Federal Railroad Administration (FRA)

Volpe National Transportation Systems Center (VNTSC)

Progress Rail

Caterpillar

Brookville Equipment Corporation

Science Applications International Corporation

QinetiQ - Foster Miller

Metra

Union Pacific Railroad

Association of American Railroads (AAR)

Norfolk Southern Corporation

Alaska Railroad

Dakota Minnesota & Eastern
Railroad Corporation
(Now part of CP Railway)

Transportation Technology Center, Inc.

Northern Indiana Commuter
Transportation District (NICTD)

Iowa Chicago & Eastern Railroad
(Now part of CP Railway)

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 Corporation

IRECO

Arkansas & Missouri Railroad

Indiana Northeastern Railroad