Kelso Technologies Inc. develops, produces, and distributes proprietary equipment used in transportation applications in the United States and Canada. It offers rail and road transport equipment, such as pressure relief, vacuum relief, bottom outlet, pressure car pressure relief, pressure car angle, and top ball valves; and one-bolt manways and related equipment, emergency response equipment, and no spill locomotive fueling equipment; and other specialty valves, parts, equipment, and services. The company was formerly known as Kelso Resources Ltd. and changed its name to Kelso Technologies Inc. in July 1994. Kelso Technologies Inc. was incorporated in 1987 and is headquartered in Surrey, Canada.