Commercial Security Companies

Commercial security companies protect a business property, through installed systems, guards, or both. Start by deciding which you need, since many firms do only one.

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

Companies with commercial service pages

Systems and monitoring

Guards and patrol

These national firms list guarding for business properties. Check the branch near you.

Local firms are in our city guides.

What each type of property usually needs

How each commercial property type usually differs. This is general guidance, so confirm it for your site.
NeedOfficesRetail premisesWarehousesMulti-tenant sites
Guard coverageLobby, business hoursLoss prevention, peak hoursGates and dock, shift changesShared lobby, agreed by landlord
MonitoringAlarms and cameras after hoursCameras at exits and stockPerimeter and yard camerasCommon areas; tenants own the rest
PatrolsRarely needed in daytimeParking and closing checksAfter-hours yard checksGarage and exterior rounds
Access controlBadges by floorStaff and stockroom doorsVehicle and dock controlWho issues and revokes credentials
After-hours responseWho is called, and who goesWho meets police at a break-inWho secures a damaged doorLandlord or tenant, in writing

Questions for your property

  • Who owns the system if you change vendors?
  • What's the plan when an alarm triggers at 3 a.m.?
  • Does your lease make the landlord responsible for any of this?
  • Who manages access for tenants or departing staff?

Commercial coverage by city

Compare guard companies with documented locations in New York City, Atlanta, and Baltimore.