2026 Ranking
Best Security Companies in Berkeley
Ranking of the best private security companies in Berkeley, California. The order prioritizes verified state licensing, track record and verified reviews; profile views and recommendations only fine-tune the order.
Verified state license Real user views 32 companies in Berkeley
We're still gathering recommendations and verified customer reviews in Berkeley. In the meantime, the order is based on license status and profile views.
Top-ranked companies in Berkeley
All state licensed security companies in Berkeley
32 companies with a verified, active state license, ranked by track record and reputation. All checked against official license records.
- 11FINE AND ASSOCIATES State Licensed· Private Investigation
- 12FIRE CAUSE ANALYSIS, INC State Licensed· Private Investigation
- 13GAUDET INVESTIGATIONS State Licensed· Private Investigation
- 14JAKE BERGMAN & ASSOCIATES State Licensed· Private Investigation
- 15JOHN MASON INVESTIGATIONS State Licensed· Private Investigation
- 16KURT NORTON State Licensed· Private Investigation
- 17MASON GROUP State Licensed· Private Investigation
- 18MCGARRAHAN INVESTIGATIONS State Licensed· Private Investigation
- 19MICHAEL TAYLOR INVESTIGATIONS State Licensed· Private Investigation
- 20OMNIA INVESTIGATIONS State Licensed· Private Investigation
- 21PACIFIC RACING ASSOCIATION-GOLDEN GATE FIELDS State Licensed· Security Guards
- 22REGIONAL DEFENSE State Licensed· Security Guards
- 23RIBAK RESEARCH & INVESTIGATION State Licensed· Private Investigation
- 24SIGNAL SECURITY BERKELEY-OAKLAND-HAYWARD State Licensed· Security Guards
- 25SIU State Licensed· Private Investigation
- 26STANNARD & SON INVESTIGATIONS State Licensed· Private Investigation
- 27STETLER RUSSELL INVESTIGATIONS State Licensed· Private Investigation
- 28THIRD I SPY PRIVATE INVESTIGATIONS State Licensed· Private Investigation
- 29TRACY YOUNG INVESTIGATIONS & MITIGATION State Licensed· Private Investigation
- 30VALERIE KRAML State Licensed· Private Investigation
- 31VINE GROUP, INC. State Licensed· Private Investigation
- 32WATERFRONT INTELLIGENCE INC State Licensed· Private Investigation
Ranking methodology
The order reflects real, verifiable signals that are hard to manipulate. Companies with a verified state license appear first; within that group we prioritize the best-reviewed (verified reviews) and the most established according to official records. Profile views and community recommendations only fine-tune the order — a couple of votes can't move positions. For each company we show exactly which signals back its position.
- State license — we verify each active license against state licensing boards like California BSIS and Illinois IDFPR. Licensed companies appear first.
- Real profile views — how many people viewed the company's profile over the last 30 days.
- Community recommendations — user votes with anti-fraud controls (fingerprint dedup).
- Verified customer reviews — customer rating and review volume, when available.
Looking for more options in Berkeley?
Browse the complete directory with all 32 private security companies listed in Berkeley, filter by service type and compare pricing.
View full directorySecurity services in Berkeley
Security Guards en BerkeleyArmed Security Guards en BerkeleyMobile Patrol en BerkeleyEvent Security en BerkeleyFire Watch Services en BerkeleyExecutive Protection en BerkeleyK9 Security en BerkeleyLoss Prevention & Retail Security en BerkeleyCorporate Security en BerkeleyWarehouse & Industrial Security en BerkeleyResidential & HOA Security en BerkeleyConstruction Site Security en BerkeleyAlarm Monitoring en BerkeleyVideo Surveillance & CCTV en BerkeleyAccess Control en BerkeleyPrivate Investigation en BerkeleyArmored Transport & Cash-in-Transit en BerkeleySecurity Consulting en Berkeley
More about private security in Berkeley
Directory of BerkeleyAll security companies, with search and pagination.State Licensed in BerkeleyOnly companies with an active state license.
See all security companies in CaliforniaFrequently asked questions
What are the best private security companies in Berkeley?
Top companies in Berkeley include 31 ACORNS, 911 INC, ACTUAL FACTS-INNOVATIVE RESEARCH AND INVESTIGATION FIRM, BERKELEY INVESTIGATIVE SERVICES, BRAMHALL JENNIFER, based on their active state license and the volume of profile views and community recommendations on HireSecurityNow.com. The order updates continuously based on these signals.
How is the ranking of security companies in Berkeley determined?
Companies with a verified, active state license appear first, checked against official licensing board records like California BSIS and Illinois IDFPR. Within that group, the order reflects real profile views over the last 30 days, community recommendations (with anti-fraud controls) and verified customer reviews when available.
Are the ranked companies state licensed?
We verify each company's license status against official state licensing board records. Each company's profile shows its license number and status when it holds an active license.
How do I hire one of these companies in Berkeley?
You can get free quotes from any company in the ranking: open its profile, submit a quote request with your requirements and you'll receive proposals directly. All quotes are free and come with no obligation.
How many security companies are listed in Berkeley?
Our directory lists 32 companies in Berkeley, California. You can browse the complete list in the Berkeley security companies directory.