African Rail Industry Association (ARIA)
All India Railwaymen’s Federation (AIRF)
Allianz pro Schiene eV (APS)
AllRail (Alliance of Passenger Rail New Entrants)
American Association of Private Railroad Car Owners (AAPRCO)
American Association of Railroad Superintendents (AARS)
American Public Transportation Association (APTA)
American Railway Development Association (ARDA)
American Railway Engineering & Maintenance-of-Way Association (AREMA)
American Short Line & Regional Railroad Association (ASLRRA)
American Society of Mechanical Engineers (ASME)
Arab Union of Railways
Asociácia Výrobcov a Opravcov Koľajových Vozidiel (AVOKOV)
Asociación de Empresas Ferroviarias Privadas (AEFP)
Asociación de Propietarios de Vagones de Espana (FAPROVE)
Asociación Mexicana de Ferrocarriles AC (AMF)
Asociación Nacional de Talleres Ferroviarios (ASTAFE)
Asociatia Industriei Feroviare (AIF)
Associação Brasileira da Industria Ferroviaria (Abifer)
Associação da Plataforma Ferroviária Portuguesa (PFP)
Associação Nacional das Empresas de Transportes Urbanos (NTU)
Associação Nacional dos Transportadores de Passageiros sobre Trilhos (ANPTrilhos)
Associação Nacional dos Transportadores Ferroviários (ANTF)
Associació per a la Promoció del Transport Públic (PTP)
Associated Society of Locomotive Engineers & Firemen (ASLEF)
Association des Industries Ferroviaires des Hauts-de-France (AIF)
Association Ferroviaire Française des Ingénieurs et Cadres (AFFI)
Association for Consultancy & Engineering (ACE)
Association for European Transport (AET)
Association Française du Rail (AFRA)
Association of American Railroads (AAR)
Association of Car Accounting & Car Service Officers (ACACSO)
Association of Czech Railway Industry (ACRI)
Association of European Rail Rolling Stock Lessors (AERRL)
Association of Railway Training Providers Ltd (ARTP)
Association of Tourist and Heritage Rail Australia Inc (ATHRA)
Association of Train Operating Companies (Rail Delivery Group)
Association of Transport Co-ordinating Officers (ATCO)
Associazione Industrie Ferroviarie (ASSIFER)
Associazione Trasporti (Asstra)
Australasian Railway Association (ARA)
Australian Rail, Tram & Bus Industry Union (RBTU)
Australian Trade & Investment Commission
Bhartiya Railway Mall Godam Shramik Sangh (BRMGSS)
Brotherhood of Locomotive Engineers & Trainmen (BLET)
Bundesverband SchienenNahverkehr (BSN)
Campaign for Better Transport
Canadian Association of Railway Suppliers (CARS)
Canadian Urban Transit Association (CUTA)
Chartered Institution of Railway Operators (CIRO)
China Academy of Railway Sciences (CARS)
CIS Railway Council
Codatu
Collegio Ingegneri Ferroviari Italiani (CIFI)
Committee of the Organisation for Co-operation Between Railways (OSJD)
Community of European Railway & Infrastructure Companies (CER)
Community Rail Network (CRN)
Confederation of Passenger Transport UK (CPT)
Conference of African Rail Transport Ministers
Deutsche Verkehrswissenschaftliche Gesellschaft eV (DVWG)
Deutscher Bahnkunden-Verband eV (DBV)
Deutsches Verkehrsforum eV (DVF)
Engineers Ireland (EI)
ESCAP Railway Sector
Eurofima
Europe’s Rail Joint Undertaking (EU-Rail)
European Chemical Transport Association (ECTA)
European Intermodal Association (EIA)
European Investment Bank (EIB)
European Passenger Train & Traction Operating Lessors Association (EPTTOLA)
European Passengers Transport Operators (EPTO)
European Rail Freight Association asbl (ERFA)
European Rail Freight Customers' Platform (ERFCP)
European Rail Infrastructure Managers Association (EIM)
European Railway Wheels Association (ERWA)
European Shippers’ Council (ESC)
European Training Centre for Railways (ETCR)
Fachverband der Schienenbahnen, Wirtschaftskammer Österreich (WKO)
Fédération des Industries Ferroviaires (FIF)
Fédération Nationale des Associations d’Usagers des Transports (FNAUT)
Federation of Railway Officers Association (FROA)
Fer de France
FerCargo
Fermerci
Ferrocamara Empresaria de Ferrocarriles de Cargas
Forum Kolejowe
Freight Transport Association (FTA)
Fundación de los Ferrocarriles Españoles (FFE)
Fundacja Pro Kolej
Greengauge 21
Groupement des Authorités Responsables de Transports (GART)
Heritage Railway Association (HRA)
HeritageRail Alliance
Hungrail Magyar Vasúti Egyesület
Independent Regulators’ Group - Rail (IRG-Rail)
Indian Railway Conference Association (IRCA)
Informationsdienst für den öffentlichen Verkehr (LITRA)
Infrastructure New Zealand
Institute of Rail Welding (IoRW)
Institute of Railway Studies (IRS)
Institution of Engineering & Technology (IET)
Institution of Mechanical Engineers (IMechE)
Institution of Railway Signal Engineers (IRSE)
Instituto Argentino de Ferrocarriles cl (IAF)
Interessengemeinschaft der Bahnspediteure eV (IBS)
Interessengemeinschaft Österreichischer Verkehrsverbünde (IGV)
Intergovernmental Organisation for International Carriage by Rail (OTIF)
Intermodal Association of North America (IANA)
International Air Rail Organisation (IARO)
International Association of Public Transport (UITP)
International Association of Railway Operating Officers (IAROO)
International Association of Railway Operations Research (IAROR)
International Association of Sheet Metal, Air, Rail & Transportation Workers (SMART)
International Container Bureau (BIC)
International Heavy Haul Association (IHHA)
International Liaison Group of Government Railway Inspectorates (ILGGRI)
International Rail Transport Committee (CIT)
International Transport Workers’ Federation (ITF)
International Union of Combined Road-Rail Transport Companies scrl (UIRR)
International Union of Railway Medical Services (UIMC)
International Union of Railways (UIC)
International Union of Wagon Keepers (UIP)
Iranian Association of Rail Transport Engineering
Izba Gospodarcza Transportu Lądowego (IGTL)
Japan Association of Rolling Stock Industries (JARi)
Japan Overseas Railway System Association (JORSA)
Japan Private Railway Association
Japan Railway Engineers’ Association (JREA)
Japan Society of Mechanical Engineers (JSME)
Japan Subway Association
Kantonalen Direktoren des öffentlichen Verkehrs (KöV)
Korea Railway Association (KORASS)
Korea Rolling Stock Industries Association (KORSIA)
Latin-American Association of Metros (Alamys)
Latin-American Railway Association (ALAF)
League of Railway Women (LRW)
Light Rail Transit Association (LRTA)
Locomotive & Carriage Institution
Locomotive Maintenance Officers’ Association (LMOA)
MAFEX - Asociación de Fabricantes y Exportadores de Material, Equipos y Servicios Ferroviarios
Maghreb Rail Transport Committee (CTFM)
Mofair eV
National Association of Railway Business Women (NARBW)
National Federation of Indian Railwaymen (NFIR)
National Railroad Construction & Maintenance Association Inc (NRC)
National Railway Labor Conference
National Transport Trust
National Union of Rail, Maritime & Transport Workers (RMT)
NB-Rail
Netzwerk Europäischer Eisenbahnen eV (NEE)
New Zealand Railway & Locomotive Society
NHO Transport
Nordic Association of Railway Professionals (NJS)
North American Rail Shippers Association (NARS)
OnTrackNorthAmerica Inc
Operation Lifesaver Inc (OLI)
Österreichische Forschungsgesellschaft Straße – Schiene – Verkehr (FSV)
Österreichische Verkehrswissenschaftliche Gesellschaft (ÖVG)
Pan American Railway Congress Association (ACPF)
Permanent Way Institution (PWI)
Polska Izba Producentów Urządzeń i Usług na Rzecz Kolei
Pro Bahn Schweiz
Rail Cargo Information Netherlands
Rail Cluster for Southeast Europe (RCSEE)
Rail Forum Europe (RFE)
Rail Freight Group (RFG)
Rail Industry Fire Association (RIFA)
Rail Passengers Association
Rail Track Association Australia (RTAA)
Rail Wagon Association Ltd (RWA)
Railforum Nederland
Railfuture
Railgrup
Railroad Passenger Car Alliance (RCPA)
Railway Association of Canada (RAC)
Railway Civil Engineers’ Association (RCEA)
Railway Engineering-Maintenance Suppliers Association (REMSA)
Railway Heritage Designation Advisory Board (RHDAB)
Railway Heritage Trust (RHT)
Railway Industry Association (RIA)
Railway Supply Institute Inc (RSI)
Railway Systems Suppliers Inc (RSSI)
Railway Technical Society of Australasia (RTSA)
Railway Tie Association (RTA)
Raylı Ulaştırma Sistemleri ve Sanayicileri Derneği (RAYDER)
Retired Railway Officers’ Society (RROS)
Russian Association of Electric Public Transport Enterprises
Russian Railway Constructors Union
Samtrafiken i Sverige AB
Schweizerische Verkehrswissenschaftliche Gesellschaft (SVWG)
Scottish Association for Public Transport (SAPT)
Sdružení Železnicních Spolecností (SŽS)
Southern African Railways Association (SARA)
Studiengesellschaft für den kombinierten Verkehr eV
Svenska Privatvagnföreningen (SPF)
Swedish Rail Industry Group (SWERIG)
Swissrail Industry Association
Syndicat des Entrepreneurs de Travaux de Voies Ferrées de France (SETVF)
Tågföretagen
The Chartered Institute of Logistics & Transport (CILT, UK)
Third Sector Railway Council
Train Drivers’ Unions of Europe (ALE)
Transport Salaried Staffs’ Association (TSSA)
UKTram Ltd
Union des Entreprises de Travaux Ferroviaires (UETF / UASW)
Union des Transports Publics et Ferroviaires (UTP)
Union of African Railways (UAC)
Union of European Railway Engineer Associations (UEEIV)
Union of European Railway Industries (UNIFE)
United Nations Economic Commission for Europe (UNECE)
Uniunea Română de Transport Public (URTP)
Urban Transport Group (UTG)
US High Speed Rail Association (US HSR)
VAP Verband der verladenden Wirtschaft
Verband der Bahnindustrie in Deutschland eV (VDB)
Verband Deutscher Eisenbahn-Ingenieure eV (VDEI)
Verband Deutscher Verkehrsunternehmen (VDV)
Verband öffentlicher Verkehr (VöV) / Union des Transports Publics (UTP)
Vereinigung für Wettbewerb im Schienenverkehr eV
VPI - Vereinigung der Güterwagenhalter in Deutschland eV
Walzstahl Vereinigung Oberbau
Young Railway Professionals Ltd (YRP)
Związek Niezależnych Przewoźników Kolejowych (ZNPK)