KGB Digital System Services has been protecting buildings across Northern California since 1996. We specialize in fire alarm service, test & inspection, UL listing, and monitoring - and we don’t leave until the job is done right.

Headquartered in San Jose, CA, The KGB Digital System Services LLC provides expert fire alarm, security and surveillance, IT, and commercial electrical services across the Bay Area. If you’ve had another company come out, charge you thousands, and leave the same problem behind - you’re not alone. At KGB DSS, we dig in, find the root cause, and fix it for good. From San Jose to San Francisco, from multifamily housing to pharmaceutical facilities, we’re the team buildings call when they need it done right the first time.