Company Story
1915 - James A. Allison founded the Indianapolis Speedway Team Company, which later became Allison Transmission.
1929 - The company was renamed Allison Engineering Company and began to focus on aircraft engines.
1941 - Allison Engineering Company began to develop and manufacture aircraft transmissions.
1946 - The company was renamed Allison Division of General Motors Corporation.
1963 - Allison began to develop and manufacture transmissions for medium- and heavy-duty commercial vehicles.
1970 - Allison introduced the first fully automatic transmission for buses.
1986 - Allison began to develop and manufacture transmissions for hybrid vehicles.
2007 - Allison Transmission, Inc. became an independent company, separated from General Motors Corporation.
2012 - Allison Transmission Holdings, Inc. went public with an initial public offering (IPO).