Microwave Transmission Systems (MTSI) constructs and maintains wireless communications transmitting and receiving facilities. In addition to building and erecting microwave towers and installing and testing cellular equipment, the company's services include planning related to feasibility studies and FCC radio frequency licensing. It also provides site and project management services. Founded in 1987, MTSI has offices and subsidiaries in Florida, New Mexico, North Carolina, Ohio, Tennessee, and Texas. Affiliated companies include Viper Communications and Site Communications.