Outboard Marine Corporation - Wikipedia Outboard Marine Corporation (OMC) was a maker of Evinrude, Johnson and Gale Outboard Motors, and many different brands of boats. It was a multibillion-dollar Fortune 500 corporation. Evinrude began in Milwaukee, Wisconsin in 1907. OMC was based in Waukegan, Illinois. They also owned several lines of boats such as Chris Craft, Lowe Boats, Princecraft, Four Winns, American Marine & Motorsports in Shawano, WI | Green Bay, WI American Marine & Motorsports was founded 29 years ago on beautiful Shawano Lake in northeastern Wisconsin. We offer a boat repair shop, family boat rental shop and dealership for pontoon boats, aluminum fishing boats, wakeboarding, tubing and more!