Greg Wallig appointed head of Public Policy for Grant Thornton


Wallig, a veteran Grant Thornton leader with nearly 30 years of experience, will continue to serve as the market managing principal in the firm’s MetroDC-Arlington office


CHICAGO and WASHINGTON, D.C., — Grant Thornton LLP, one of America’s largest audit, tax and advisory firms, has appointed Greg Wallig as head of Public Policy for the firm. In this role, the longtime Washington, D.C., business leader will manage the firm’s government affairs team, develop and implement the firm’s advocacy strategy, and lead outreach to Capitol Hill, the White House and federal agencies.  


Wallig, who has served in successive leadership roles for the firm for more than 18 years, will also continue to serve as the market managing principal in Grant Thornton’s MetroDC-Arlington office.


“I am excited to lead the firm’s government advocacy at such an important time for our clients, our colleagues and our profession,” said Wallig. “Grant Thornton is committed to delivering quality and personalization ― an approach that holds true for everything we do in Washington, D.C. Guided by this commitment, my team and I look forward to strengthening our firm’s relationships with elected officials and stakeholders throughout government.”


In his role as market managing principal of Grant Thornton’s MetroDC-Arlington office, Wallig is responsible for the firm’s culture, growth and strategy in the Washington, D.C. region. He serves as the focal point between his local clients and Grant Thornton’s nearly 50 offices throughout the country, as well as the firm’s international network of member firms.


For the last three years, Wallig was recognized as one of the 500 most powerful and influential people in business by Virginia Business magazine. He is also currently serving on the boards of the Virginia Society of CPAs, the Global Fund for Children, the Rosslyn Business Improvement District, the Greater Washington Board of Trade, William & Mary’s Mason School of Business and the Grant Thornton PAC.



About Grant Thornton LLP

Grant Thornton LLP (Grant Thornton) is one of America’s largest providers of audit and assurance, tax and advisory services — and the U.S. member firm of the Grant Thornton International Ltd global network. We go beyond the expected to make business more personal and build trust into every result. With revenues of $2.4 billion for the fiscal year that ended July 31, 2023, and almost 50 offices nationwide, Grant Thornton is a community of more than 9,000 problem solvers who value relationships and are ready to help organizations of all sizes and industries create more confident futures. Because, for us, how we serve matters as much as what we do. 


“Grant Thornton” refers to Grant Thornton LLP, the U.S. member firm of Grant Thornton International Ltd (GTIL). GTIL and the member firms are not a worldwide partnership. Services are delivered by the member firms. GTIL and its member firms are not agents of, and do not obligate, one another and are not liable for one another’s acts or omissions.




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