Delta Power Company is one of the leading designers and manufacturers of electric and power products in the United States. Based in Rockford, Ill., the company offers a range of products, including solenoid-operated directional controls, pressure controls, proportional controls, logic elements and coils. Additionally, it provides electronic joysticks, switches and special application valves. The company has a number of distributors, such as Fullmark, Joymatic S A de CV, Kinecor and Berendsen Fluid Power. It is a supplier of transmission control products to the John Deere Power Systems Division. Delta Power Company is an ISO 9001:2008 certified and Underwriters Laboratories Inc. (UL) registered firm.