The Door & Access Systems Manufacturers Association (DASMA) is the leading trade association for North America’s door and access systems industry. Our members manufacture garage doors, rolling doors, high-performance doors, operators, gate systems, and access control products. Based in Cleveland, Ohio, DASMA has more than 100 member companies representing over 95% of the U.S. market, with products distributed in every state, every Canadian province, and more than 70 countries worldwide.