The firm has launched various funds, such as: Notable transactions sponsored by THL include AbacusNext,[8] Aramark,[9][10] AutoStore,[11] Brooks Automation,[12] Ceridian,[13] CSafe,[14] Dunkin' Brands,[15] Experian,[16] Fidelity National Information Services,[17] FourKites, Hightower Advisors,[18] HomeSide Lending, Houghton Mifflin,[19] Syneos Health, Michael Foods,[20] The Nielsen Company,[21] ProSiebenSat.1, Smile Doctors, Snapple,[22] Warner Chilcott,[23] Warner Music Group,[24] and West Corporation.

[25] In 2004, THL completed a leveraged buyout acquisition of Refco, a financial services company specializing in commodities and futures contracts, which collapsed suddenly in October 2005 only months after its IPO.

[28] The company's going-out-of-business sales, approved two days before the filing, had to be suspended due to the onset of the COVID-19 pandemic in the United States.

In March 2021, THL fulfilled its matching commitment, leading to relief payments of approximately $1,200 per former Art Van employee.

TH Lee Putnam Ventures manages $1.1 billion in capital commitments and has invested approximately $850 million in more than 43 companies since the firm's formation in 1999.