◈Security CompanyCheckLicensed security guard and alarm companies in California and Illinois: license type, branch offices, years licensed and Illinois discipline.
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How we make money. Security and alarm companies can buy a flat-fee featured listing, always labelled. Placement in the regular directory is never for sale.
The information on Security Company Check is not a recommendation or a guarantee of anyone's work. A license record shows registration status on the date shown, not workmanship, insurance coverage at the time of your job, or suitability for your project. Confirm license, insurance and permits directly before you hire. Listings are compiled from public records, may contain errors, and are not endorsements. Terms · Privacy · Disclaimer · Advertiser terms · Corrections · Accessibility
Security Company Check is an independent directory compiled from public records. Data is from California BSIS and Illinois IDFPR public licensing files; always confirm a license on the state's own lookup before you sign. Data refreshed 2026-10-16. © 2026 Sabr Software.