Category
page 1Technology companies established in 1929

Grumman
The Grumman Aircraft Engineering Corporation, later Grumman Aerospace Corporation, was a 20th century American producer of military and civilian aircraft. Founded on December 6, 1929, by Leroy Grumman and his business partners, it merged in 1994 with Northrop Corporation to form Northrop Grumman.
United Technologies Corporation
defunct American multinational conglomerate (1929–2020)

Martin-Baker
Martin-Baker Aircraft Company Limited is a British manufacturer of ejection seats and safety-related equipment for aviation. The company was originally an aircraft manufacturer before becoming a pioneer in the field of ejection seats. The company's headquarters are in Higher Denham, Buckinghamshire, England, with other sites in France, Italy and the United States.
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ARINC
Aeronautical Radio, Incorporated (ARINC), established in 1929, was a major provider of transport communications and systems engineering solutions for eight industries: aviation, airports, defense, government, healthcare, networks, security, and transportation. ARINC had installed computer data networks in police cars and railroad cars and also maintains the standards for line-replaceable units.