Federal Agencies:

* U.S. Department of Transportation (USDOT)
* Federal Transit Administration (FTA)
* Federal Highway Administration (FHWA)
* Intelligent Transportation Systems (USDOT)

National Organizations:

* Intelligent Transportation Society of America (ITSA)
* Intelligent Transportation Society - Texas (ITS - TX)
* Institute of Transportation Engineers (ITE)

State Agencies and Other Public Agencies:

* Texas Department of Transportation (TxDOT)
* Central Puget Sound Regional Transit Authority

* Capital Metropolitan Transportation Authority

Research Centers:

* Center for Transportation Research at The University of Texas at Austin
* Texas Transportation Institute
* Transportation Northwest
* University of California Transportation Center
* Upper Great Plains Transportation Institute
* Mid-America Transportation Center
* Southwest Region University Transportation Center
* Southeastern Transportation Center
* Pennsylvania Transportation Institute
* New England University Transportation Center
* University of Arkansas Mack-Blackwell Transportation Center (MBTC)
* National Center for Transportation and Industrial Productivity