Contract Engineering and Manufacturing (CEM) was founded in early 2000.Our 30,000 sq. ft. facility was built to house the merger of two companies, 4Di and Flowtronics, combining over 40 years of experience in the design, engineering, and manufacturing of printed circuit boards. CEM has full in-house turnkey capabilities along with a fully staffed purchasing department. We pride ourselves on giving you, the customer, the best quality and service around.