Amtrak BC Rail Burlington Northern Santa Fe Corporation Canadian Pacific Canadian National Railway CSX Corporation Ferrocarril Mexicano (Ferromex) Florida East Coast Railway Company Kansas City Southern Railroad Metra Rail MTA New York Montana Rail Link NFTA Norfolk Southern Corporation PATH Port Terminal Railroad Association QNS&L SEPTA Toronto Transit Tri-County Metropolitan Transportation Union Pacific Corporation | 
Network Rail (U.K.) Deutsche Bahn AG (Germany) Banverket (Sweden) NSB (Norway) PKP (Poland) London Underground Schweerbau (Germany) Turkish State Railways | 
Beijing Metro China Ministry of Rail Delhi Metro India Railways Light Rail Transit Authority (Philippines) Nanjing Metro Sampyo (Korea) Saudi Archirodon (Saudi Arabia) Tranz-I (Malaysia) Xi'an Metro (China) | 
Australian Rail Track Corporation Cerrejon (Colombia) Fenoco (Colombia) Isongo Rail (South Africa) John Holland (Australia) MRS Logistica S.A. (Brazil) Queensland Railroad (Australia) Vale (Brazil) Western Australian Government Railways Commission |