Simpson Thacher is representing Apax Partners LLP (“Apax”) in connection with a strategic growth investment in the non-attest business of CohnReznick LLP (“CohnReznick”), one of United States’ leading advisory, assurance and tax firms. The Firm has now been an adviser in six transactions involving a top 25 accounting firm.
With over 5,000 global employees and 350+ partners in 29 offices across the U.S., CohnReznick has a demonstrated track record of above-market organic growth, posting $1.12 billion in FY25 revenues owing to its deep pool of talented advisers, industry expertise and extensive service offerings. CohnReznick is a trusted adviser to clients in a wide range of industries, including real estate, financial services and financial sponsors, private client services, consumer, manufacturing, renewable energy and government advisory.
Following the closing of the transaction, CohnReznick will operate in an alternative practice structure: CohnReznick, a licensed CPA firm, will provide attest services, and CohnReznick Advisory LLC will provide business advisory and non-attest services.
The Simpson Thacher team includes Ben Schaye, Ryerson Symons, Timothy Gaffney, Kevin Tsai, Samyel Lee, Arie van Wijngaarden, Jacob Kornman, Richard Starik, Amy Zhou, Jaylen Amaker and Adam Hitti (M&A); Sophie Staples, Matt Lester and Ruoxi Zhang (Tax); Jamin Koslowe, Andrew Blau, Drew Kofsky, Laura Gallo and Daniella Villatoro (Executive Compensation and Employee Benefits); Ron Ben-Yehuda (IP); Michael Isby (Environmental); Karen Kazmerzak and Allison Davido (Antitrust); Krista McManus (Real Estate); and Steven DeLott (Insurance).