Started in 1967, The Columbia Group Inc. (TCG) is a computer system designer and consultant that provides various related services. Located in Washington, D.C., it is a technical services support company. The company offers its vast customer base an array of services that include logistics management, engineering, design, fabrication, test and evaluation, information technology, financial management support, etc. The Columbia Group Inc. (TCG) has a vast list of customers, including Assistant Secretary of the Navy, Bureau of Medicine and Surgery, National Science Foundation and Naval Sea Systems Command, among others.