Thomas Butwin

Williams Controls, Inc. designs, manufactures and sells electronic throttle, pneumatic controls and electronic sensors for heavy trucks, transit buses, off-road equipment and military applications. Its electronic throttle controls send a signal proportional to throttle position to adjust the speed of electronically controlled engines. The company's pneumatic products are used for vehicle control system applications such as power take-offs and air-control applications. Its electronic sensors are a significant component of its electronic throttle controls. The firm also designs and manufactures a line of adjustable foot pedals and arm rests and sells its products globally. Williams Controls was founded by Norman C. Williams in 1937 and is headquartered in Portland, OR.