The accounting and advisory firms Grant Thornton Advisors LLC in the United States and Grant Thornton Ireland in January 2025 announced that they had created a multinational, multidisciplinary platform to provide audit, advisory and tax services to an international client base. The transaction was backed by an investor group led by New Mountain Capital, a New-York based investment firm with some $55bn in assets under management. Grant Thornton Luxembourg on 23 April announced that it, too, would join this platform, along with Grant Thornton Cayman and Grant Thornton UAE.

“Today marks a pivotal milestone for Grant Thornton Luxembourg,” commented Ralph Bourgnon, partner, board and management committee member, Grant Thornton Luxembourg, who will maintain management of his region. “It not only fuels our momentum and gives our professionals unique and exciting opportunities, it also bolsters our technology resources, access to solutions for the local market and across many regions, and expertise spanning financial hubs.”

This transaction is subject to regulatory approvals and other standard closing conditions, noted a press release.

The new platform of transatlantic advisory and tax practices--which now counts 13,000 professionals across more than 50 offices--will continue to be part of the Grant Thornton International Limited network. In Luxembourg, the firm employs 350 people and counts 27 partners.