Software companies based in Michigan

thumb|225px|right|Stardock headquarters building Stardock Corporation is an American software development company founded in 1991 and incorporated in 1993 as Stardock Systems. Stardock initially developed for the OS/2 platform, but transitioned to Microsoft Windows with the collapse of the OS/2 ecosystem between 1997 and 1998. The company is best known for software that allow a user to modify or extend a graphical user interface as well as PC games, particularly strategy games such as the Galactic Civilizations series.

Compuware was an American software company based in Detroit. The company developed enterprise software primarily for mainframe computing environments and provided related services, including software testing, development, and performance management.

American Multinational Company