Twin Disc, Incorporated engages in the design, manufacture, and sale of marine and heavy duty off-highway power transmission equipment in the United States, the Netherlands, China, Australia, Finland, Italy, and internationally. The company operates in two segments, Manufacturing and Distribution. It offers marine transmissions, azimuth drives, surface drives, propellers, and boat management systems, as well as power-shift transmissions, hydraulic torque converters, power take-offs, industrial clutches, and controls and braking systems. The company also provides third-party manufactured products.