));
         services.AddSingleton(_ => new SettingsRepository(Path.Combine(appData, "settings.json")));
+
+        // Phase 10: Branding Data Foundation
+        services.AddSingleton(_ => new BrandingRepository(Path.Combine(appData, "branding.json")));
+        services.AddSingleton<IBrandingService, BrandingService>();
+        services.AddTransient<IGraphUserDirectoryService, GraphUserDirectoryService>();
+
         services.AddSingleton<MsalClientFactory>();
         services.AddSingleton<SessionManager>();
         services.AddSingleton<ISessionManager>(sp => sp.GetRequiredService<SessionManager>());