Addamax

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IndustrySoftware
Founded1986
FounderPeter A. Alsberg
Addamax
IndustrySoftware
Founded1986
FounderPeter A. Alsberg
HeadquartersChampaign, Illinois

Addamax was an American software company that developed Trusted operating systems based on UNIX System V and Berkeley Software Distribution (BSD) variants of UNIX.[1] The company was founded on January 13, 1986 in Champaign, Illinois by Peter A. Alsberg[2] and had a sales and development office in Gaithersburg, Maryland.

Addamax filed a high-profile antitrust lawsuit in 1991 against the Open Software Foundation (OSF), alleging that OSF created a cartel that controlled the UNIX operating system and exerted monopsony price fixing and led to the company going out of business.[3][4]

The company was dissolved on June 1, 1999.[2]

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