Corporate Profile: The Master Lock Company

July 2, 2019

The Master Lock Company is dedicated to empowering people to live safer, more secure lives.  We’ve built trust with individuals and businesses by delivering strong, reliable solutions that protect valued assets and safeguard lives. And we’re just as proud of our long history as we are a trusted partner to our dedicated locksmith and security hardware customers.

Our pioneering founders, John Junkunc and Harry Soref, inventors and engineers, introduced many firsts to the industry, such as precision-machined, solid-body padlocks and laminated padlocks, ball-locking shackles, serviceable padlocks and even the dial combination lock. These innovative solutions built our iconic brands—American Lock® and Master Lock®—and represent our full suite of products specifically designed to deliver the quality, durability and superior security that suit commercial and residential requirements. 

Today, we carry forward their spirit of identifying customer needs and developing new products, like our Master Lock Vault Enterprise suite of Bluetooth® enabled hardware. We blend our industry findings with feedback from our locksmith partners to deliver enhanced solutions to our valued customers.

American Lock

Dedicated to the trade, American Lock has more than 100 years providing authentic, hardworking and dependable security products that perform with precision. American Lock is known for its high-quality, customizable lines of stainless-steel, steel, brass and aluminum solid-body padlocks. 

The new American Lock Multi-Cylinder Padlock continues the tradition of flexibility and convenience with a unique quick-change shackle and key-retaining converter. It’s the only padlock that accepts KIK and the nine most common padlock cylinders in a single lock body. It truly is the one lock that does more. 

American Lock remains the solid, dependable security commercial customers turn to when it matters.

Master Lock

Master Lock is recognized by consumers and professionals around the world as the leading authority in padlocks and security products. In addition to offering the largest range of padlock styles and a quality line residential door hardware, Master Lock now offers a full suite of Bluetooth® enabled hardware that is operated with Master Lock Vault Enterprise software and smartphone app, providing businesses a convenient way to control access, manage assets and improve accountability.

Introducing the Master Lock Bluetooth Door Controller. Easily installed, the Door Controller is a cost-effective option for commercial customers to manage access to doors with electric strikes or magnetic locks. Businesses of all sizes now have a smart, simple and secure way to realize the cost benefits and convenience of keyless security—across a single location or an entire enterprise—with the control, flexibility and accountability of Bluetooth-enabled hardware to manage access to many doors by many users.

Customers easily administer the intuitive Master Lock Vault Enterprise software to use the full suite of Master Lock Bluetooth hardware, enabling them to grant access to doors, locks and lock boxes, temporarily or on an ongoing basis. The software’s detailed audit trail feature tracks which doors or locks were accessed, by user and time.

Businesses and individuals turn to Master Lock for everything worth protecting.

At The Master Lock Company, our purpose is to provide peace of mind and protection where people live, work and play. It’s a responsibility we take seriously—one that guides us to fulfill the expectations of our customers every day. To learn more, visit