Service areas / Southern California
Coverage across four counties.
Serving San Diego, Orange, Los Angeles, and Riverside Counties, as well as the Inland Empire.
San Diego County
CAT III Security provides security guard services in San Diego County for commercial properties, construction sites, residential communities, offices, warehouses, hotels, and events. We build coverage around the site, schedule, and security concerns you need to discuss.
View San Diego County coverageOrange County
Businesses, property managers, communities, and event organizers looking for a security company in Orange County can work with CAT III Security on a tailored coverage plan. We support conversations about guards, patrols, fire watch, events, and site-specific protection.
View Orange County coverageLos Angeles County
CAT III Security offers security guard services for Los Angeles County properties and operations that need a professional presence. Coverage can be discussed for offices, construction, commercial sites, warehouses, residential communities, hotels, and events.
View Los Angeles County coverageRiverside County
Organizations searching for a security company in Riverside County can contact CAT III Security about guards, mobile patrol, fire watch, event coverage, and customized protection. We start with the location, timing, and conditions that shape the assignment.
View Riverside County coverageStart with the site
Request a security quote.
Tell us what needs coverage, where it is located, and when you need support. 619-771-7204 / info@cat3security.com