Security Companies in the United States
Use this guide to find physical security companies by location or type of service. Every listing links to the company's own page, and each city guide shows how to check a license with the state.
Compare types of security
- Guarding on siteOfficers posted at one locationRead the guide
- Mobile patrolVehicle visits and alarm responseRead the guide
- Armed officersCredential checks come firstRead the guide
- Unarmed officersEntry control and observationRead the guide
- Commercial propertyOffices, retail, warehousesRead the guide
- Corporate programsCompany-wide coverageRead the guide
- EventsEntrances and crowd plansRead the guide
- Construction sitesCoverage by project phaseRead the guide
Installing rather than staffing? See security integrators, fire and security companies, security door installers, and security gate companies.
Find local security guard companies by state and city
Colorado
Florida
Georgia
Maryland
Nevada
New Mexico
New York
Pennsylvania
Tennessee
Texas
We only list places where we could confirm companies from their own websites.
How listings are verified
- We read the company's own page, not a directory listing.
- The page must state the location or service area. A city name in a search result isn't enough.
- We label each entry as Office listed, when its page shows a street address there, or Says it serves the area, when it only claims coverage.
- We link the state's official license lookup. We don't confirm license status for you, because it can change.
Order isn't a ranking.Order isn't a ranking, companies can't buy placement, and we publish no prices. We don't rate companies ourselves. On location pages, BBB and Yelp details are third-party and shown only when the profile matches the company and location.
Working in the security industry?
Job seekers can see security companies hiring in New Jersey. Guard company owners can compare financing options for security guard companies.
Looking for the largest security guard companies?
We haven't verified a size ranking. The multi-location firms below came up in these searches and describe guarding on their own pages. They work through local branches, so confirm the branch that will serve you.
Allied Universal
Page title: “Allied Universal | Leading Security Services & Solutions Worldwide”
Securitas
Page title: “Customized Security & Guarding Solutions | Securitas USA”
PalAmerican Security
Page title: “Security Services | PalAmerican offers Licensed Security Guards”
Walden Security
Page title: “Walden Security | Commercial & Government Security Services”
Admiral Security
Page title: “Security Guard Services & Security Solutions | Admiral Security”
This isn't a size ranking.