Founded in 1981, Cotton is a certified public accounting firm headquartered in historic Old Town Alexandria, Virginia. Cotton has focused our practice on providing services predominantly for governmental agencies and programs. Today, Cotton provides a full range of audit, accounting, IT, and management consulting services. We expanded in 2022 by joining Sikich LLP, a global company specializing in technology-enabled professional services with more than 1,500 employees and over 100 partners.  

The professionalism of our partners and employees, and the quality of our people and our work, have contributed to our success as a firm. Cotton has been named a Washington Post Top Workplace for 4 consecutive years.