Since 1944, Commercial Electric Motor Service Inc.(CEMSI) has provided an ever-expanding line of AC and DC motors, controls, variable frequency drives and replacement parts to companies throughout the United States. Over the years, CEMSI has developed partnerships with the industries top suppliers. This has provided us with the opportunity to offer you the Mid-West's largest stock of products at the best prices available. CEMSI's technical sales and support staff is made up of three generations with over 120 combined years of experience and technical knowledge available to provide you, our customer, with the proper product and information needed for your application. With the help of freight trucks and daily UPS services, our St. Louis based company can provide you with the product you need, regardless of your location. You can receive your product where and when you need it, even overnight.