Advanced Digital Data Inc. (ADD Systems) has been providing computer solutions for the petroleum, propane, and Convenience St ... ore industry since 1973. Today, we provide a full spectrum of “best of breed” products and services for our customers. Since its inception, ADD Systems has focused exclusively on providing turnkey software and hardware solutions for the energy distribution and related markets. With a broad suite of solutions that can accommodate any size operation, we have attracted a diverse client base that includes local, regional and national petroleum and propane distributors, fuel wholesalers, convenience store operators, and gasoline jobbers. ADD Systems Corporate Headquarters is located in Flanders, New Jersey, with other offices in Orlando, Florida, Cranston, Rhode Island, and Montreal, Canada. Today our combined offices support more than 2500 customer locations throughout the United States and Canada, making us the largest provider of software solutions for the energy industry. read more