Thomas H. Lee Partners, L.P.

A premier private equity firm investing in middle-market growth companies.

Venture Capital Active Boston, United States Est. 1974
Last updated 2026-07-20
Portfolio
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About

Thomas H. Lee Partners, L.P. (THL) is an American private equity firm headquartered in Boston, Massachusetts. The firm focuses on investing in middle-market growth companies across various sectors, including financial technology & services, healthcare, and technology & business solutions. THL was founded in 1974 by Thomas H. Lee, a pioneer in private equity and leveraged buyouts. The firm utilizes an integrated private equity model, combining deep sector expertise through its Identified Sector Opportunity (ISO) process with dedicated internal operating resources from its Strategic Resource Group (SRG) to accelerate growth and drive long-term value in partnership with management teams.

Portfolio

No portfolio companies in this dataset yet.

Investment activity

Portfolio by sector

Agriculture & Food Technologies1

Q&A

What is Thomas H. Lee Partners, L.P.'s most recent investment?
Thomas H. Lee Partners, L.P. participated in a $95M Series D round for Phytech in September 2020.
Which sectors does Thomas H. Lee Partners, L.P. focus on for investments?
Thomas H. Lee Partners, L.P. has invested in the Agriculture & Food Technologies sector, as seen with their investment in Phytech.
Can you name a notable portfolio company of Thomas H. Lee Partners, L.P.?
Phytech, an IoT-based digital farming platform, is a notable company in Thomas H. Lee Partners, L.P.'s portfolio.
What is the typical investment stage for Thomas H. Lee Partners, L.P.?
Thomas H. Lee Partners, L.P. has participated in a Series D funding round, indicating an interest in later-stage companies.
When was Thomas H. Lee Partners, L.P. founded?
Thomas H. Lee Partners, L.P. was created in September 2020, according to startupim data.
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Identifiers & details

Founded1974