Find the 2 Best Security Companies in Sunnyvale, CA

Foster Brothers provides comprehensive security solutions including high-security locks, access control systems, and door hardware services. With over six decades of experience serving businesses and industrial clients in the San Francisco Bay Area, we combine technical expertise with 24-hour emergency response capabilities. Our factory-certified technicians deliver reliable, cost-effective security installations tailored to commercial and industrial needs.

Sight & Sound Security delivers innovative home automation and security solutions in Sunnyvale, CA. Specializing in entertainment systems, lighting control, and surveillance since 1993, we serve residential and commercial clients with 5,000+ installations. Our licensed experts provide 24/7 monitoring and customized smart home systems.