Kelso Technologies Inc. designs, manufactures, and supplies its own specialized equipment for various transportation applications throughout the United States and Canada. The company's diverse product portfolio includes a comprehensive range of railway components such as bottom outlet, pressure relief, vacuum relief, and check valves, as well as one-bolt manways, pressure cars, pressure differential parts, tank gauges, laboratory test equipment, and wheel cleaners. Beyond rail, Kelso also provides emergency response kits and fueling valves. For the trucking sector, their offerings extend to one-bolt manways and crucial pressure/vacuum safety valves specifically for tank trailers. Furthermore, they supply robust suspension systems designed for fleet vehicles that operate in challenging wilderness environments. Established in 1987, the company was initially known as Kelso Resources Ltd. before adopting its current name, Kelso Technologies Inc., in July 1994. Its corporate headquarters are located in Surrey, Canada.