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
DEA SECURITY SYSTEMS CO., INC.
Alarm Company Operator 5953 · BELMONT · read September 14, 2026
Licensed
DEAD EYE EXECUTIVE, INC
Private Patrol Operator 120947 · CHINO · read September 14, 2026
Licensed
DEBOER SECURITY GLOBAL INC
Private Patrol Operator 120598 · BEVERLY HILLS · read September 14, 2026
Licensed
DEEP BLUE INTEGRATION, INC
Alarm Company Operator 6864 · SAN LUIS OBISPO · read September 14, 2026
Licensed
DEEP SENTINEL CORP
Alarm Company Operator 8096 · PLEASANTON · read September 14, 2026
Licensed
DEEP THOUGHT LLC
Proprietary Private Security Officer Employer 1541 · SANTA ROSA · read September 14, 2026
Licensed
DEEP VALLEY SECURITY INC
Alarm Company Operator 3195 · UKIAH · read September 14, 2026
Licensed
DEF-CON SECURITY INC.
Private Patrol Operator 15231 · COALINGA · read September 14, 2026
Licensed
DEFEND ALARM AND FIRE, INC.
Alarm Company Operator 8055 · RIALTO · read September 14, 2026
Licensed
DEFEND48
Private Patrol Operator 122396 · SAN DIEGO · read September 14, 2026
Licensed
DEFENDER ON - GUARD SECURITY INC
Private Patrol Operator 122534 · WEST HOLLYWOOD · read September 14, 2026
Licensed
DEFENDER PRIVATE SECURITY
Private Patrol Operator 120129 · HUNTINGTON PARK · read September 14, 2026
Licensed
DEFENDER SECURITY SYSTEMS, INC
Alarm Company Operator 4523 · VALENCIA · read September 14, 2026
Licensed
DEFENDIV
Private Patrol Operator 122331 · FRESNO · read September 14, 2026
Licensed
DEFENSA PRIVATE SECURITY
Private Patrol Operator 120277 · FREEDOM · read September 14, 2026
Licensed
DEFENSE BLOCK SECURITY
Private Patrol Operator 121632 · WINDSOR · read September 14, 2026
Licensed
DEFENSE ENGINEERED ALARMS
Alarm Company Operator 2749 · SANTA ANA · read September 14, 2026
Licensed
DEFENSE INTERNATIONAL CORPORATION
Private Patrol Operator 17352 · TUSTIN · read September 14, 2026
Licensed
DEFENSE LOGISTICS SPECIALIST CORP.
Private Patrol Operator 17042 · BURLINGAME · read September 14, 2026
Licensed
DEFENSE PROTECTION GROUP, INC.
Private Patrol Operator 122746 · SAN JOSE · read September 14, 2026
Licensed
DEFENSE STRATEGIES GROUP
Private Patrol Operator 121330 · WOODLAND HILLS · read September 14, 2026
Licensed
DEFENSIUM SECURITY INC.
Private Patrol Operator 122785 · IRVINE · read September 14, 2026
Licensed
DEFINITIVE PROTECTION
Private Patrol Operator 122039 · BEAUMONT · read September 14, 2026
Licensed
DEL MAR THOROUGHBRED CLUB
Proprietary Private Security Officer Employer 1419 · DEL MAR · read September 14, 2026
Licensed
DEL PASO COUNTRY CLUB
Proprietary Private Security Officer Employer 1210 · SACRAMENTO · read September 14, 2026
Licensed
DELGADO AV
Alarm Company Operator 7785 · SIMI VALLEY · read September 14, 2026
Licensed
DELICATO VINEYARDS LLC
Proprietary Private Security Officer Employer 1516 · MANTECA · read September 14, 2026
Licensed
DELICE EXECUTIVE PROTECTION
Private Patrol Operator 121920 · RANCHO CUCAMONGA · read September 14, 2026
Licensed
DELMORE SECURITY SYSTEMS
Alarm Company Operator 1405 · EL TORO · read September 14, 2026
Licensed
DELNO TERRACE, INC.
Proprietary Private Security Officer Employer 1073 · FRESNO · read September 14, 2026
Licensed
DELTA ALARM SECURITY SYSTEMS, INC
Alarm Company Operator 3850 · SAN JOSE · read September 14, 2026
Licensed
DELTA ELITE ENTERPRISES
Proprietary Private Security Officer Employer 1704 · FRESNO · read September 14, 2026
Licensed
DELTA FORCE SECURITY PROTECTION SOLUTIONS
Private Patrol Operator 121565 · SACRAMENTO · read September 14, 2026
Licensed
DELTA HAWK PROTECTIVE AGENCY & INVESTIGATIONS
Private Patrol Operator 120019 · REDDING · read September 14, 2026
Licensed
DELTA ONE SECURITY INC
Private Patrol Operator 16731 · FAIRFIELD · read September 14, 2026
Licensed
DELTA PROTECTIVE SERVICES, INC.
Private Patrol Operator 15406 · STOCKTON · read September 14, 2026
Licensed
DELTA UNIT
Private Patrol Operator 121273 · LOS ANGELES · read September 14, 2026
Licensed
DELUCA ASSOCIATES INC DBA NATIONAL CINEMA SECURITY
Private Patrol Operator 17085 · CAMPBELL · read September 14, 2026
Licensed
DEM SECURITY SERVICES
Private Patrol Operator 122115 · SACRAMENTO · read September 14, 2026
Licensed
DEMPSEY ALARMS LLC
Alarm Company Operator 6771 · SAN DIEGO · read September 14, 2026
Licensed
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