About Us

NEW! WE'RE NOW PART OF NAPCO ACCESS

Introducing Napco Access, a new division of NAPCO Security Technologies, a trusted leader in the security industry. By bringing together the expertise of Alarm Lock, Marks USA, and Napco Access Pro (formerly ContinentalAccess), we’ve created a single source and brand for our advanced electronic and mechanical locking solutions, as well as enterprise access control hardware and software.

This unified approach to all things access, allows us to deliver solutions that meet the changing needs of today’s security market. Napco Access is built to keep pace with the convergence of access control technologies and is powered by innovations like MVP Access™—our cloud-hosted platform. MVP Access™ seamlessly integrates Alarm Lock Trilogy Networx Access Locks, ArchiTech Designer Locks featuring Marks Designer Trim, and Continental Enterprise Controllers to deliver scalable, state-of-the-art security.

For locksmiths, dealers, and contract hardware professionals, Napco Access is your go-to for integrated, reliable access control solutions,sold through distribution and a Pro Dealer Group.

Marks USA: Mechanical Locking Solutions Built for Performance, Designed for Professionals

Marks USA, a division of NAPCO Security Technologies, is a leading manufacturer of high-quality mechanical locking hardware for commercial, institutional, and multifamily applications. Known for its durability, value, and architectural versatility, Marks products are trusted by locksmiths, contract hardware professionals, and specifiers nationwide.

Built to meet demanding performance standards, Marks USA locks combine long-lasting reliability with smart design—offering a wide range of customizable solutions to suit nearly any opening or security need.

Our Core Offerings Include:

Heavy-Duty Mortise & Cylindrical Locksets
Engineered for strength and reliability, Marks locksets are BHMA/ANSI certified and available in multiple functions, backsets, and finishes.
Architectural Leversets & Trim Options
Choose from over 300 designer trims and finishes to match modern and classic interiors, retrofit existing hardware, or meet OEM requirements.
Exit Devices & Panic Hardware
Ideal for commercial rear and emergency egress doors, with models to suit a variety of door sizes and traffic conditions.
Indicator Locksets
Featuring high-visibility red/green occupancy indicators, these locks are a popular choice for privacy applications in restrooms, classrooms, and shared spaces.
Multifamily/MDU Deadbolts
Designed for today’s modern residential environments, Marks MDU solutions are available as standalone deadbolts or integrated with electronic access platforms like NAPCO's MVP Access^™ and CA4K^® enterprise systems.
Ligature-Resistant Hardware
Specialized solutions designed for behavioral healthcare, detention, and other life-safety environments, meeting the highest safety and anti-ligature standards.
Lifesaver Locking Solutions designed for Healthcare
Ornamental Iron & Gate Locks

Why Choose Marks USA?

Proven performance in the field across education, healthcare, housing, retail, and commercial sectors
Broad catalog of mechanical and electromechanical options
Flexible customization for project-specific applications
Made for professionals—available through locksmith and commercial hardware distribution nationwide

With a longstanding reputation for craftsmanship and innovation, Marks USA continues to evolve its product lines to meet the needs of today's security-conscious markets—delivering mechanical hardware that’s both built to last and made to match.

Explore the full catalog and specification tools at www.marksusa.com

Corporate Line Card

The Marks USA Line of Products

Marks USA provides the following security and lockset solutions:

Lifetime Mechanical Limited Warranty: MARKS USA proudly warrants that its products are free from defects in materials and workmanship. This warranty is limited to the lifetime of the door on which our lock is installed. In the event our product does not conform to this warranty, MARKS USA will repair or replace the product free of charge. This warranty does not cover defects or damage arising from improper installation, lack of or improper maintenance, improper storage, shipping and handling, ordinary wear and tear, misuse, abuse, accident, unauthorized service, or use with unauthorized non-MARKS products or parts. We reserve the right to make changes in materials, components or manufacturing methods. Liability under all warranties expressed or implied is limited to replacement of the defective goods. This warranty does not cover nor provide for the reimbursement or payment of incidental or consequential damages. (Note: The company will not warrant ANSI A156.2 Grade 2 lever product misapplications i.e., installed in educational facilities and/or student housing.)

BUY AMERICAN
Marks USA has made compliance with the Buy American Act (BAA) and American Recovery & Reinvestment Act (ARRA) easy. Marks USA is an American manufacturer of quality door hardware products with manufacturing facilities in Amityville, NY. Marks USA is an American brand trusted throughout the door hardware industry.

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