Master Lock, a leading name in security products, was founded in 1921 by Harry Soref in Milwaukee, Wisconsin. Soref's vision was to create a padlock that combined strength and reliability, leading to the invention of the first laminated steel padlock. This innovation revolutionized the security industry, offering a level of durability previously unseen. During World War II, Master Lock also contributed to the war effort by producing locks and securing materials critical to military operations. Over the decades, the company expanded its expertise, becoming a trusted brand synonymous with quality and innovation in the security sector.

Today, Master Lock offers a diverse range of products designed to meet various security needs. Their lineup includes padlocks, combination locks, and key safes for residential, commercial, and industrial use. The company also excels in cutting-edge smart security solutions, such as Bluetooth-enabled padlocks and digital lockboxes. Additionally, they produce specialty locks for applications like securing bikes, luggage, and outdoor equipment. With nearly a century of experience, Master Lock continues to innovate, blending traditional craftsmanship with modern technology to provide reliable security solutions for customers worldwide.