Marks USA

Marks USA, a division of NAPCO Security Technologies, was established in 1977 as a mortise lock manufacturing company and has expanded into a comprehensive product line of architectural-grade, code-compliant life safety, mortise, cylindrical, and tubular locksets. Based in Amityville, New York, Marks USA has built a reputation for durability, value, and architectural versatility, with mortise locks trusted for their long life and ability to excel in high-traffic, high-abuse areas. Known for value-engineered solutions, Marks products are specified by locksmiths, contract hardware professionals, and specifiers nationwide for commercial, institutional, and multifamily applications.

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Since 1938, American Doors has supplied commercial doors, frames, and hardware across the U.S., growing from a Houston-based distributor into a multi-market platform serving contractors throughout Texas and Colorado. Family-owned for more than 85 years, we emphasize continuity and craftsmanship, with AHC-certified hardware specialists and experienced estimators delivering fully coordinated Division 8 and Division 10 solutions from specification through installation.

1 (713) 681-8047

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American Doors is part of Riverbend Industries, a family-owned industrial group focused on building durable, operating businesses.

Riverbend partners with management teams for the long term—investing in people, systems, and manufacturing capability while preserving the culture and accountability that make each business successful.

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williams InOvate Dryer Products Cozy Heating Systems

Quality Mortise Lock Manufacturing Since 1977

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