California PI License #18755 · Serving Southern, Central & Northern California since 1996 1-877-PROOF-24/7 · Open 24/7

San Anselmo Private Investigator

San Anselmo is one of the Marin County communities Bear Witness has served since 1996. Marin County is part of Northern California, and covers the affluent, largely residential county across the Golden Gate Bridge from San Francisco.

How We Work San Anselmo Cases

Most investigations start with a short conversation about what you already know and what you need confirmed — then a plan for surveillance, records work, or both. You’ll get a straightforward estimate before any work begins, and you’ll work with one investigator throughout, not a rotating team.

Common Case Types in San Anselmo

Infidelity and divorce-related surveillance, custody and parenting-time compliance, background checks, process serving, and business or workers’-compensation investigations. Many San Anselmo-area cases combine more than one of these — a custody case that also involves a background check, for example.

Licensed, Insured, and Accountable

Bear Witness operates under California PI License #18755 and the standards set by the California Bureau of Security and Investigative Services. That licensing matters in San Anselmo cases headed to family court or civil litigation, where the source of the evidence gets scrutinized as closely as the evidence itself.

Frequently Asked Questions

Do you only work San Anselmo, or the wider area too?
We cover all of Marin County and the rest of Northern California — San Anselmo is one stop on a much wider coverage map. See nearby cities we serve below.
What information should I have ready before I call?
Whatever you already know is helpful, but not required — names, addresses, schedules, or specific concerns. If you don’t have much yet, that’s fine too; part of the first call is figuring out what’s realistic to investigate.
Do you handle cases for attorneys, or only individuals?
Both. We regularly work with family law and litigation attorneys throughout Marin County who need documented surveillance, background investigations, or witness location for their cases.
What happens if the investigation doesn’t find anything?
A clear negative result is still a useful outcome — it answers the question either way. You’ll get an honest report reflecting what was and wasn’t found, not a stretched interpretation of thin evidence.

Call 1-877-PROOF-24/7 to talk through your San Anselmo case with a licensed investigator, free of charge.

Also Serving Nearby

Talk to a Licensed Investigator Today

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Call 1-877-PROOF-24/7