Grant Thornton, one of America’s largest brands of professionals providing end-to-end audit, assurance, tax, and advisory services, has named Will Whatton to lead the firm’s OneStream Software practice.

OneStream is the leading enterprise finance management platform that unifies core finance and operational functions – including financial close, consolidation, reporting, planning and forecasting – to modernize and increase strategic impact of the Office of the CFO.

Grant Thornton is a OneStream Global System Integration Partner, delivering strategic solutions with the OneStream platform for our clients’ business operations. Grant Thornton and OneStream work together to help companies optimize their corporate performance management with a focus on quality, scalability and value all within the secure OneStream platform.

In this role, Whatton will lead the practice to deliver innovative solutions to clients focused on the OneStream platform which encompasses solutions such as financial close, consolidation, reporting, planning, forecasting, artificial intelligence (AI)/sensible machine learning, environmental, social and governance (ESG) and others.

“Our dedicated OneStream practice specializes in providing strategic direction, system implementation and managed services support for Grant Thornton clients, and focuses on personal collaboration to help meet our clients’ evolving business objectives,” said Nick Vellani, national managing principal of Grant Thornton's Technology Modernization practice at Grant Thornton Advisors LLC. “Will has many years of technology strategy and engineering experience, and his wealth of knowledge means he is keenly suited to lead our OneStream practice to new heights.”

As a principal within Grant Thornton’s Technology Modernization practice, Whatton leads the firm’s enterprise data capabilities focused on maximizing enterprise data value through strategy, governance, engineering, analytics and advanced data capabilities such as AI and data science. He brings deep data expertise to help clients design, execute and support large enterprise transformations, mergers and acquisitions (M&A), enterprise strategy and technology product capabilities.

Based in Houston, Whatton has more than 20 years of practical technology strategy and engineering experience and during his career, he has supported data solutions, enterprise resource planning (ERP) and systems implementations, M&A transactions and digital solutions for Grant Thornton clients. He has spent his career delivering innovative technology solutions across many industries including not for profit, healthcare, energy, financial services, construction, life sciences, manufacturing and asset management.

For more information on the Grant Thornton-OneStream alliance visit: https://www.grantthornton.com/services/alliances/onestream.

About Grant Thornton

“Grant Thornton” is the brand for two professional-services entities: Grant Thornton LLP, a licensed, certified public accounting (CPA) firm that provides audit and assurance services ― and Grant Thornton Advisors LLC (not a licensed CPA firm), which exclusively provides non-attest offerings, including tax and advisory services. With revenues of $2.4 billion for the fiscal year that ended July 31, 2023, and dozens of offices nationwide, Grant Thornton represents a community of almost 10,000 problem solvers, relationship builders, and industry specialists who know that how we serve matters as much as what we do.

Grant Thornton LLP, Grant Thornton Advisors LLC and their respective subsidiaries operate as an alternative practice structure (APS). The APS conforms with applicable laws, regulations and professional standards, including those from the American Institute of Certified Public Accountants.

Grant Thornton LLP and Grant Thornton Advisors LLC serve as the U.S. member firms of the Grant Thornton International Ltd (GTIL) network. GTIL and its member firms are not a worldwide partnership and all member firms are separate legal entities. Member firms deliver all services; GTIL does not provide services to clients.

About OneStream Software

OneStream is how today's Finance teams can go beyond just reporting on the past and Take Finance Further by steering the business to the future. It's the leading enterprise finance platform that unifies financial and operational data, embeds AI for better decisions and productivity, and empowers the Office of the CFO to become a critical driver of business strategy and execution. With more than 1,400 customers and 250 go-to-market, implementation and development partners, our vision is to be the operating system for modern finance.

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