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
DENALECT ALARM CO
Alarm Company Operator 255 · WALNUT CREEK · read September 14, 2026
Licensed
DEPENDABLE ALARM SYSTEMS
Alarm Company Operator 177 · ESCONDIDO · read September 14, 2026
Licensed
DEPENDABLE PRIVATE SECURITY SERVICE, INC
Private Patrol Operator 121644 · VAN NUYS · read September 14, 2026
Licensed
DESERT ALARM
Alarm Company Operator 4296 · PALM DESERT · read September 14, 2026
Licensed
DESERT ALARM PATROL DIVISION
Private Patrol Operator 120688 · PALM DESERT · read September 14, 2026
Licensed
DESERT PROTECTION
Private Patrol Operator 13802 · CATHEDRAL CITY · read September 14, 2026
Licensed
DESERT RESORT MANAGEMENT
Private Patrol Operator 17681 · PALM DESERT · read September 14, 2026
Licensed
DESERT SERVICES 3 SECURITY
Private Patrol Operator 16967 · INDIO · read September 14, 2026
Licensed
DESIGNER SOUND SECURITY SYSTEMS
Alarm Company Operator 3393 · VAN NUYS · read September 14, 2026
Licensed
DETECTION INSTRUMENTS SECURITY GROUP
Alarm Company Operator 6631 · ALTA LOMA · read September 14, 2026
Licensed
DEVOY SECURITY GROUP
Private Patrol Operator 121246 · VISALIA · read September 14, 2026
Licensed
DFM PROTECTION AND CONSULTING
Private Patrol Operator 120588 · VISALIA · read September 14, 2026
Licensed
DG GUARDS & PATROL
Private Patrol Operator 122805 · BAKERSFIELD · read September 14, 2026
Licensed
DGA SECURITY SYSTEMS, INC.
Alarm Company Operator 8063 · YORBA LINDA · read September 14, 2026
Licensed
DGP INTERNATIONAL
Private Patrol Operator 18070 · MOORPARK · read September 14, 2026
Licensed
DHS BUSINESS MANAGEMENT LLC
Proprietary Private Security Officer Employer 1817 · PALM SPRINGS · read September 14, 2026
Licensed
DIADEM INTERNATIONAL PROTECTIVE SERVICES
Private Patrol Operator 120819 · SAN BERNARDINO · read September 14, 2026
Licensed
DIAL ONE MOORE ASSOCIATES SECURITY SYSTEMS
Alarm Company Operator 6358 · CHINO HILLS · read September 14, 2026
Licensed
DIAL SECURITY
Alarm Company Operator 489 · CAMARILLO · read September 14, 2026
Licensed
DIAL SECURITY
Private Patrol Operator 6607 · CAMARILLO · read September 14, 2026
Licensed
DIAMOND COMMUNICATIONS INC
Alarm Company Operator 3229 · MADERA · read September 14, 2026
Licensed
DIAMOND SECURITY ENTERPRISES INC
Alarm Company Operator 7086 · RESEDA · read September 14, 2026
Licensed
DIAMOND SECURITY SERVICES, INC.
Private Patrol Operator 121353 · HAWTHORNE · read September 14, 2026
Licensed
DIAMOND STRATEGIC SOLUTIONS
Private Patrol Operator 121658 · DANVILLE · read September 14, 2026
Licensed
DICOR SECURITY
Private Patrol Operator 13712 · CLAYTON · read September 14, 2026
Licensed
DIETZ ASSOCIATES INC
Private Patrol Operator 16739 · SAN JOSE · read September 14, 2026
Licensed
DIFAI SECURITY
Private Patrol Operator 10733 · LOS ANGELES · read September 14, 2026
Licensed
DIGITAL AGE HOUSING, LLC
Proprietary Private Security Officer Employer 1643 · OAKLAND · read September 14, 2026
Licensed
DIGITAL INSTALLERS, INC.
Alarm Company Operator 7839 · LONG BEACH · read September 14, 2026
Licensed
DIGITAL PROTECTION SERVICES
Alarm Company Operator 7388 · CLOVIS · read September 14, 2026
Licensed
DIGITAL SECURITY COMMUNICATIONS
Alarm Company Operator 3127 · LAGUNA NIGUEL · read September 14, 2026
Licensed
DIGITAL VISIONS SECURITY
Alarm Company Operator 8271 · GILROY · read September 14, 2026
Licensed
DIGITECH
Alarm Company Operator 7248 · QUARTZ HILL · read September 14, 2026
Licensed
DIGNITY COMMUNITY CARE DBA CALIFORNIA HOSPITAL MEDICAL CENTER - LOS ANGELES
Proprietary Private Security Officer Employer 1152 · LOS ANGELES · read September 14, 2026
Licensed
DIGNITY COMMUNITY CARE DBA FRENCH HOSPITAL MEDICAL CENTER
Proprietary Private Security Officer Employer 1154 · SAN LUIS OBISPO · read September 14, 2026
Licensed
DIGNITY COMMUNITY CARE DBA METHODIST HOSPITAL OF SACRAMENTO
Proprietary Private Security Officer Employer 1157 · SACRAMENTO · read September 14, 2026
Licensed
DIGNITY COMMUNITY CARE DBA WOODLAND MEMORIAL HOSPITAL
Proprietary Private Security Officer Employer 1160 · WOODLAND · read September 14, 2026
Licensed
DIGNITY HEALTH
Proprietary Private Security Officer Employer 1016 · RANCHO CORDOVA · read September 14, 2026
Licensed
DIGNITY HEALTH - MERCY MEDICAL CENTER MT. SHASTA
Proprietary Private Security Officer Employer 1382 · MOUNT SHASTA · read September 14, 2026
Licensed
DILIGENCE SECURITY GROUP
Private Patrol Operator 120856 · read September 14, 2026
Licensed
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