In order to register your business name, you need to file a Fictitious Business Name, also know  as Doing Business As (DBA). As a business owner, you are required to file your business name with the San Francisco Office of the County Clerk prior to 40 days after opening your doors to conduct business. You will also want to check to make sure you are not sharing names with another business in the city.

You can file your business name and register it with the city at:

County Clerk, City Hall, Room 168
1 Dr. Carlton B. Goodlett Place
San Francisco, CA 94102


The San Francisco City Clerk office is open from 8 AM to 4 PM during the week. You can also call the office at Tel. 415-554-4950.

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