- Union City, CA
Serves this city
Contra Costa County · California
Security companies in Brentwood, California
Brentwood sits in Contra Costa County, California, with a 2020 census population of 64,292. 11 security companies in our directory record coverage for Brentwood, and every one of them is a manually reviewed listing. Each card states whether the company is based in the city or serves it from nearby.
11 providers cover Brentwood
Providers serving Brentwood
Each card shows whether the company is based in Brentwood, serves it from elsewhere, or covers all of California.
11 companies shown for Brentwood.
- San Jose, CA
Serves this city
- Fremont, CA
Serves this city
Highly trained professionals equipped with the best technology
- Los Angeles, CA
Serves this city
- Oakland, CA
Serves this city
- San Jose, CA
Serves this city
Prevention before the intention is our utmost priority
- Pleasanton, CA
Serves this city
- Oakland, CA
Serves this city
We place client goals first and then develop risk mitigation measures to support those outcomes
- Alameda, CA
Serves this city
Safeguarding our clients' properties is at the core of our mission
- Oakland, CA
Serves this city
- San Jose, CA
Serves this city
Cities near Brentwood
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- Security companies in Walnut Creek21 mi
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- Security companies in Stockton22 mi
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Other Contra Costa County cities
Security services requested in Brentwood
Unarmed Security Guards in Brentwood
Uniformed guards for access control, patrol, and deterrence without firearms.
5 providers
Commercial & Business Security in Brentwood
Guard coverage for offices, warehouses, and commercial property.
8 providers
Bank & Financial Security in Brentwood
Guards trained for banks, credit unions, and cash-handling sites.
2 providers
Cannabis Dispensary Security in California
Licensed guards for dispensaries and cannabis transport.
K9 Security Services in Brentwood
Handler and detection dog teams for patrol and screening.
1 providers
Maritime & Yacht Security in Brentwood
Guards for marinas, vessels, and port-side property.
1 providers
Armed Security Guards in Brentwood
Licensed armed officers for higher-risk sites and asset protection.
6 providers
Mobile Patrol Services in California
Marked vehicle patrols and alarm response across multiple sites.
Event Security in Brentwood
Crowd management, access control, and safety staffing for events.
5 providers
Executive Protection in Brentwood
Close protection and secure transport for individuals and teams.
5 providers
Construction Site Security in California
Theft and vandalism prevention for active job sites and equipment yards.
Gated Community Security in California
Access control, gate staffing, and patrols for HOAs and gated neighborhoods.
Lobby & Front Desk Security in California
Concierge-style officers for building lobbies and reception areas.
Parking Lot & Garage Security in California
Patrols and monitoring for parking lots and structures.
Vacant Property Security in California
Protection for vacant buildings, lots, and construction-adjacent sites.
Retail Loss Prevention in California
Uniformed and plain-clothes staff focused on shrink reduction.
Fire Watch in California
Compliance patrols when fire systems are impaired or under repair.
Alarm & Video Monitoring in California
Remote monitoring of intrusion alarms and camera systems.
Residential Security in Brentwood
Gated community, HOA, and private residence security staffing.
3 providers
Hiring security in Brentwood: common questions
- Do security guards in Brentwood need a California licence?
- Yes. Guards working in Brentwood must hold a California guard registration, and the companies employing them must hold a Private Patrol Operator licence from the Bureau of Security and Investigative Services. Ask for both numbers before you sign anything.
- How do I check a Brentwood security company before hiring?
- Confirm the Private Patrol Operator number with BSIS, ask for a current certificate of insurance, and request references for sites of a similar size to yours.
- Which areas around Brentwood do these companies cover?
- Coverage is stored per city. Most providers listed here also cover other Contra Costa County cities, and each card states whether the company is based in Brentwood or travels in to serve it.
- What does Security Explorer publish about Brentwood companies?
- We publish only listings that have passed manual review. We show a licence as checked only when we hold a dated record of that check, and featured placement is a paid position rather than a recommendation.
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