Tracked deals
17
17 tracked deals across 2013-2026.
Private Equity Firm
Other
THL Partners
Boston, Massachusetts, United States
THL Partners is a Boston-based private equity firm investing in middle-market growth companies across Financial Technology & Services, Healthcare, and Technology & Business Solutions. The firm partners with management teams and uses internal operating resources to transform and build companies of lasting value.
- Focus Areas
- Financial Technology & Services, Healthcare, Technology & Business Solutions
- Website
- thl.com
Recent pace
2
2 tracked deals announced in the last 12 months.
Deal mix
Buyout
7 buyout · 5 growth capital · 3 recapitalization
THL Partners Acquisition Volume by Year
Last 7 years
Actual
Full-year estimate
Supporting Data
Recent Transactions
Showing the 12 most recent of 17 tracked deals for THL Partners.
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August 18, 2026
- Buyer
- THL Partners
- Target
- Queue-it
- Seller
- GRO
- Industry
- Cybersecurity
- Location
- Denmark
- Type
- Growth capital
Queue-it entered a definitive agreement for THL Partners to make a majority investment in the company. The partnership is intended to accelerate product innovation and expand Queue-it’s global reach for its online traffic orchestration platform.
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April 22, 2026
- Buyer
- THL Partners, H.I.G. Capital (seller)
- Target
- Celerion Holdings, Inc., Celerion
- Seller
- H.I.G. Capital (via affiliates)
- Industry
- Healthcare Services
- Location
- Nebraska, United States
- Type
- Buyout
THL Partners is acquiring a majority stake in Celerion Holdings, Inc. for approximately $1.8 billion from funds affiliated with H.I.G. Capital. The deal is focused on advancing Celerion’s clinical pharmacology and bioanalytical capabilities, with completion expected in 2026 subject to customary conditions and regulatory approval.
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- Buyer
- THL Partners (Thomas H. Lee Partners)
- Target
- Red Nucleus
- Seller
- The Riverside Company (Riverside), Riverside Capital Appreciation strategy (RCAF)
- Industry
- Healthcare Services
- Location
- Pennsylvania, United States
- Type
- Buyout
THL Partners (Thomas H. Lee Partners) has made a majority investment in Red Nucleus, a Yardley, Pennsylvania-based provider of medical communications, market access, learning & development, and R&D support for the life sciences industry. The Riverside Company sold its investment in Red Nucleus; the deal closed October 17, 2024 and will support expansion of Red Nucleus’ commercialization services under new CEO Mike Menta and continued involvement from founder Ian Kelly.
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September 9, 2024
- Buyer
- THL Partners
- Target
- AMI
- Seller
- HGGC
- Industry
- Software
- Location
- Georgia, United States
- Type
- Buyout
THL Partners has agreed to acquire a majority stake in AMI from HGGC in a private transaction expected to close in fall/Q4 2024. AMI, headquartered in Duluth, Georgia, is a global leader in dynamic firmware used across data centers and cloud platforms and employs over 1,500 engineers; THL says the investment will accelerate product innovation and market expansion to address growing AI and hyperscale infrastructure demand.
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August 22, 2024
- Buyer
- THL Partners
- Target
- YA Group
- Seller
- CIVC Partners
- Industry
- Professional Services
- Location
- Tennessee, United States
- Type
- Recapitalization
THL Partners has agreed to make a majority investment in YA Group, a Nashville-based professional services firm providing forensic consulting, engineering, and risk mitigation services to insurance and public-sector clients. Current investor CIVC Partners, management and employees will retain significant ownership, and the capital will be used to accelerate organic growth, expand core capabilities and pursue strategic acquisitions.
-
April 4, 2023
- Buyer
- Smile Doctors, Linden Capital Partners, Thomas H. Lee Partners
- Target
- Grinz Orthodontics
- Seller
- Grinz Orthodontics, Dr. Richard Ziehmer
- Industry
- Dental
- Location
- North Carolina, United States
- Type
- Addon
Smile Doctors, a PE-backed orthodontic support organization, has acquired Grinz Orthodontics. The deal adds Grinz's practices in North Carolina and Arizona to Smile Doctors' network; Smile Doctors is a portfolio company of Linden Capital Partners and Thomas H. Lee Partners.
-
April 11, 2022
- Buyer
- Thomas H. Lee Partners
- Target
- Carpe Data
- Seller
- Founders and management, Existing strategic investors
- Industry
- Data & Analytics
- Location
- California, United States
- Type
- Growth capital
Thomas H. Lee Partners (THL) has made a strategic growth investment in Carpe Data, becoming the majority shareholder while the company's founders, management and existing strategic investors retain meaningful stakes. The investment will fund continued innovation in Carpe Data's AI-driven alternative data platform for insurance and support expansion across core segments and adjacent markets.
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March 31, 2022
- Buyer
- Thomas H. Lee Partners
- Target
- Intelligent Medical Objects
- Seller
- Warburg Pincus
- Industry
- Healthcare Services
- Location
- Illinois, United States
- Type
- Buyout
Thomas H. Lee Partners (THL) has agreed to acquire a majority interest in Intelligent Medical Objects (IMO) from Warburg Pincus. THL's investment will support IMO's product development and expansion of commercial relationships with hospitals, physicians and other healthcare organizations.
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February 28, 2022
- Buyer
- Thomas H. Lee Partners, Premier, Inc., ThedaCare, Bessemer Venture Partners, Mayfield, Norwest Venture Partners
- Target
- Qventus, Inc.
- Industry
- AI & Machine Learning
- Location
- California, United States
- Type
- Growth capital
Qventus announced a $50 million growth capital round led by Thomas H. Lee Partners with a strategic partnership and investment from Premier, Inc.; ThedaCare and existing investors Bessemer Venture Partners, Mayfield, and Norwest Venture Partners also participated. The funding and partnership will help Qventus expand its AI-powered care-operations platform across additional hospitals and health systems and enable product enhancements that leverage Premier’s data assets.
-
- Buyer
- Thomas H. Lee Partners, Linden Capital Partners
- Target
- Smile Doctors
- Industry
- Healthcare Services
- Location
- Texas, United States
- Type
- Recapitalization
Smile Doctors, the largest U.S. orthodontics-focused dental support organization with more than 295 locations, announced a strategic investment from Thomas H. Lee Partners. THL is investing alongside existing sponsor Linden Capital Partners in an equal partnership while affiliated orthodontists retain a significant ownership stake to support continued growth and expanded service offerings.
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December 1, 2021
- Buyer
- Adare Pharma Solutions, Thomas H. Lee Partners, Frazier Healthcare Partners
- Target
- Frontida BioPharm
- Industry
- Pharmaceuticals
- Location
- Pennsylvania, United States
- Type
- Addon
Adare Pharma Solutions, a PE-backed contract development and manufacturing organization (CDMO), has acquired Frontida BioPharm, a vertically integrated CDMO focused on oral formulations. The deal expands Adare’s capabilities—including high-potency compound handling and packaging services—and increases its manufacturing footprint; Adare is backed by Thomas H. Lee Partners and Frazier Healthcare Partners.
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September 15, 2021
- Buyer
- Thomas H. Lee Partners
- Target
- Odessa
- Industry
- Software
- Location
- Pennsylvania, United States
- Type
- Growth capital
Thomas H. Lee Partners (THL) has made a strategic growth investment in Odessa, a Philadelphia-based provider of asset finance and leasing software. The investment will fund Odessa's platform roadmap, capability expansion across financial services, geographic growth (U.S. and international), and potential M&A activity to accelerate product and market expansion.
Related Acquisition Pages
Healthcare Services Buyers & Acquisitions
4 tracked deals by THL Partners.
Cloud & SaaS Buyers & Acquisitions
2 tracked deals by THL Partners.
Pharmaceuticals Buyers & Acquisitions
2 tracked deals by THL Partners.
Software Buyers & Acquisitions
2 tracked deals by THL Partners.
Acquisitions in Pennsylvania
5 tracked deals by THL Partners.
Acquisitions in California
3 tracked deals by THL Partners.
Acquisitions in North Carolina
2 tracked deals by THL Partners.
Acquisitions in Florida
1 tracked deal by THL Partners.
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