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From veteran investment and operating professionals to dedicated support staff and an extended network of executive advisors, our team is driven by a relentless focus on building great companies of lasting value. This shared passion is what enables us to break new ground and create enduring partnerships alongside management teams around the world.

Thomas H. Lee Partners, L.P. is a prominent American private equity firm headquartered in Boston. The firm focuses on investing in middle market growth companies across various sectors, including financial technology, services, healthcare, technology, and business solutions.

With almost 50 years as investors and operators, we’ve raised $35 billion of equity capital, worked with more than 170 partner companies around the world and fueled more than 600 add-on acquisitions that represent an aggregate enterprise value of over $250 billion.

Meet our partners—great companies transforming their industries. Partnerships are the backbone of our business. We are passionate about each and every one of our partner companies across our 17 industry focus areas, or Identified Sector Opportunities (ISOs). Together, we work side by side to drive growth, scale and impact.

BOSTON, MA – October 4, 2021 – Thomas H. Lee Partners, L.P. (“THL”), a premier private equity firm investing in middle-market growth companies, today announced the successful final close of its ninth flagship fund, Thomas H. Lee Equity Fund IX (“Fund IX”), at its hard cap with $5.6 billion in capital commitments.

He started Boston-based Thomas H. Lee Partners in 1974, becoming a pioneer in the leveraged-buyout business. Lee made his name on his 1992 purchase of Snapple Beverage Corp., generating a 334%...

Thomas H. Lee Partners (THL), the firm he founded in 1974, is among the oldest and largest private equity firms globally. At the time of his death, he was the managing partner of Lee Equity Partners, a private equity firm he founded in 2006 after leaving Thomas H. Lee Partners.

A private equity titan earlier than practically anyone else, Mr. Lee, through his firm, Thomas H. Lee Partners, cemented Boston as a hub of financiers who took over companies, slashed costs and...