City of Sonoma #1 the Plaza, Sonoma, CA 95476, 707-933-2216, Provides information on local city services and local government offices in the Sonoma area. more...

Sonoma Valley Chamber of Commerce 651-A Broadway, Sonoma, CA 95476, 707-996-1033, Promotes and supports local businesses and industries in the Sonoma Valley area plus provides relocation information. 

Sonoma Valley Visitors Bureau 453 First Street East, Sonoma, CA 95476, 707-996-1090, Provides information on local lodging, dining, shopping, attractions, and events in the Sonoma Valley area. more...