Nailor Industries, founded in 1971 and headquartered in Houston, manufactures air distribution and damper products for commercial, industrial and institutional buildings. Its damper catalogue includes dedicated leakage-rated smoke dampers for static smoke control and dynamic smoke management systems, combination fire and smoke dampers, multi-blade dynamic and static fire dampers and curtain fire dampers. The company is an AMCA member and states AMCA 500-L and AMCA 540 certified testing for its louvre range. It manufactures at Houston, Texas and North Las Vegas, Nevada.