Diversified Protection Systems, Inc. (DPSI) is a client’s single source provider for design, construction, installation and service of specialty systems, which support and maintain critical operations. DPSI’s life safety and cooling specialty systems provide 24-hour, 7-day protection of clean rooms, computer rooms, and telecommunication facilities, as well as high asset value facilities such as museums, libraries and entertainment entities.

Facilities Protection Systems are specialists in fire alarm and fire suppression systems. The company offers solutions such as clean agent fire suppression systems, fire alarm and life safety systems, fire sprinklers, and advanced fire detection systems.

Symons Fire Protection is one of San Diego's fire-life safety contractors, installing high quality fire sprinklers for projects ranging from new and existing homes to new commercial constructions and tenant improvements as well as fire alarm systems and ongoing service, maintenance and testing.

Velocity Fire Equipment Sales is a dealer/supplier of electric fire trucks, pumpers, foam systems, aerials, and other equipment in communities in Southern California, Nevada and Arizona. They are authorized dealers for Rosenbauer.