Security Guard Companies in San Francisco

A “Bay Area” company may not routinely staff San Francisco, so we separate pages naming the city from pages describing the wider region.

By Security Briefing, an independent publication. Details checked November 6, 2026. Listings are not endorsements.

Pages naming San Francisco

Alphabetical within each type, not a ranking. “Consider for” reflects services each company names, not our testing. 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. All entries checked November 6, 2026.
Company	Consider for	Documented location or service area	License on its site	Reviews	Official website
Armada Security Says it serves the area More about Armada Security In its own words: “We provide reliable on-site security guard services and mobile patrols across San Francisco and South Bay.” License shown on its site: PPO 120526	Mobile patrols, offices and commercial property, HOAs and residential property	“San Francisco Security Guard Services”	PPO 120526	No matching BBB or Yelp profile found	Visit website
Bannerman Says it serves the area	Offices and commercial property, armed posts, events and venues	“San Francisco Security Guards”	Not found	Yelp 4.1 out of 5 on Yelp 40 reviews	Visit website
PalAmerican Security Says it serves the area More about PalAmerican Security In its own words: “Supported by 50 years of security experience and a national footprint across 44 states, PalAmerican delivers professionally trained security services led by San Francisco‑based teams.” License shown on its site: PPO 121136	Offices and commercial property, healthcare sites, mobile patrols	“San Francisco Security Services”	PPO 121136	No matching BBB or Yelp profile found	Visit website
Securitas Says it serves the area More about Securitas In its own words: “In San Francisco, we combine our deep local understanding with broad security knowledge to serve your needs.”	Mobile patrols, events and venues, personal protection	“Contact Securitas Security Services in San Francisco”	Not found	Yelp 1.0 out of 5 on Yelp 1 review	Visit website
Security Guard CA Says it serves the area More about Security Guard CA In its own words: “Our private Security Guard professionals in San Francisco provides businesses, properties, and individuals with security guard service that is incomparable in the Bay Area.”	Offices and commercial property, mobile patrols, events and venues	“San Francisco Security Guard Services”	Not found	No matching BBB or Yelp profile found	Visit website

Pages describing the Bay Area

Ask these firms whether they staff San Francisco today.

Alphabetical within each type, not a ranking. “Consider for” reflects services each company names, not our testing. 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. All entries checked November 6, 2026.
Company	Consider for	Documented location or service area	License on its site	Reviews	Official website
Marina Security Services Office listed More about Marina Security Services In its own words: “Marina Security Services celebrates 25 years protecting communities across California.” Years in business: 29, per BBB Business type: Corporation, per BBB BBB accreditation: Not accredited, which BBB says is optional License shown on its site: PPO 15655	Mobile patrols	465 California St., Suite 626, San Francisco CA 94104	PPO 15655	BBB A+ 0 complaints in 3 yrs Yelp 4.2 out of 5 on Yelp 5 reviews	Visit website
Nob Hill Security Office listed More about Nob Hill Security In its own words: “At the end of the day, we want you to be as confident as we are that your assets, your interests, and your people are protected and secure.” Years in business: 11, per BBB BBB accreditation: Not accredited, which BBB says is optional License shown on its site: PPO 119829	Events and venues, offices and commercial property, HOAs and residential property	100 Pine St. 1250, San Francisco, CA 94111	PPO 119829	BBB A+ 0 complaints in 3 yrs Yelp View listing	Visit website
CME Security Says it serves the area	Events and venues, offices and commercial property, mobile patrols	“Serving the San Francisco Bay Area”	Not found	Yelp View listing San Leandro listing	Visit website
First Guardian Security Says it serves the area More about First Guardian Security In its own words: “Find your local security team today and secure the protection you need with our trusted security guard services company in San Francisco (Bay Area).”	Events and venues, construction sites, mobile patrols	“Security Guard Company In San Francisco Bay Area”	Not found	No matching BBB or Yelp profile found	Visit website

Check the license

California guard companies are private patrol operators. Check on the BSIS verify a license page. San Francisco is both a city and a county, so that part is simple.

Elsewhere in the state: the California guide and Los Angeles. Comparing service types? See unarmed coverage.

San Francisco questions

Which neighborhoods do you staff today?
Do officers commute over a bridge? How do you cover missed shifts?
Do you handle retail, residential towers, or tech offices?