Twin Disc, Incorporated designs, manufactures, and sells marine and heavy duty off-highway power transmission equipment worldwide. Its product portfolio includes marine transmissions, surface drives, propellers, and boat management systems, as well as power-shift transmissions, hydraulic torque converters, power take-offs, industrial clutches, and controls systems. The company sells its products to customers primarily in the pleasure craft, commercial, and military marine markets, as well as in the energy and natural resources, government, and industrial markets through direct sales force and distributor network. Twin Disc, Incorporated was founded in 1918 and is headquartered in Racine, Wisconsin.