Bosch Security Systems
Manufacturer of CCTV, intrusion and fire alarm systems, access control, security management systems, and communications systems. Provides global support for consultants, system integrators, installers, wholesalers, and OEMs.
http://www.boschsecuritysystem.com/

Tyco Fire & Security
A division of Tyco International Ltd. Provides electronic security systems, fire protection, detection and suppression systems, sprinklers and fire extinguishers.
http://www.tycofireandsecurity.com/

UTC Fire & Security
Provides security and fire detection solutions throughout the world under the Chubb and Kidde brands.
http://www.utc.com/units/security.htm

DSC
Manufacturers of security, fire, and card access equipment including hardwired and addressable control panels, alarm devices, and central station receivers. Includes product information and distributor locator.
http://www.dsc.com/

Altronix Corporation
Manufacturer of electronics and high technology components for select industries, including alarms, power supplies, access control, CCTV and home automation.
http://www.altronix.com/

Chubb Security Systems
Provides security systems, CCTV, computerized alarm and access control systems.
http://www.chubbsecurity.com/

Noby UK Limited
Design, manufacture and distribution of fire and security alarm panels, power supplies, and communication devices. Headquarters in the United Kingdom.
http://www.noby.co.uk/

Digital Monitoring Products
American manufacturer of advanced security and fire alarm products. Available through professional alarm installing companies worldwide.
http://www.dmp.com/

Interlogix Inc
Provides electronic security, CCTV, and fire solutions for physical and online environments. (Nasdaq: ILXI).
http://www.gesecurity.com/portal/site/GESecurity

Chase Security Systems, Inc.
Manufacturer and distributor of security products including enclosures, racks, wire and metal products.Specializes in vehicle and access control towers and pedestals.
http://chasesec.com/