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Look up a business license

Use an official business license directory or account lookup. Check the type and area of license covered.

Before you start

Start with where your business is located and where it will operate. A county license may apply only to unincorporated areas or specific activities; cities can have their own requirements.
Some county offices provide guidance or referrals and do not issue a general business license. Read the entry before choosing an application.
A business license or tax certificate, an FBN/DBA filing, business entity registration and a professional license serve different purposes. Zoning, health and other activity permits may also apply. Business stormwater registration is a separate local programme where required.
Check the license period, renewal date and rules for changes in ownership or location. A renewal may not cover a move or a new owner. Fees and application steps depend on the license category.

1 guide with reviewed service links · Marin

Choose a county on the map

Highlighted counties have a reviewed service guide matching this selection. An agency may serve only a city or part of a county.

California58 counties

County directory Reviewed service guides available

Map for browsing; agency service areas may differ.

Map source

U.S. Census boundaries via U.S. Atlas · 2017 edition, simplified for display.

County government · Marin

Business licensing requirements and referrals depend on the business activity and its location. Read the specific service scope before applying.

Use the official county business-license search and check the account and location covered.

Service area: Records of county business-license accounts for unincorporated Marin County. Area details & sources

Source checked October 16, 2026

Reviewed business licensing instructions

Search Active Business Licenses

Saved evidence: 9b0d0ff24da22585 · Agent source review