SDN Communications, founded in 1989, offers a variety of business communication products and services. The company assists various clients that include health care facilities, banks, agricultural businesses and government agencies. Its range of services includes long-distance services, connecting corporate headquarters to branch locations, high speed Internet and cabling infrastructure. It also provides hardware to make the broadband connections work. It offers the equipment for network connectivity. Its additional services include installation and configuration, security assessment and policy origination, intrusion detection, consultation and administration. The company offers extended service support through certified engineers. SDN Communications is located in Sioux Falls, S.D.