Tetrad Corporation is a diversified real estate company. It has owned and managed over three million square feet of office properties across a seven state region. The recent successful projects of the company include Phase 2 and Phase 3 expansion at the Scott Technology Center, construction management services for Millard Public Schools (to include nine separate bond issue projects) and construction of new corporate headquarters building for the Blue Cross Blue Shield of Nebraska. Tetrad Corporation s subsidiary, Tetrad Development Corporation specializes in private development and independent construction-related services for third-party clients. The company was established in 1994 and is located in Omaha, Neb.