Grant Thornton’s top audit leader is bullish on the practice’s future after a 2024 deal that sold a significant stake in the accounting and advisory firm to private equity investors led by New Mountain Capital.

The audit practice has benefited from a boost in dedicated resources and also bolstered its safeguards against conflicts of interest. Those improvements stem from an operating contract between Grant Thornton’s legacy audit practice and its PE-backed business, said Ron Messenger, CEO of Grant Thornton’s audit business.

The firm’s private equity deal ushered in a new two-part legal structure that created a corporate entity to provide its tax and advisory work while audit partners run the firm’s legacy assurance business. Nearly half of the largest 30 firms have cut PE deals and they all rely on what the industry calls the “alternative practice structure.”

Underpinning that new operating structure is a services agreement spelling out the relationship between the two entities from governance to resources.

Those agreements can’t be an afterthought, Messenger said. He spoke with Bloomberg Tax reporter Amanda Iacone about how Grant Thornton's services agreement came together, how regulators informed that document, and how it will influence the quality of the firm’s auditing.

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