Sargent & Greenleaf

Sargent & Greenleaf, Inc., more commonly known among Safe and Vault technician circles as S&G, is a U.S. company that manufactures combination locks, key-operated safe and safe deposit box locks, high security military padlocks, and associated equipment.

History
James Sargent founded the James Sargent Lock Company in 1857. In 1864, he moved to Rochester, New York and the company was later renamed Sargent & Greenleaf. Halbert S. Greenleaf, a former employer of Mr. Sargent, joined the firm as an equal partner in 1865.

The company is currently headquartered in Nicholasville, Kentucky. It is a subsidiary of Stanley Security Solutions.