Österreichische Bundesbahnen-Holding Aktiengesellschaft

Alaska Railroad Corporation
América Latina Logística S.A.
American Railcar Industries, Inc. [ARII]
Amey UK plc
Anacostia Rail Holdings Company
Arkansas & Missouri Railroad Co.

Beiya Industrial (Group) Co. Ltd.
BNSF Railway Company
Burlington Northern Santa Fe Corporation [BNI]

Canadian National Railway Company [CNI]
Canadian Pacific Railway Limited [CP]
Córas Iompair Éireann
Central Japan Railway Company
ClubLink Enterprises Limited
Companhia do Metropolitano de São Paulo - Metrô
Conrail Inc.
CSX Corporation [CSX]
CSX Transportation Inc.

Dakota, Minnesota & Eastern Railroad Corporation
DB Schenker Rail (UK) Ltd.
DB Schenker Rail Danmark Services A/S
Direct Rail Services Limited

East Japan Railway Company
Eurostar Group Ltd.

Ferrovie dello Stato S.p.A.
First ScotRail
Florida East Coast Railway, L.L.C.
FNM S.p.A.
FreightCar America, Inc. [RAIL]

Genesee & Wyoming Inc. [GWR]
Great Western Trains Company Limited
Groupe Eurotunnel SA
Guangshen Railway Company Limited [GSH]

Hankyu Hanshin Holdings, Inc.

Indiana Harbor Belt Railroad Company
Iowa Interstate Railroad Ltd.

Jarvis plc

Kansas City Southern [KSU]
Keihin Electric Express Railway Co., Ltd.
Keio Corporation
Keisei Electric Railway Co., Ltd.
KnightHawk Inc.
Kowloon-Canton Railway Corporation

London Eastern Railway Limited
London Underground Limited

Maine Central Railroad, Inc.
Metro-North Commuter Railroad Company
Metropolitan Transportation Authority
Montana Rail Link, Inc.
MRS Logistica S.A.
MTR Corporation Limited

Nagoya Railroad Co., Ltd.
National Express Group PLC
National Railroad Passenger Corporation
Network Rail
New Southern Railway Limited
New York City Transit Authority
Norfolk Southern Corporation [NSC]
Norfolk Southern Railway Company
Northeast Illinois Regional Commuter Railroad Corporation
NV Nederlandse Spoorwegen

Odakyu Electric Railway Co., Ltd.
OmniTRAX, Inc.

Pan Am Railways, Inc.
Pan Am Systems, Inc.
Pinsly Railroad Company
Pioneer Railcorp [PRRR.PK]
Polskie Koleje Pañstwowe S.A.
Portec Rail Products, Inc. [PRPX]
ProRail B.V.
Providence and Worcester Railroad Company [PWX]

Rail Cargo Austria AG
RailAmerica, Inc. [RA]
Rossiiskie Zheleznye Dorogi OAO

San Francisco Bay Area Rapid Transit District
SEIBU Railway Co., LTD.
SMRT Corporation Ltd
Société Nationale des Chemins de Fer Français
Southeastern Pennsylvania Transportation Authority
Southern California Regional Rail Authority
Swiss Federal Railways SBB

Texas Mexican Railway Company
The Belt Railway Company of Chicago
The Go-Ahead Group plc
The Greenbrier Companies, Inc. [GBX]
The Kansas City Southern Railway Company
The Long Island Rail Road Company
Tobu Railway Co., Ltd.
Toll NZ Limited
Transtar, Inc.
Trinity Industries, Inc. [TRN]
Tube Lines Ltd.

Union Pacific Corporation [UNP]
Union Pacific Railroad Company

VIA Rail Canada Inc.
Virgin Rail Group
VR-Group Ltd

Washington Metropolitan Area Transit Authority
Watco Companies, Inc.
West Japan Railway Company
Westinghouse Air Brake Technologies Corporation [WAB]
Wheeling & Lake Erie Railway Co.