Custom Data Systems originated in 1989 as a software programming company to satisfy the need for programmers and consultants who understood business accounting, as well as computer technology. The company manages Sterling Enterprise Management Software programs for accounting companies, cemetery management, funeral homes and medical offices. Sterling Software was designed in 1996 for large corporations with multiple locations. Sterling Software is currently installed all over the United States. The software separates the accounting for the multiple locations while keeping the information integrated for lookups and queries. Custom Data Systems is headquartered in Spokane, Wash.