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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.

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.

THL Partners is a Boston-based private equity firm investing in middle-market growth companies in three industry groups: Financial Technology & Services, Healthcare, and Technology & Business...