About Thomas H Lee Partners
Thomas H Lee Partners is a private equity firm founded in 1974. It is primarily based in Boston, United States. As of Nov 2026, Thomas H Lee Partners has a portfolio of 132 companies, comprising 132 funding rounds and 60 acquisitions. In the last 12 months, it has participated in 3 acquisitions. The firm primarily invests in companies based in United States and Bermuda. Its portfolio is spread across a wide range of sectors from Enterprise Applications to Financial Services. Most recently it acquired stakes in Queue-it on Aug 18, 2026.
A lot of funds co-invest with Thomas H Lee Partners, with names like Zebra sharing a substantial percentage of its portfolio.
Thomas H Lee Partners has a team of 112 people, including 38 partners.
Key Metrics
Thomas H Lee Partners' Portfolio
Thomas H Lee Partners has a portfolio of 132 companies. They have invested in a total of 132 companies. Their most recent investment was in inriver (Series C round) on May 19, 2022. Here are the most recent investments by Thomas H Lee Partners:Date | Company | Round | Amount | Co-Investors |
|---|---|---|---|---|
May 19, 2022 | Series C | 9420 | - | |
Apr 26, 2022 | Series A | 8318 | ||
Apr 11, 2022 | Series B | 8102 | - | |
Feb 28, 2022 | Series C | 5686 |
Thomas H Lee Partners has acquired 60 companies. Their most recent acquisition was of Queue-it on Aug 18, 2026. Here are the most recent acquisitions by Thomas H Lee Partners:
Acquisition Date | Company | Short Description | Total Funding | Founded Year |
|---|---|---|---|---|
Aug 18, 2026 | Virtual queue system for managing web traffic | $280K | 2010 | |
Aug 04, 2026 | Provider of asphalt paving and maintenance services | - | 2024 | |
Apr 22, 2026 | Translational medicine experts accelerating drug development for global patient impact | - | 2010 | |
Aug 18, 2025 | Provider of clinical research services | - | 2018 |
Here is the portfolio snapshot of Thomas H Lee Partners:
Investments by Year
The maximum number of investments were made in 2022
Acquisitions by Year
The maximum number of acquisitions were made in 2019
Portfolio by Location
Companies are primarily in United States and Bermuda
Portfolio by Sector
Companies are primarily in Enterprise Applications
Team profile of Thomas H Lee Partners
Thomas H Lee Partners has a team of 112 members including 38 Partners and 39 Principals located in United States and Malaysia. Thomas H Lee Partners' team sits on the board of 1 company.Here is a list of top team members in Thomas H Lee Partners:
Name | Designation | Location | Board Memberships | Contact Details |
|---|---|---|---|---|
Partner | Boston | - | - | |
Partner | Boston | - | - | |
Partner | Boston | - | - | |
Partner | Boston | - | - | |
Partner | United States | - | - | |
Partner | Boston | - | ||
Partner | Boston | - | - | |
Partner | Boston | - | - | |
Partner | Boston | - | - | |
Partner | Boston | - | - | |
Partner | Boston | - | - |
Co-investors of Thomas H Lee Partners
Over the past 52 years, 39 investors have co-invested in Thomas H Lee Partners's portfolio companies.
- Top Co-investors of Thomas H Lee Partners: 39 investors entered a company along with Thomas H Lee Partners. These include investors like Zebra (2 companies).
Thomas H Lee Partners News
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AutoStore Holdings Ltd.: THL Major shareholding notificationCision•Oct 02, 2026•Thomas H Lee Partners, AutoStore
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THL Partners Invests in Queue-it to Accelerate Global Growth and Product InnovationMedia Bulletins•Aug 18, 2026•Thomas H Lee Partners, Queue-it
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PaveMasters Announces Majority Investment from THL PartnersThe Joplin Globe•Aug 03, 2026•Thomas H Lee Partners, PaveMasters
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Lattice Named 2026 Environment + Energy Leader Award WinnerBusiness Wire•Apr 23, 2026•Lattice, AMI, Lattice Semiconductor, Thomas H Lee Partners
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Celerion Announces Majority Investment from THL PartnersBakersfield•Apr 22, 2026•Thomas H Lee Partners, Celerion, H.I.G. Capital
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4Pines Fund Services chooses McDonnellAsset Servicing Times•Nov 19, 2025•4Pines Fund Services, Thomas H Lee Partners
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THL Partners to acquire Headlands Research from KKR in $600m dealPrivate Equity Wire•Aug 18, 2025•Headlands Research, Thomas H Lee Partners, KKR
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H Partners Prepares Board Fight at Harley-DavidsonIndiatimes•Apr 16, 2025•Thomas H Lee Partners, Harley Davidson
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THL Partners’ Majority Investment in Red NucleusGlobal Legal Chronicle•Nov 01, 2024•Thomas H Lee Partners, Red Nucleus
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RIA Hightower to Take Majority Stake in NEPCPLANADVISER•Oct 22, 2024•High Tower, NEPC, Thomas H Lee Partners
