Warren is the National Governance, Risk and Compliance Solution Leader and the Market Leader of the Chicago Business Advisory Services Group at Grant Thornton LLP. He has over 20 years experience working with multi-national, entrepreneurial, and high-growth public companies, including boards of directors and audit committees. Warren brings experience to the business risk consulting and internal audit services areas from both the public accounting firm and industry perspectives. He leads many Sarbanes-Oxley consulting, internal audit services and SAS 70 projects for a wide-array of publicly traded and private businesses with international operations. He has worked extensively with international internal audit, Sarbanes-Oxley and business consulting assignments in Europe, Russia, China, Southeast Asia, Central and South America and Canada. He has lectured on governance, risk and compliance.