Controlled Key Systems, Inc. is a California licensed lock and security equipment contractor. Our specialties include master key and key control systems, access control systems, architectural hardware systems sales, installation and service for CCTV surveillance cameras and safes. History Controlled Key Systems began in 1983, and is dedicated to the commercial, industrial, asset management, and government sectors. We have always held the belief that a strong customer relationship is more important than the sheer volume of installation and service calls. Our beliefs have been confirmed by our customer list. We also possess an in-depth knowledge of access control, CCTV systems, burglar alarms, master key system design, implementation and control, and are certified dealers for many brands of these products. A fleet of thirteen, fully stocked, service vehicles allows us to respond to our customers' needs in a very timely manner. Our team offers the full security package, including superior locksmith, access control, surveillance camera, and/or burglar alarm service. Call us at Controlled Key Systems, Inc. and let us help you. Thank you from everyone at Controlled Key Systems, Inc., we look forward to working with you.