Markenrich Corporation was founded in 1979. It began by designing and implementing custom test equipment for the electronics industry. Shortly thereafter the company began specializing in relay testers. Today Markenrich is the premiere supplier of relay test equipment. The world will be depending upon electromechanical and reed relays for years to come and Markenrich will continue supporting the industry's test needs. The majority of relay manufacturers use our equipment in their manufacturing facilities. Other customers include the aerospace and defense industries, automotive, telecommunications and volume commercial users.