TCGI clients range from new technology developers/manufacturers to small systems/component manufacturers to Fortune 500 software development companies to state governments and transit agencies.

The following is a short list of some of the companies/organizations that have used TCGI's services:

  • Ballard Power Systems, Inc.
  • Bentley Systems, Inc.
  • Booz, Allen and Hamilton, Inc.
  • Clever Devices, Inc.
  • Electric Motor Corporation
  • Kawasaki Rail Car, Inc.
  • Maximus, Inc.
  • Metropolitan Atlanta Rapid Transit Authority (MARTA)
  • Oracle Corporation
  • United Nations