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Founder Profile

Leroy Grumman

Last reviewed: October 2026 · By Swet Parvadiya

Who is Leroy Grumman?

Leroy Grumman is a founder of Northrop Grumman Corporation, which was founded in 1994 with Jack Northrop.

Company founded
Northrop Grumman Corporation
Founded
1994
Co-founders
Jack Northrop

Background

Leroy Randle Grumman was born in Huntington, New York in 1895 and studied mechanical engineering at Cornell University before serving as a Navy pilot during World War I. He worked briefly at Loening Aeronautical Engineering before co-founding Grumman Aircraft Engineering Corporation in December 1929 with Leon Swirbul and several colleagues in a garage in Baldwin, Long Island. Grumman was an engineer's engineer, hands-on, methodical, and committed to building aircraft that could withstand the severe operating environment of carrier aviation. His company's reputation for reliability and structural toughness made it the Navy's preferred aircraft supplier for three decades.

Founding Story

Leroy Grumman co-founded Grumman Aircraft Engineering Corporation in December 1929 in Baldwin, Long Island, New York, establishing one of the most distinguished naval aircraft manufacturers in American history. A Cornell-trained mechanical engineer and World War I Navy pilot, Grumman built his company on the singular insight that carrier aircraft operated in one of the most demanding environments in aviation, they had to be fast enough to fight, strong enough to survive hard deck landings, and reliable enough to be maintained at sea with limited tools and personnel. The F4F Wildcat and F6F Hellcat produced by his company during World War II helped establish American air superiority in the Pacific. The Lunar Module, built by Grumman engineers, which carried the twelve astronauts who walked on the Moon, represents one of the most consequential engineering deliverables in human history. Grumman retired from active management in 1966 but remained associated with the company until his death in 1982. The company that bears his name merged with Northrop Corporation in 1994 to form Northrop Grumman, and its naval aviation heritage endures in the E-2D Advanced Hawkeye still produced today.

Education: Cornell University College of Engineering; Huntington High School. Leroy Grumman was born in 1895.

Sources

Content is for informational purposes only. Not financial advice. Data sourced from SEC filings, annual reports, and public records. See our full disclaimer and methodology.