CornellCookson LLC is a leading rolling door and grille manufacturer with facilities in Mountain Top, PA and Goodyear, AZ. Formed when Cornell Iron Works acquired the Cookson Company, the company produces custom closure solutions found in stadiums, hospitals, hotels and museums, along with a variety of facilities where reliability, security and life safety is vital. As the nationwide leader in overhead rolling doors and security grilles, CornellCookson is committed to providing high-quality, domestically-manufactured solutions, and its brands have operated within the United States since 1828. Products are sold through a network of more than 700 Cornell and Cookson dealer partners worldwide to ensure competitive pricing through equal and alternate brands.