Master Lock is a manufacturer of padlocks and security products that is headquartered in Oak Creek, Wisconsin. The company was founded in 1921 by Harry Soref, and it has since become one of the leading brands in the security industry. Master Lock's products include padlocks, combination locks, and other security devices for residential, commercial, and industrial use. The company has a global presence, with offices and manufacturing facilities in the United States, Europe, and Asia. Master Lock has received several awards for its innovative products and services, and it has been recognized as one of the most trusted brands in the security industry.