CMC Electronics Holdings is a Canadian company that specializes in the design, manufacture, and support of advanced electronics systems for the aerospace and defense industries. The company was founded in 1903 and is headquartered in Saint-Laurent, Quebec. CMC Electronics Holdings offers a wide range of products and services, including avionics systems, flight management systems, and electronic flight bags. The company is committed to providing innovative solutions to its customers and has won several awards for its products and services.