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Grant Thornton Advisors LLC
Acquirer counsel
Simpson Thacher & Bartlett
Individual advisers not yet recorded
Rainmaker
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Simpson Thacher advises Grant Thornton Advisors LLC on $90 million acquisition of Grant Thornton Denmark
Deal Overview
- Value
- $90m
- Deal type
- M&A
- Structure
- Data in progress
- Status
- Data in progress
Advisors
ACQUIRER
Simpson Thacher & Bartlett Overview
- Grant Thornton Advisors LLC is the US-based tax and advisory arm of Grant Thornton, operating in an alternative practice structure alongside Grant Thornton LLP, the licensed CPA firm that provides attest services.
- Founded in 1924, it is the US member of the Grant Thornton International Ltd network and ranks among the largest US audit, tax and advisory platforms by revenue, with offices across the country.
- In May 2024, an investor group led by New Mountain Capital with CDPQ and OA Private Capital as minority investors completed a majority growth investment in the firm, at the time the largest private equity transaction in the US accounting profession.
- Since January 2025, Grant Thornton Advisors has pursued an aggressive multinational platform strategy, acquiring Grant Thornton member firms across Europe, the Middle East, the Americas and Asia-Pacific (including Ireland, the UAE, the Netherlands, Luxembourg, the Cayman Islands, the Channel Islands, Switzerland/Liechtenstein, France, Spain, Belgium, Poland, Puerto Rico, Brazil and New Zealand), alongside specialist US firms Auxis and Stax.
- The Denmark transaction brought the platform to 18 firms worldwide, ten of them in Europe.
- New Mountain Capital is a New York–based growth-oriented investment firm with roughly $55bn in assets under management; Simpson Thacher has advised Grant Thornton Advisors and New Mountain on every transaction in the platform build.
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Grant Thornton Denmark
Seller counsel
Seller counsel not yet recorded
Overview
- Grant Thornton Denmark is a Danish audit, accounting, tax and consulting firm and a member of the Grant Thornton International network.
- It employs roughly 650 professionals including some 64 partners across offices in Copenhagen, Hillerød, Viby Sjælland, Aarhus, Hadsten, Grenaa, Randers, Hadsund and Aalborg.
- It is ranked among the seven largest audit and advisory firms in Denmark, with approximately €85m in annual revenue.
- Its client base spans small and medium-sized businesses through to listed Danish companies, and the firm has itself been consolidating the Danish market in recent years (including the merger with Kvist & Jensen and the addition of Grønlands Revision).
- It is led by CEO and Partner Brian Rasmussen, who remains in place post-transaction.
- By joining the Grant Thornton Advisors multinational platform, the firm gains access to cross-border audit, tax and advisory capabilities and investment in technology and talent, while retaining its local leadership and client relationships.