The Custom Electronic Design & Installation Association, or CEDIA, is an international trade association of companies. These companies specialize in planning and installing electronic systems for the home - typically media rooms, single or multi-room entertainment systems, home automation and communication systems, and integrated whole-house subsystems providing control of lighting, security and HVAC systems. The association was founded in September, 1989 and has a total membership of approximately 1,500 member companies.

CEDIA members are established, insured businesses with bona fide qualifications and experience in this specialized field. Member classifications include designer/installers, manufacturers, sales representatives, distributors, consultants and affiliates.