Financial advisory firm Interpath said on Monday that Bridgepoint Group plc has entered into exclusive negotiations to buy a majority stake in the business.
Terms were not disclosed, but according to reports, the deal values Interpath at about £800m.
Interpath said the potential transaction would mark "a successful exit for HIG Capital, which has supported the business since its carve-out from KPMG UK in 2021".
Interpath employs more than 1,000 professionals globally across 12 countries including the UK, Ireland, France, Germany, Spain, the Caribbean and Hong Kong.
The financial advisory said that with Bridgepoint's support, it will focus on accelerating its international expansion, "continuing to attract and retain top talent, broadening its service offering across existing and new geographies, and selectively pursuing strategic acquisitions to further strengthen its platform".
Chief executive Mark Raddan said: "Today marks an exciting new chapter for Interpath as we embark on a new partnership with Bridgepoint. Not only does the team believe in our ambition, but they also share the values and culture that define who we are.
"Their investment will empower us to continue attracting exceptional talent and accelerate our expansion into new geographies across Europe, the Americas, and Asia. We are confident that with their support, we can build on our achievements, create even greater opportunities for our people, and deliver enhanced value to our clients."
Charles Welham, partner and sector head for business & financial services at Bridgepoint, said: "Interpath is a high-quality, differentiated advisory platform with a unique culture, operating in a growing market with significant opportunity for further share gains.
"What excites us most is the opportunity to support its exceptional base of talent and, by enhancing its distinctive people proposition, accelerate the pace at which more leading professionals in their fields join the Interpath platform.
"We are thrilled to partner with Interpath's outstanding leadership team as they enter their next phase of growth - building a more international and diversified business, and continuing to win share from more constrained and conflicted competitors."