Since being founded in 1975, Cartell has been a pioneer and innovator in vehicle detection systems for consumers. Its parent company, Preferred Technologies Group, manufactures the Cartell brand to offer homeowners and businesses ultra-reliable, top-quality driveway alarm and free exit systems that provide safety, peace of mind and convenience.

Established in 2005, Cultris Security Systems Inc. is a full-service fire, security, access control, video and communications company. They specialise in intrusion detection, access control, and video surveillance systems for commercial and residential customers.

Harris County Universal Services is the solutions center for the departments and offices of Harris County. It designs, implements and maintains high-quality, innovative and cost-effective technology products and services for its customers. It provides comprehensive support through divisions: Business Applications, Business Operations, Customer Service, Cybersecurity, Fleet Services, Information Technology Infrastructure, Public Safety Technology.

Texas Technical Services, Inc. (TTSI) is a full service security systems and parking access revenue control systems (PARCS) integrator providing turnkey services including design, installation, service and maintenance. TTSI represents the top tier manufacturers in access control, IP video solutions, alarm technology and parking access revenue control systems.