Sargent & Greenleaf

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Sargent & Greenleaf

Sargent & Greenleaf
Sargent Greenleaf logo.jpg
Name Sargent & Greenleaf
Headquarters Nicholasville, Kentucky (USA)
Founded 1857
Founder(s) James Sargent
Padlocks, Lock cylinders, Electronic locks, Safe locks

Sargent & Greenleaf is an American lock manufacturer that produces medium and high security padlocks, lock cylinders, electronic locks, and safe locks. Sargent & Greneleaf is one of the oldest and well-known high-security lock manufacturers in the United States. They are best known for their electronic combination locks, mechanical safe locks, and high-security padlocks used by the United States military.



The James Sargent Lock Company was founded in 1857 by James Sargent.[1] In 1865, Sargent partnered with a Halbert Greenleaf, a former employer. The company was renamed to Sargent & Greenleaf and began operations in Rochester, NY. In 1869 the company got the first of many government contracts to design and produce safe locks for the U.S. Treasury Department.[2] During World War I and II they produced a wide variety of builder's hardware as well as many lock and safe designs. In 1974, S&G relocated to their current home of Nicholasville, Kentucky. In the late 1980s Sargent & Greenleaf began producing a variety of high-security padlocks for the U.S. government. Among these designs were the S&G 831 and S&G 833 models that use Medeco cylinders. Production of the popular 6120 electronic combination lock series began in 1993.

In 2005 Sargent & Greenleaf was acquired by The Stanley Works, an international tool and hardware manufacturer.

Lock Listing

Combination safe locks
Safe deposit box locks
Key operated safe locks
Electronical combination safe locks
Keyed padlocks
Keyless padlocks


  1. Sargent & Greenleaf: Company History.
  2. Sargent & Greenleaf: Company Info - Overview.

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