Grant Thornton Advisors has unveiled plans to invest $1bn over the next three years to integrate advanced AI tools and technology across its multinational professional-services platform.  

The initiative seeks to upgrade the workforce by integrating AI tools, improving the company’s proficiency in accounting, tax, and advisory functions. 

The investment is part of the company’s strategy to develop a technology infrastructure that aligns with market needs and supports its growth.  

Currently, the firm is in the process of equipping more than 13,500 employees in 60 offices worldwide with Microsoft 365 Copilot.  

This follows an initial pilot phase where the AI tool was tested with a smaller group of professionals.  

The expectation is that these benefits will be amplified as the technology becomes a standard tool for all employees, integrated with internal Grant Thornton data and Microsoft applications. 

The recent investment by New Mountain Capital, which manages approximately $55bn in assets, has fuelled the firm’s AI initiatives.  

Over the past year, Grant Thornton Advisors has progressed in implementing an AI maturity model within its services.  

This includes the launch of CompliAI, an AI solution designed to assist clients in risk management and assessment through technology and a specialised language model. 

Since its inception in January 2025, Grant Thornton Advisors has been expanding its multi-disciplinary platform, announcing collaborations with accounting and consulting firms in several regions, including Ireland, the United Arab Emirates, Switzerland/Liechtenstein, the Netherlands and Luxembourg, plus the Cayman Islands, and the Channel Islands. 

The firm’s growth strategy also includes the acquisition of Auxis, a company specialising in outsourcing and business modernisation, and the addition of Stax, a strategy consulting firm known for its work with private equity firms, to its platform. 

Grant Thornton Advisors CEO Jim Peko said: “This isn’t just about investing in AI and technology, it’s about investing in our people. We’re giving every professional across our multinational platform — from Chicago to Dubai — the kinds of tools they need to work smarter, faster and in keeping with their individual styles. The result is something that is uniquely Grant Thornton: People who are empowered do their best work so clients benefit from the quality and results they need.”