Since incorporating in the State of Maryland in December 1994, TEI has been successfully supporting Commercial and the Department of Defense clients:

• Plumbers and PipeFitters National Pension Fund
• Computer Science Corporation
• Army Test and Evaluation Command
• The Electronic Proving Ground
• Program Executive Office for Simulation, Training, and Instrumentation
• NewTec LLC.
• GBL Systems Corp.
• Mantech
• Alion Science and Technology Corporation
• Exelis Corporation
• MedVision