Twin Disc, Incorporated designs, manufactures, and sells marine and heavy-duty off-highway power transmission equipment. It operates in two segments, Manufacturing and Distribution, and offers marine transmissions, azimuth drives, surface drives, propellers, boat management systems, power-shift transmissions, hydraulic torque converters, power take-offs, industrial clutches, and controls and braking systems. The company also provides third-party manufactured products and sells through a direct sales force and distributor network to customers in the pleasure craft, commercial marine, patrol, and military marine markets, as well as in the energy and natural resources, government, agriculture, recycling, construction, oil and gas, and industrial markets. Incorporated in 1918, it is headquartered in Milwaukee, Wisconsin.