The Grant Thornton Advisors’ platform spans member firms in more than 150 markets globally. Credit: Tada Images/Shutterstock.com.

Grant Thornton Advisors has announced the expansion of its multinational integrated platform with the inclusion of Grant Thornton France, Spain and Belgium.

This move highlights the firm’s commitment to connectivity and capabilities in Europe, the Americas, and the Middle East.

It follows the recent acquisitions of member firms in Ireland, the US, United Arab Emirates (UAE), Switzerland, and the Netherlands, in addition to Liechtenstein, Luxembourg, the Cayman Islands and the Channel Islands.

Supported by New Mountain Capital-led investor group, the firm launched its multinational platform strategy in January 2025.

With the latest expansion, a total of 11 member firms have joined the platform.

The addition of the French, Spanish, and Belgian firms is set to accelerate growth in these key European markets, offering clients a broader range of industry expertise.

Grant Thornton France serves a diverse clientele that includes leaders from the CAC 40 and SBF 120, large corporations, and middle-market enterprises.

Grant Thornton Spain is a member of the firm’s network and serves clients through a team of nearly 900 professionals in 10 locations.

Established in strategically significant global locations, Grant Thornton Belgium has a team of more than 250 professionals and possesses expertise in services pertaining to mergers and acquisitions, cross-border mandates, in addition to a variety of accounting, audit, tax, legal, and advisory requirements.

Grant Thornton Advisors CEO Jim Peko said: “Expanding the platform into France, Spain and Belgium is a defining chapter in our journey and represents a sea change in how our industry serves clients.

“We’re furthering our commitment to growth across services, industries and geographies. And we’re solidifying Grant Thornton as the platform of choice for talent and technology, underpinned by exceptional quality and our one-of-a-kind culture.”

Remaining a part of the Grant Thornton International network, the firm’s advisors platform spans member firms in more than 150 markets globally.

The latest transactions are expected to be finalised in the coming weeks.