DGC One AB engages in the development, distribution, and sale of data communications and telephony solutions. It also focused on the Internet Protocol Virtual Private Network communication services. The firm operates through the following business segments: Data Communications, Information Technology Operations, Hardware, and Telephony. The Data Communications segment offers traffic prioritization services in telephony, video conferencing and streaming. The Information Technology Operations segment offers capacity services, system management services, and user-related services. The Hardware segments sells personal computers, servers, and telephone equipment, as well as licenses. The Telephony segment works with centralized and customers premises. The company was founded by David Giertz in 1987 and is headquartered in Stockholm, Sweden.