McDemus & Co. CPA is a Virginia CPA firm serving government agencies, business owners, executives, independent professionals, and individuals. The firm describes its work as certified public accounting and management consulting, with services that include accounting, payroll, tax planning, and tax services.

Its stated capabilities also include auditing, taxation, risk assurance and compliance, budgeting, management consulting, and internal control assessment. The firm notes SBA 8(a) and DBE (VA) certifications, and reports over 65 years of combined experience among its partners.

Based in Gainesville, VA, McDemus & Co. CPA works across business, individual, nonprofit, and government-related needs, including audits, reviews, compilations, forensic accounting, new business formation, tax preparation, tax problems, and IRS audit representation.