Thoma Bravo
private equity firm. Descendent firm of Golder Thoma Cressey Rauner
Vector Capital
Investor in established technology businesses
Welsh, Carson, Anderson & Stowe
Private equity firm; focuses on information/business services, and healthcare
TA Associates
Founded in 1968, TA Associates is one of the oldest and largest private equity firms in the world.
TPG Inc.
Private equity firm based in Forth Worth TX; found by David Bonderman and Jim Coulter in 1992
Sterling Partners
Chicago private equity firm specializing in buyout investments
New Mountain Capital LLC
Assets under management totaling more than $30 billion