Companies with an active Marin County business license

Type a company name. 29,198 companies in the County of Marin, Department of Finance file of July 31, 2026. No individuals.

Opening an account for a customer? A dated record report ($19) — or a whole list checked.

What this is

Businesses operating in unincorporated Marin County hold a County business license. The County publishes the active ones with their type and issue date. This site keeps the companies — names that carry Inc, LLC, Corp and the like — and makes them searchable by name, type and place.

Who uses it

• Suppliers and landlords — is this company in the Marin County file, and since when?
• Sales teams — companies by type and place, and the newest ones.
• Owners — your own record as the source publishes it.

What it is not

Not the County of Marin, and not a certificate. Individuals and names without a company word are left out. The County file covers unincorporated areas; cities such as San Rafael license their own businesses.

Browse

• Cities — 204
• Types — 123
• Since April 1, 2026 — 67