Richardson Electronics, Ltd

Grayhill is a leading designer and manufacturer of DIP, tact, pushbutton, rotary and encoder switches, keyboards, keypads and front panels, I/O modules, control systems, and wireless products. The privately held firm was started in 1943 to manufacture miniature precision components for the electronics industry. The company produces high quality components for commercial, industrial and military markets. In addition to engineering and manufacturing, Grayhill sells internationally through independent local manufacturers' representatives and a network of local, regional, and national stocking component distributors for switch products and industrial distributors for industrial control products. The company employs 600 people in its four worldwide locations LaGrange and Carpentersville, Ill., Iola, Wis., and Shenzhen, China.

Founded in 1946, Switchcraft is a manufacturing company that provides a range of connectors, jacks, plugs, molded cable assemblies and switches throughout the United States. It offers molding, stamping, plating, machining and assembly services. The company also meets the demands of Semko, Demko and Nemko agencies. Switchcraft provides products under the Q-G, StudioPatch and Dual-Jax series. In addition, it serves clients in the medical, process control, transportation, homeland security and broadcast industries. The company operates a subsidiary, Conxall. Switchcraft also has a more than 180,000-square-foot facility in Chicago. It has achieved ISO 9001 certification. Additionally, the company has a network of distributors in Canada, China, Germany, India and Turkey.