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THL Key Takeaways: In August 2025, THL announced a majority investment in Headlands Research, a leading North American network of clinical trial sites that partners directly with pharmaceutical sponsors and CROs to advance medical research and help bring new therapies to market
Team - THL 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
Portfolio - THL Our dedicated THL team is here to support our portfolio company partners With deep expertise across both our specialized ISOs and key operating areas, we strive to help great companies achieve their fullest potential
Who we are - THL Our dedicated THL team is here to support our portfolio company partners With deep expertise across both our specialized ISOs and key operating areas, we strive to help great companies achieve their fullest potential
Life at THL - THL Casting a wide net for the strongest talent, and making THL a place where people can build successful careers, help ensure the firm’s long-term, sustainable success
Automation - THL Learn about some of THL’s automation partners—innovative companies transforming our world through the creative application of software, hardware and hybrid technology
How we invest - THL At THL, we apply an integrated private equity model that breaks down traditional silos to create teams of senior investment and operating professionals, and executive partners—each with years of deep sector experience and relationships across our focus areas
Contact - THL Where we invest Technology Business Solutions (TABS) Financial Technology Services (FTS) Healthcare (HC) Automation How we invest Value Creation Portfolio Team Who we are News Insights Life at THL Responsibility Contact LP Login 100 Federal Street Boston, MA 02110 617-227-1050 ⓒ Thomas H Lee Partners, L P Copyright 2025
All Investment List - THL Current and Former Portfolio Companies Below is a list of all portfolio company investments made by THL since its inception
Tony DiNovi - THL Tony has been Chairman of THL since 2021, prior to which he was Co-CEO for over 17 years Since joining the firm in 1988, he has been engaged in investments across our industry verticals, our Investment Committee and firm management