Security Companies in California

California licenses private patrol operators through a state bureau. Start with your city, then check the company's license with BSIS.

By Security Briefing, an independent publication. Details checked . Listings are not endorsements.

How California licensing works

The Bureau of Security and Investigative Services oversees this field. A guard company operates as a private patrol operator, and you can search by name, city, or county on the verify a license page.

Read our explainer on the security guard card for the individual side.

Companies describing California coverage

All Star Security Services: “California Security Coverage” Visit company website

Yelp View listing Sacramento listing

American Force Private Security: “Private Security Guard Services LA & Riverside County” Visit company website

BBB A+ Accredited · 0 complaints in 3 yrs
Yelp 5.0 out of 5 on Yelp 4 reviews San Bernardino listing

California Security Agency: “California Security Agency offers consulting services” Visit company website

Yelp 2.2 out of 5 on Yelp 10 reviews Sacramento listing

Enhanced Security Solutions: “We also offer security patrol in Riverside, California and security patrol in Los Angeles, California” Visit company website

BBB A+ Accredited · 0 complaints in 3 yrs
Yelp 5.0 out of 5 on Yelp 1 review Riverside listing

My Security Guards: “Security Guard Company in California” Visit company website

No matching BBB or Yelp profile found

Security Services Northwest: “Professional Security Services in California” Visit company website

No matching BBB or Yelp profile found

Their own descriptions, which we did not verify statewide. BBB details come from its profile; Yelp scores from Yelp's search listing, for the location shown. A score from a few reviews says little. We don't rate companies ourselves. Checked November 6, 2026.