License holder summary

KEYSTONE SECURITY SYSTEMS is a Security And Investigative - Alarm Company licensed to practice in California. The address on file for KEYSTONE SECURITY SYSTEMS is CASTRO VALLEY. This licensed professional license is not current. The license was granted 11/01/1988 and expired on 11/30/2006.

California

Department of Consumer Affairs

KEYSTONE SECURITY SYSTEMS
Security And Investigative - Alarm Company
License number
2971
Date granted
11/01/1988
Date expires
11/30/2006
Class
Security And Investigative - Alarm Company
Status
Canceled
Address
CASTRO VALLEY
californialicensing.org
ID 12226828
LAST UPDATED 2026-06-17 18:47:13 UTC

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