First Security Services has been a leading provider of comprehensive security services since 1966, offering security solutions throughout the Bay Area and surrounding counties. Among our clients are local businesses, property management companies, individuals and municipalities.

We offer a range of services including but not limited to: Private Security Guards, Vehicle Patrol, Alarm Response, Armed & Unarmed Security, Residential Security, Office & Construction Site Security, Loss Prevention, Special Event Security, Executive Protection & Corporate Security, Bodyguards, Water Usage Monitoring Security Guards