The Cortina Companies, 10706 Grand Ave, Franklin Park, IL 60131, US

Established in 1934, Rogan Corporation manufactures a range of plastic knobs. It provides clamping and control knobs in a variety of sizes, styles and materials. It offers knobs in black, white, red, grey, yellow and blue. The company supplies products to the medical, lawn and garden, appliance and recreation industries. Additionally, it offers various value-added secondary and finishing services that include pad printing, hot stamping, painting, laser etching, protective packaging, part machining, spring insertion, magnetic induction welding and testing. The company s manufacturing capabilities include process monitoring, automation, bar coding, supply chain management and record retention. Located in Northbrook, Ill., Rogan Corporation has ISO 9001:2000 certification.