Licensed security companies in California
5,248 currently licensed · 576 not current · read September 14, 2026
These are California Department of Consumer Affairs, Bureau of Security and Investigative Services (BSIS) records for the Private Patrol Operator (PPO), as we read them on September 14, 2026. tessura did not issue or approve any of them, and most of these companies have no account with us. A company missing from this list is not necessarily unlicensed — check the regulator directly.
Check any record at the California Department of Consumer Affairs, Bureau of Security and Investigative Services (BSIS) lookup →Also checking the guards themselves? What they should hold in California →5,248 records
GREAT WESTERN ALRM & COMNICTNS INC
Alarm Company Operator 2574 · PASO ROBLES · read September 14, 2026
Licensed
GREAT WESTERN PROTECTION SVC
Private Patrol Operator 10704 · CORONA · read September 14, 2026
Licensed
GREAT WESTERN SECURITY SERVICE
Private Patrol Operator 14115 · FRESNO · read September 14, 2026
Licensed
GREATER BAY PROTECTIVE SERVICES, INC.
Private Patrol Operator 122733 · FOLSOM · read September 14, 2026
Licensed
GREATER LOS ANGELES PATROL
Private Patrol Operator 9235 · GLENDALE · read September 14, 2026
Licensed
GREATER LOS ANGELES PATROL
Alarm Company Operator 2006 · GLENDALE · read September 14, 2026
Licensed
GREEN ADVTR 101 INC DBA COOKIES
Proprietary Private Security Officer Employer 1432 · SANTA ROSA · read September 14, 2026
Licensed
GREEN CATALYST ENTERPRISES INC
Proprietary Private Security Officer Employer 1621 · PATTERSON · read September 14, 2026
Licensed
GREEN HERON
Proprietary Private Security Officer Employer 1389 · LAKEPORT · read September 14, 2026
Licensed
GREEN KNIGHT SECURITY
Private Patrol Operator 120793 · LA HABRA · read September 14, 2026
Licensed
GREEN SECURITY SOLUTIONS
Proprietary Private Security Officer Employer 1313 · LAGUNA HILLS · read September 14, 2026
Licensed
GREEN VALLEY SECURITY AND SUPPLY LLC
Proprietary Private Security Officer Employer 1664 · CORVALLIS · read September 14, 2026
Licensed
GREENLIGHT SECURITY INC
Private Patrol Operator 121909 · DESTIN · read September 14, 2026
Licensed
GREENMARBLES, LLC
Alarm Company Operator 7884 · NEWPORT BEACH · read September 14, 2026
Licensed
GREKO LLC
Proprietary Private Security Officer Employer 1810 · SOQUEL · read September 14, 2026
Licensed
GREWAL SECURITY SERVICES
Private Patrol Operator 121239 · TRACY · read September 14, 2026
Licensed
GRIMMWAY ENTERPRISES, INC.
Proprietary Private Security Officer Employer 1243 · BAKERSFIELD · read September 14, 2026
Licensed
GRIMSTAD ALARMS, ETC
Alarm Company Operator 5622 · SACRAMENTO · read September 14, 2026
Licensed
GRIZ CALIFORNIA SOLUTIONS INC
Private Patrol Operator 121729 · HAWAIIAN GARDENS · read September 14, 2026
Licensed
GROUND BRANCH SECURITY GROUP (GBSG)
Private Patrol Operator 121439 · FAIRFIELD · read September 14, 2026
Licensed
GROUP SERVICES WEST
Private Patrol Operator 14263 · REDWOOD CITY · read September 14, 2026
Licensed
GRS PRIVATE SECURITY, INC.
Private Patrol Operator 121024 · VAN NUYS · read September 14, 2026
Licensed
GS PROTECTION SERVICES INC
Private Patrol Operator 121546 · CANYON COUNTRY · read September 14, 2026
Licensed
GS WILLIAMS, INC.
Alarm Company Operator 8170 · ROCKLIN · read September 14, 2026
Licensed
GS1 GROUP, INC.
Private Patrol Operator 15941 · LA CRESCENTA · read September 14, 2026
Licensed
GSC (GLOBAL SECURITY CONCEPTS, INC)
Private Patrol Operator 17985 · LOS ANGELES · read September 14, 2026
Licensed
GTOPSS
Private Patrol Operator 120445 · RUSKIN · read September 14, 2026
Licensed
GTR FOUR SECURITY
Private Patrol Operator 122106 · OAKLAND · read September 14, 2026
Licensed
GUARANTY SECURITY SERVICES
Private Patrol Operator 121882 · LODI · read September 14, 2026
Licensed
GUARD FOR AMERICA (G4A)
Private Patrol Operator 121569 · ANAHEIM · read September 14, 2026
Licensed
GUARD FORCE SECURITY SERVICES
Private Patrol Operator 119990 · CHATSWORTH · read September 14, 2026
Licensed
GUARD FORGE SECURITY, INC.
Private Patrol Operator 122774 · HAWTHORNE · read September 14, 2026
Licensed
GUARD GRABBER
Private Patrol Operator 120962 · SANTA BARBARA · read September 14, 2026
Licensed
GUARD MOUNT PRIVATE SECURITY
Private Patrol Operator 120286 · GRANADA HILLS · read September 14, 2026
Licensed
GUARD RESOURCE INC.
Private Patrol Operator 121207 · CANYON COUNTRY · read September 14, 2026
Licensed
GUARD RESPONSE PRIVATE SECURITY
Private Patrol Operator 17171 · BLOOMINGTON · read September 14, 2026
Licensed
GUARD SQUAD, INC.
Private Patrol Operator 17309 · CORONA · read September 14, 2026
Licensed
GUARD SYSTEMS INC
Private Patrol Operator 6081 · MONTEREY PARK · read September 14, 2026
Licensed
GUARD WEST SECURITY SERVICES
Private Patrol Operator 121694 · SAN DIEGO · read September 14, 2026
Licensed
GUARDCO SECURITY SERVICES, INC.
Private Patrol Operator 17378 · MERCED · read September 14, 2026
Licensed
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