Kopin, 200 John Hancock Rd, Taunton, MA 02780, US

Founded in 1932, Westerbeke Corporation designs, manufactures and supplies diesel and gasoline marine engines and generators, industrial diesel generators and marine air conditioners. It has extensive in-house design and machining capability, which utilizes computer-aided design and manufacturing, as well as computerized numerical control equipment to produce complex components such as manifolds, bell housings, sound guards and accessories. The Company markets its products under the brand names of Westerbeke, Universal and Rotary Aire. It also offers online order placement services. Its clients include Chris-Craft, Catalina Yachts, Beneteau, Cabo Yachts, Jefferson Yachts, Regal Marine, Robertson & Caine and Valiant Yachts. It is located in Taunton, Mass.