Marks USA
Marks USA is a division of NAPCO Security Technologies and a manufacturer of mechanical locking hardware for commercial, institutional, and multifamily applications.
Last updated September 10, 2026
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Overview
Marks USA, a division of NAPCO Security Technologies, is a manufacturer of high-quality mechanical locking hardware for commercial, institutional, and multifamily applications. It is an American manufacturer of door hardware products with manufacturing facilities in Amityville, NY, and is part of Napco Access, a division of NAPCO Security Technologies that brings together Alarm Lock, Marks USA, and Napco Access Pro. Marks USA offers locksets, exit devices, access control solutions, and trim designs, and is known for its durability, value, and architectural versatility.
History
Marks USA has become a leading proponent of Value Engineered solutions on a wide array of high-end projects. It is an American manufacturer of quality door hardware products with manufacturing facilities in Amityville, NY. Marks USA is now part of Napco Access, a new division of NAPCO Security Technologies, bringing together the expertise of Alarm Lock, Marks USA, and Napco Access Pro (formerly ContinentalAccess). Marks USA is a division of NAPCO Security Technologies and a leading manufacturer of high-quality mechanical locking hardware for commercial, institutional, and multifamily applications.
Products and positioning
Value Engineered solutions; leading proponent on high-end projects; known for durability, value, and architectural versatility.
M9900 & 8800 Exit Devices
Durable, Grade 1 exit devices offering the same durability & style of top brands, like Von Duprin ® 99 & 33A, but with savings of up to 40% plus the exclusive Marks Lifetime Warranty.
ArchiTech Series Networx Locks
An ideal access control solution; elegantly blending advanced wireless access control convenience within any décor, in an attractive, infinitely customizable designer locking form factor, in choice of trims and finishes.
Trim
Marks USA offers a great many designs of knobs, levers, turnpieces and pull handles in both brass and stainless steel. At this time, there are more than 90 designs available and more are being added constantly.
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