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
M & S SECURITY SERVICES INC
Private Patrol Operator 11158 · BAKERSFIELD · read September 14, 2026
Licensed
M & S SECURITY SERVICES INC
Alarm Company Operator 3791 · BAKERSFIELD · read September 14, 2026
Licensed
M K N
Private Patrol Operator 17894 · ALHAMBRA · read September 14, 2026
Licensed
M. A. D. SECURITY SERVICES, INC.
Private Patrol Operator 119812 · EL DORADO HILLS · read September 14, 2026
Licensed
M.C. DEAN INC
Alarm Company Operator 8018 · MC LEAN · read September 14, 2026
Licensed
M.E.H.C., INCORPORATED
Proprietary Private Security Officer Employer 996 · DIXON · read September 14, 2026
Licensed
M.I.B. EXECUTIVE PROTECTION
Private Patrol Operator 14442 · RIVERSIDE · read September 14, 2026
Licensed
M.J.M SECURITY PROTECTION OF LOS ANGELES
Private Patrol Operator 121841 · GRANADA HILLS · read September 14, 2026
Licensed
M.W.S. INTEGRATED SYSTEMS
Alarm Company Operator 5435 · CARMICHAEL · read September 14, 2026
Licensed
M&J SURF COMPANY
Alarm Company Operator 5811 · ALTA LOMA · read September 14, 2026
Licensed
M4 SECURITY GUARD SERVICE
Private Patrol Operator 121009 · CORONA · read September 14, 2026
Licensed
MACCESS, INC.
Private Patrol Operator 122729 · LOS ANGELES · read September 14, 2026
Licensed
MACE SECURITY ALARMS, INC
Alarm Company Operator 4273 · LOS OSOS · read September 14, 2026
Licensed
MACGAVIS SECURITY
Private Patrol Operator 122283 · HAYWARD · read September 14, 2026
Licensed
MADDISON GROUP INC.
Private Patrol Operator 120052 · SAN JOSE · read September 14, 2026
Licensed
MADE MAN PROTECTION LLC
Proprietary Private Security Officer Employer 1685 · FAIRFIELD · read September 14, 2026
Licensed
MADERA ARMED SECURITY PATROL
Private Patrol Operator 15220 · MADERA · read September 14, 2026
Licensed
MADERA PRIVATE SECURITY GUARD SERVICES
Private Patrol Operator 122155 · MADERA · read September 14, 2026
Licensed
MADI-PSGI
Private Patrol Operator 15182 · BELLEVILLE · read September 14, 2026
Licensed
MADRM, LLC DBA SPARC
Proprietary Private Security Officer Employer 1348 · SANTA ROSA · read September 14, 2026
Licensed
MAG INSTRUMENT, INC.
Proprietary Private Security Officer Employer 294 · ONTARIO · read September 14, 2026
Licensed
MAG SECURITY SERVICES
Private Patrol Operator 120883 · LOS ANGELES · read September 14, 2026
Licensed
MAGEN AM SECURITY
Private Patrol Operator 120715 · LOS ANGELES · read September 14, 2026
Licensed
MAGEN ELOHIM
Private Patrol Operator 122424 · IRVINE · read September 14, 2026
Licensed
MAGEN SECURITY, INC
Alarm Company Operator 5850 · VALLEY VILLAGE · read September 14, 2026
Licensed
MAGIC FLOWER LLC
Proprietary Private Security Officer Employer 1264 · SAN FRANCISCO · read September 14, 2026
Licensed
MAI SECURITY
Private Patrol Operator 119914 · ALPINE · read September 14, 2026
Licensed
MAIN PATROL, INC
Private Patrol Operator 121305 · STANTON · read September 14, 2026
Licensed
MAJOR ALARM
Alarm Company Operator 6264 · PETALUMA · read September 14, 2026
Licensed
MAJOR METROPOLITAN SECURITY INC
Alarm Company Operator 5537 · NORTHRIDGE · read September 14, 2026
Licensed
MAJOR SECURITY SERVICES
Private Patrol Operator 120566 · CHULA VISTA · read September 14, 2026
Licensed
MAJORS PROTECTIVE SERVICES
Private Patrol Operator 120791 · SEBASTOPOL · read September 14, 2026
Licensed
MAKERI SECURITY SERVICES, INC
Private Patrol Operator 122452 · LOS ANGELES · read September 14, 2026
Licensed
MALAN BEST SECURITY INC.
Private Patrol Operator 121346 · BEVERLY HILLS · read September 14, 2026
Licensed
MALIBU ESTATE PROTECTION
Private Patrol Operator 120788 · MALIBU · read September 14, 2026
Licensed
MALONE SECURITY INC
Private Patrol Operator 122793 · BAKERSFIELD · read September 14, 2026
Licensed
MAMMOTH MOUNTAIN SKI AREA, LLC
Proprietary Private Security Officer Employer 562 · MAMMOTH LAKES · read September 14, 2026
Licensed
MANA ARMED GUARDS INCORPORATED
Private Patrol Operator 122093 · ROSEBURG · read September 14, 2026
Licensed
MANA GROUP, SECURITY & TRAINING CONSULTANTS INC.
Private Patrol Operator 120340 · HUNTINGTON BEACH · read September 14, 2026
Licensed
MANAGEMENT & TRAINING CORPORATION
Private Patrol Operator 15916 · CALEXICO · read September 14, 2026
Licensed
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