Coskata, Inc. ·
Ditech ·
DMAX (engines) (50%) ·
GM Europe ·
GM Performance Division ·
GM Powertrain Europe ·
General Motors Canada ·
General Motors do Brasil ·
General Motors India ·
General Motors Research Laboratories ·
General Motors South Africa ·
GM Goodwrench ·
GM Service and Parts Operations ·
GMAC (49%) ·
GMAC Real Estate ·
GMAC-RFC ·
Holden ·
Holden New Zealand ·
Holden Special Vehicles ·
Hughes Research Laboratories ·
Hummer ·
Isuzu Motors Polska ·
Nuvell Financial Services ·
OnStar ·
Opel ·
Opel Performance Center ·
Saturn Corporation
Defunct/Former Divisions
Allison Engine Company (1929-1995) ·
Allison Transmission (1929-2007) ·
Atlantic Aircraft ·
Dayton-Wright Company (1919-1923) ·
Delco Electronics ·
Delphi Automotive Systems ·
Detroit Diesel (1938-1988) ·
DirecTV (1994-2003) ·
Electro-Motive Diesel (1930-2004) ·
Electronic Data Systems (1984-1996) ·
Euclid Trucks (1953-1968) ·
Fisher Body ·
Fleetwood Metal Body ·
Frigidaire (1919-1980) ·
Fuji Heavy Industries (20%) (-2005) ·
General Motors Diesel Division (1938–1987) ·
General Motors Diesel (1949–1969) ·
Ghandhara Industries (-1963) ·
GM Defense (1950–2003) ·
GM Truck & Coach Group ·
GMC Heavy Trucks ·
Hughes Aircraft (1985-1997) ·
Hughes Electronics (1985-1997]] ·
Hughes Network Systems (1987-2003) ·
HughesNet (DirecWay/DirecPC)(1996-2003) ·
Kettering University ·
National City Bus Lines ·New Venture Gear 36% (1990-2002) ·
North American Aviation (1933-1948) ·
PanAmSat (1995-2003) ·
Remy Electric (1918-1994) ·
Rochester Products Division ·
Terex ·
Terminal Taxi Cab ·
Winton Motor Carriage Company ·
Yellow Coach (1925-1943)