This List includes interior design firms located in the Bay Area, which is defined as Alameda, Contra Costa, Marin, San Francisco and San Mateo counties. Information was obtained from company representatives. BAMO (No. 5), Rapt Studio (No. 7), Skidmore, Owings & Merrill LLP (No. 21) and RMW Architecture & Interiors (No. 23) did not respond for comment.