Seakeeper, a company that made its name with marine ­gyrostabilizer systems, is now parlaying that reputation with the Ride system designed for automatic control of pitch and roll while underway.

Seakeeper has announced the addition of two new Ride underway stabilization systems designed for boats from about 37 to 42 feet in length overall. The Seakeeper Ride 750 and 750 Quad join ­Seakeeper’s ...