City government
City of Brentwood — Business licensing information
City of Brentwood
Business license information — City of Brentwood (opens in a new tab)Official instructions
Service area: City of Brentwood
Contra Costa County, California · Business and licensing
Check or apply for a business license in Contra Costa County
Check local business license or business tax certificate requirements, the right authority and application options.
15 providers · 16 official links (1 online) · 3 reviewed requirements · sources checked October 28, 2026In Contra Costa County, 14 city governments and 1 county department publish 16 official links for this service, 1 of them online. Reviewed requirements cover eligibility (2) and documents (1). 1 provider publishes reviewed fee items on their guides.
These are the Contra Costa County providers with a reviewed service link for this task. Other offices may also help, and a provider may serve only part of the county: check each service area. Fees and forms stay on each office’s guide, where their sources are cited.
City government
City of Clayton — Business licensing information
City of Clayton
Business license information — City of Clayton (opens in a new tab)Official instructions
Service area: City of Clayton
City government
City of Concord — Business licensing information
City of Concord
Business license information — City of Concord (opens in a new tab)Official instructions
Service area: City of Concord
City government
City of Danville — Business licensing information
City of Danville
Business license information — City of Danville (opens in a new tab)Official instructions
Service area: City of Danville
City government
City of El Cerrito — Business licensing information
City of El Cerrito
Business license information — City of El Cerrito (opens in a new tab)Official instructions
Service area: City of El Cerrito
City government
City of Hercules — Business licensing information
City of Hercules
Business license information — City of Hercules (opens in a new tab)Official instructions
Service area: City of Hercules
City government
City of Lafayette — Business licensing information
City of Lafayette
Business license information — City of Lafayette (opens in a new tab)Official instructions
Service area: City of Lafayette
City government
City of Oakley — Business licensing information
City of Oakley
Business license information — City of Oakley (opens in a new tab)Official instructions
Service area: City of Oakley
City government
City of Pinole — Business licensing information
City of Pinole
Business license information — City of Pinole (opens in a new tab)Official instructions
Service area: City of Pinole
City government
City of Pittsburg — Business licensing information
City of Pittsburg
Business license information — City of Pittsburg (opens in a new tab)Official instructions
Service area: City of Pittsburg
City government
City of Pleasant Hill — Business licensing information
City of Pleasant Hill
Business license information — City of Pleasant Hill (opens in a new tab)Official instructions
Service area: City of Pleasant Hill
City government
City of Richmond — Business licensing information
City of Richmond
Business license information — City of Richmond (opens in a new tab)Official instructions
Service area: City of Richmond
City government
City of San Pablo — Business licensing information
City of San Pablo
Business license information — City of San Pablo (opens in a new tab)Official instructions
Service area: City of San Pablo
City government
City of Walnut Creek — Business licensing information
City of Walnut Creek
Business license information — City of Walnut Creek (opens in a new tab)Official instructions
Service area: City of Walnut Creek
County government
Treasurer-Tax Collector
County business-license jurisdiction, activity requirements and exemptions (opens in a new tab)Official instructions
Service area: Business conducted in unincorporated Contra Costa County, including covered outside businesses and contractors.
Apply after the required zoning and planning approval (opens in a new tab)Online service
Service area: County application for the covered unincorporated-area business activity; check city and outside-contractor requirements separately.
Related services in Contra Costa County
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All Contra Costa County services and offices → · Report an error on this page