Brown, Graham & Company, established in 1955 and headquartered in Amarillo, Texas, is a certified professional accounting firm, serving more than 7,000 clients in several states, including Texas, Oklahoma and New Mexico. Its services include auditing of nonprofit and public and privately owned companies, tax advice, including estate and income tax planning and the preparation of tax returns. It also offers accounting and creating of accounting and business information systems, management advisory services, litigation support services and business valuation. Brown, Graham & Company has several offices in Texas including Austin, Canyon, Dimmitt, Georgetown, Pampa, Perryton, Spearman and Tulia. The firm serves a wide range of clients such as banks, steel fabrication companies, hospitals, health care facilities, pathology labs and doctors and dentists. It also provides its services to abstract and title and construction companies, oil and gas operators and exploration and development companies and government entities.