Your Accounting Solution; Plus More. Wise CPA Group is a boutique U.S. CPA firm with a genuine commitment to enthusiastic, affordable, and personalized service specializing in domestic and international U.S. tax filings. Founded in 1983, and headquartered in Chicago, Illinois, we provide a range of accounting services to clients who over the years have fanned out from coast to coast and beyond and nevertheless remain satisfied and loyal because our seasoned, dedicated accounting professionals tailor our services to your specific needs.