 Federal Railroad Administration (FRA) |
 Volpe National Transportation Systems Center (VNTSC) |
 Union Pacific Railroad |
 Association of American Railroads (AAR) |
 Norfolk Southern Corporation |
 Alaska Railroad |
 Dakota Minnesota & Eastern Railroad Corporation |
 Transportation Technology Center, Inc. |
 Northern Indiana Commuter Transportation District (NICTD) |
 Iowa Chicago & Eastern Railroad |
 Indian Railways |
 RailWorld Locomotive Leasing, LLC. |
 GE Transportation |
 BP Amoco |
 National Railway Equipment Company (NRE) |
 Cardwell Westinghouse |
 TTX Company |
 Holland Company |
 Trinity Rail |
 DANA Corporation |
 Molex |
 IRECO |