Rational Team Concert

Rational Team Concert (almsuit)
Full NameRational Team Concert
Short NameTeamConcert
CompanyIBM
Webhttps://jazz.net/products/rational-team-concert/
Snippet from Wikipedia: Rational Software

Rational Machines was founded by Paul Levy and Mike Devlin in 1981 to provide tools to expand the use of modern software engineering practices, particularly explicit modular architecture and iterative development. It changed its name in 1994 to Rational Software, and was sold for US$2.1 billion (equivalent to current US$2.92 billion) to IBM on February 20, 2003.