CLIR

ClearSign Technologies Corp. develops emission control technologies for industrial, commercial, and power-generation applications. Headquartered in Seattle, Washington, the company's core technology uses porous ceramic tiles and electrodynamic combustion control to reduce nitrogen oxide (NOx) emissions and improve fuel efficiency in burners and boilers. ClearSign's solutions target process heaters in oil refineries, chemical plants, and other industrial facilities facing stringent environmental regulations. The company generates revenue through licensing its technology and providing engineering services for retrofit and new installations.