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
DILIGENT PROTECTION GROUP INC
Private Patrol Operator 121302 · SAN BERNARDINO · read September 14, 2026
Licensed
DIMAH PRIVATE SECURITY SERVICES
Private Patrol Operator 122602 · IRVINE · read September 14, 2026
Licensed
DINASTY SECURITY SERVICES INC.
Private Patrol Operator 121324 · LOS ANGELES · read September 14, 2026
Licensed
DIORS ULTIMATE SECURITY
Proprietary Private Security Officer Employer 1417 · FAIRFIELD · read September 14, 2026
Licensed
DIRECT GUARD SERVICES
Private Patrol Operator 120457 · CORONA · read September 14, 2026
Licensed
DIRECT MEASURES, INC.
Private Patrol Operator 121470 · NEWPORT BEACH · read September 14, 2026
Licensed
DIRECT PROTECTION
Alarm Company Operator 5723 · DISCOVERY BAY · read September 14, 2026
Licensed
DIRECT PROTECTION SECURITY INC
Alarm Company Operator 6446 · BRENTWOOD · read September 14, 2026
Licensed
DIREWOLF PROTECTIVE SERVICES LP
Private Patrol Operator 122379 · LOMITA · read September 14, 2026
Licensed
DISH NETWORK CALIFORNIA SERVICE CORPORATION
Alarm Company Operator 7951 · ENGLEWOOD · read September 14, 2026
Licensed
DISNEYLAND RESORT, A DIVISION OF WALT DISNEY PARKS AND RESORTS U.
Proprietary Private Security Officer Employer 364 · ANAHEIM · read September 14, 2026
Licensed
DISPLEASED MARMOT LLC
Proprietary Private Security Officer Employer 1671 · SAN FRANCISCO · read September 14, 2026
Licensed
DISTRICT & CHARTER PATROL
Private Patrol Operator 121043 · RANCHO CUCAMONGA · read September 14, 2026
Licensed
DISTRICT PROTECTIVE AGENCY
Private Patrol Operator 17054 · ANAHEIM · read September 14, 2026
Licensed
DIVE BAR
Proprietary Private Security Officer Employer 991 · GOLD RIVER · read September 14, 2026
Licensed
DIVERSIFIED ALARM SERVICE,INC.
Alarm Company Operator 5547 · MONTEREY PARK · read September 14, 2026
Licensed
DIVERSIFIED PROTECTION CORPORATION
Private Patrol Operator 121065 · DANIEL ISLAND · read September 14, 2026
Licensed
DIVERSIFIED PROTECTIVE SERVICES
Private Patrol Operator 119757 · WHITTIER · read September 14, 2026
Licensed
DIVERSIONARY THEATRE PRODUCTIONS, INC
Proprietary Private Security Officer Employer 1612 · SAN DIEGO · read September 14, 2026
Licensed
DIVINE DEFENSE SOLUTIONS
Private Patrol Operator 122303 · HUNTINGTON BEACH · read September 14, 2026
Licensed
DIVINE PROTECTION SERVICES
Private Patrol Operator 121392 · VAN NUYS · read September 14, 2026
Licensed
DIVINITY PROTECTION SERVICES
Private Patrol Operator 120696 · WATSONVILLE · read September 14, 2026
Licensed
DK SYSTEMS
Alarm Company Operator 5804 · LA QUINTA · read September 14, 2026
Licensed
DL SYSTEMS, INC DBA INNOVATIVE
Alarm Company Operator 7402 · RIVERSIDE · read September 14, 2026
Licensed
DLJ PROTECTION
Private Patrol Operator 122014 · HAYWARD · read September 14, 2026
Licensed
DM SECURITY COMPANY
Alarm Company Operator 7471 · MODESTO · read September 14, 2026
Licensed
DMB SECURITY SERVICES, INC
Private Patrol Operator 121514 · SAN DIMAS · read September 14, 2026
Licensed
DNC ELECTRONIC SECURITY SYSTEMS INC
Alarm Company Operator 3234 · ALHAMBRA · read September 14, 2026
Licensed
DOHENY SECURITY SERVICES, INC.
Private Patrol Operator 121384 · BEVERLY HILLS · read September 14, 2026
Licensed
DOMINANCE SECURITY OFFICERS
Private Patrol Operator 122381 · NEWPORT BEACH · read September 14, 2026
Licensed
DOMINICAN HOSPITAL DBA DIGNITY HEALTH
Proprietary Private Security Officer Employer 21 · SANTA CRUZ · read September 14, 2026
Licensed
DOMINION PROTECTIVE SOLUTIONS
Private Patrol Operator 122483 · MURRIETA · read September 14, 2026
Licensed
DOMINOLOGY SECURITY GROUP
Private Patrol Operator 122476 · OAKLAND · read September 14, 2026
Licensed
DONE RIGHT SECURITY, INC.
Alarm Company Operator 7687 · BENICIA · read September 14, 2026
Licensed
DONOVAN SECURITY SOLUTIONS, INC.
Private Patrol Operator 122262 · BEVERLY HILLS · read September 14, 2026
Licensed
DOOR GUARD SECURITY CORP.
Private Patrol Operator 122674 · SIMI VALLEY · read September 14, 2026
Licensed
DOS ZAPATOS, INC
Proprietary Private Security Officer Employer 1227 · PHILO · read September 14, 2026
Licensed
DOUBLETREE EMPLOYER LLC
Proprietary Private Security Officer Employer 1654 · PITTSBURGH · read September 14, 2026
Licensed
DOUCETTE SECURITY
Private Patrol Operator 14176 · VENTURA · read September 14, 2026
Licensed
DOUGLAS SECURITY
Alarm Company Operator 5684 · SEAL BEACH · read September 14, 2026
Licensed
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