A1 Protective Services is headquartered in San Francisco, California and operates statewide. We have additional full-service branch offices in Oakland, Sacramento, and San Diego. A1 Protective Services was founded in 1995 in San Fransisco. The business is as an Economically Dis-Advantaged Woman-Owned enterprise and fully certified as a DBE company throughout state of California. A1 Protective Services is owned and operated by a retired law enforcement officer with military experience. Since our inception, we have served numerous clients such as Local and Federal Governments, Office Buildings, Residential Complex, Health Facilities, Cash Handling Services, Vehicle Patrol, Airports, Alarm Response, CCTV Monitoring and Special Events, to name a few. A1 Protective Services is a certified aviation security company. A1 Protective Services is totally committed to providing “excellence in the security industry.” Over the years, our dedication has led us to provide “Reliable Quality Service” to all of our clients.