Sloan is the world's leading manufacturer of commercial plumbing systems and has been in operation since 1906. Headquartered in Franklin Park, Illinois, the company is at the forefront of the green building movement and provides sustainable restroom solutions by manufacturing ...Sloan is the world's leading manufacturer of commercial plumbing systems and has been in operation since 1906. Headquartered in Franklin Park, Illinois, the company is at the forefront of the green building movement and provides sustainable restroom solutions by manufacturing water and energy-efficient products such as flushometers, electronic faucets, sink systems, soap dispensing systems and vitreous china fixtures for commercial, industrial and institutional markets worldwide.