Porta-King is a leading manufacturer of prefabricated and modular buildings, shelters and towers including mezzanines, portable offices, toll booths, guard houses and much more. We offer our customers high quality and dependable products that serve as cost effective and time saving construction substitutes. Porta-King provides a wide variety of prefabricated building solutions for any type of work environment. In addition, our products can be customized to suit individual and unique company needs. With an emphasis on innovation and a dedication to customer service, we strive to bring convenience and dependability to the modular building industry. Porta-King is headquartered is in St. Louis, Missouri.