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
NOB HILL SECURITY
Private Patrol Operator 119829 · SAN FRANCISCO · read September 14, 2026
Licensed
NOBELGUARD SECURITY
Private Patrol Operator 122137 · EL CAJON · read September 14, 2026
Licensed
NOBILITY SECURITY AND MARITIME SOLUTIONS
Private Patrol Operator 120098 · VACAVILLE · read September 14, 2026
Licensed
NOBLE SECURITY SERVICES, INC
Private Patrol Operator 122021 · ELK GROVE · read September 14, 2026
Licensed
NOIRON ALARM SYSTEMS, INC.
Alarm Company Operator 4528 · GLENDORA · read September 14, 2026
Licensed
NOLAN ENTERPRISE
Private Patrol Operator 119927 · BAKERSFIELD · read September 14, 2026
Licensed
NON-STOP SECURITY SERVICES
Private Patrol Operator 17355 · WHITTIER · read September 14, 2026
Licensed
NOR CAL ALARM
Alarm Company Operator 7651 · LOOMIS · read September 14, 2026
Licensed
NOR-CAL PRIVATE SECURITY SERVICES
Private Patrol Operator 120036 · HAYWARD · read September 14, 2026
Licensed
NOR-CAL SECURITY
Private Patrol Operator 12738 · WEST SACRAMENTO · read September 14, 2026
Licensed
NOR-CAL SECURITY & LOW VOLTAGE SERVICES
Alarm Company Operator 7836 · MODESTO · read September 14, 2026
Licensed
NORCAL ALARM, INC.
Alarm Company Operator 6260 · REDWOOD CITY · read September 14, 2026
Licensed
NORCAL MOTOR ESCORT CORPORATION
Private Patrol Operator 121230 · SAN JOSE · read September 14, 2026
Licensed
NORCAL PRIVATE PROTECTION
Private Patrol Operator 119906 · FAIRFIELD · read September 14, 2026
Licensed
NORDSTAR ALLIANCE CORP
Private Patrol Operator 122575 · LOS ANGELES · read September 14, 2026
Licensed
NORRIS SECURITY SERVICES
Alarm Company Operator 8203 · MURRIETA · read September 14, 2026
Licensed
NORSE SECURITY
Alarm Company Operator 5869 · REDONDO BEACH · read September 14, 2026
Licensed
NORSEC SECURITY
Private Patrol Operator 122218 · LAKE ELSINORE · read September 14, 2026
Licensed
NORTH AMERICAN SECURITY AND INVESTIGATIONS, INC.
Private Patrol Operator 119892 · CARSON · read September 14, 2026
Licensed
NORTH AMERICAN SECURITY SYSTEMS
Alarm Company Operator 5713 · WHITTIER · read September 14, 2026
Licensed
NORTH BAY AVS DESIGN
Alarm Company Operator 8077 · SANTA ROSA · read September 14, 2026
Licensed
NORTH COAST MANAGEMENT INC
Proprietary Private Security Officer Employer 919 · HEALDSBURG · read September 14, 2026
Licensed
NORTH COAST PATROL, INC.
Private Patrol Operator 14996 · ESCONDIDO · read September 14, 2026
Licensed
NORTH COAST VILLAGE CONDOMINIUM ASSOCIATION
Proprietary Private Security Officer Employer 902 · OCEANSIDE · read September 14, 2026
Licensed
NORTH EAST MEDICAL SERVICES
Proprietary Private Security Officer Employer 1792 · DALY CITY · read September 14, 2026
Licensed
NORTH REGION PATROL PROTECTIVE SVS
Private Patrol Operator 15181 · ESCONDIDO · read September 14, 2026
Licensed
NORTH STAR SECURITY SOLUTIONS
Private Patrol Operator 17157 · GLENDORA · read September 14, 2026
Licensed
NORTH STATE SECURITY INC
Private Patrol Operator 11442 · REDDING · read September 14, 2026
Licensed
NORTH VALLEY BAPTIST CHURCH OF SANTA CLARA
Proprietary Private Security Officer Employer 806 · SANTA CLARA · read September 14, 2026
Licensed
NORTH VALLEY ELECTRIC
Alarm Company Operator 8205 · HILMAR · read September 14, 2026
Licensed
NORTHEAST PATROL, INC.
Private Patrol Operator 121529 · ROWLAND HEIGHTS · read September 14, 2026
Licensed
NORTHEASTERN UNIVERSITY
Proprietary Private Security Officer Employer 1589 · BOSTON · read September 14, 2026
Licensed
NORTHPOINT SECURITY SERVICES
Private Patrol Operator 15383 · OAKLEY · read September 14, 2026
Licensed
NORTHRIDGE HOSPITAL MEDICAL CENTER DBA DIGNITY HEALTH
Proprietary Private Security Officer Employer 16 · NORTHRIDGE · read September 14, 2026
Licensed
NORTHROP GRUMMAN CORPORATION AEROSPACE SYSTEMS
Proprietary Private Security Officer Employer 507 · REDONDO BEACH · read September 14, 2026
Licensed
NORTHSTAR ALARM SERVICES LLC
Alarm Company Operator 6785 · LEHI · read September 14, 2026
Licensed
NORTHSTAR AT TAHOE
Private Patrol Operator 6405 · TRUCKEE · read September 14, 2026
Licensed
NORTHWEST SECURITY, INC.
Alarm Company Operator 6296 · SAN FRANCISCO · read September 14, 2026
Licensed
NORVEX SECURITY
Private Patrol Operator 122623 · LAKESIDE · read September 14, 2026
Licensed
NOVA SECURITY
Alarm Company Operator 5672 · EL CAJON · read September 14, 2026
Licensed
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