Brown Smith Wallace is one of the Midwest region’s most prominent locally owned public accounting firms. Brown Smith Wallace is the only CPA and business consulting firm that makes A Measurable Difference™ for its clients by delivering six measurable differences, which include providing a guarantee in writing.  We also provide many of the St. Louis area’s largest companies with those value-added consulting services such as employee benefit plan audits; captive insurance company services; internal audit, IT audit and other related risk services; litigation support, valuation and other financial advisory services; and specialty tax services such as family wealth planning, state and local taxes, including sales and use tax consulting, credits and incentives, property tax and international tax services.  Brown Smith Wallace serves a wide variety of industries with particular expertise in broker-dealers, captives, government, health care, insurance companies, not for profit organizations, real estate and retail. This branch of Brown Smith Wallace proudly serves: St. Charles, St. Peters, O’Fallon, Wentzville, Chesterfield, Ballwin, Wildwood, and the surrounding St. Charles County. SPECIALTIES: audit, federal tax, internal audit, risk advisory services, insurance, valuation, litigation support, real estate, accounting, cybersecurity, enterprise risk management, state tax, local tax, international tax