| Name | Country | Market Cap (US$) |
|---|
| Union Pacific Railroad Company | United States | Private |
| Union Railroad Company | United States | Private |
| UNION RAILWAYS (SOUTH) LTD | United Kingdom | Private |
| Union Switch & Signal Inc. | United States | Private |
| UNION SWITCH & SIGNAL PTY LTD | Australia | Private |
| Unique Pub Company | United Kingdom | Private |
| Uniteam AS | Norway | Private |
| Uniteam Holding AS | Norway | Private |
| Uniteam International AS | Norway | Private |
| UNITED GROUP MELBOURNE TRANSPORT LIMITED | Australia | Private |
| UNITED GROUP RAIL SERVICES LIMITED | Australia | Private |
| UNITED HIGHWAY BUS CORP. | Taiwan | Private |
| UNIVERSAL FORWARDING S.L. | Spain | Private |
| UNIVERSAL MARITIMA SL | Spain | Private |
| UPS SCS (Belgium) NV | Belgium | Private |
| UPS SCS GmbH & Co.oHG | Germany | Private |
| Utah Railway Company | United States | Private |
| Uti Logistics NV | Belgium | Private |
| Utztran Llc | United States | Private |
| VAIA CAR SPA | Italy | Private |
| VALDUNES | France | Private |
| Valencia Company | United States | Private |
| Van Gansewinkel Nv | Belgium | Private |
| Veluwsche Stoomtrein Maatschappij B.V. | Netherlands | Private |
| VERAG Spedition AG | Austria | Private |
| Viamare Invest AB | Sweden | Private |
| VICTRAN SA | Spain | Private |
| VIJAYANAND ROADLINES LIMITED | India | Private |
| VINCI PARK SERVICES UK LTD. | United Kingdom | Private |
| Visea Thorn S.A. | France | Private |
| Vizion Logistics Llc | United States | Private |
| Vmv Enterprises Inc | United States | Private |
| Voest-Alpine Schienen GmbH & Co KG | Austria | Private |
| voestalpine Bahnsysteme GmbH & Co KG | Austria | Private |
| Voestalpine Railpro B.V. | Netherlands | Private |
| Vogtlandbahn-GmbH | Germany | Private |
| VOLTRI TERMINAL EUROPA SPA | Italy | Private |
| VOSSLOH ESPANA SOCIEDAD ANONIMA. | Spain | Private |
| Vossloh Locomotives GmbH | Germany | Private |
| Vossloh Nordic Switch Systems AB | Sweden | Private |
| Vossloh Schienenfahrzeugtechnik GmbH | Germany | Private |
| VR Osakeyhtiö | Finland | Private |
| VR-Group Ltd | Finland | Private |
| W Renê Com Consultoria Peritagens Ltda | Brazil | Private |
| WABCO Westinghouse S.p.A. | Italy | Private |
| Wabtec Canada Inc | Canada | Private |
| Wabtec Corporation | United States | Private |
| Wales & West Passenger Trains Ltd | United Kingdom | Private |
| Walton Street Capital | United States | Private |
| Wanne-Herner Eisenbahn und Hafen GmbH (WHE) | Germany | Private |
| Wars S A | Poland | Private |
| Watco Companies, Inc. | United States | Private |
| Watermark Communities Inc. | United States | Private |
| WBN Waggonbau Niesky GmbH | Germany | Private |
| Wegmann & Co. GmbH | Germany | Private |
| Wenzhou Gangwu Team Co.,Ltd. Qili Container Company | China | Private |
| West Coast Trains Ltd | United Kingdom | Private |
| WEST JAPAN RAILWAY KANAZAWA MAINTEC CO., LTD. | Japan | Private |
| Westcode Incorporated | United States | Private |
| Wheeling & Lake Erie Railway Company | United States | Private |
| Wildenhofer Spedition und Transport GmbH | Austria | Private |
| WILLI BETZ ESPANA, SA | Spain | Private |
| William Kaufman Organization | United States | Private |
| Wisconsin & Southern Railroad Co (Inc) | United States | Private |
| Wisconsin Central Ltd | Canada | Private |
| Wisconsin Central Ltd. | United States | Private |
| Wisconsin Central Transportation | United States | Private |
| Wohnungsbauges. Friedrichshain mbH | Germany | Private |
| Woodchester Investments plc | Republic of Ireland | Private |
| World Success (Tianjin) International Trade Co., Ltd. | China | Private |
| World Super Services Inc | United States | Private |
| World Trade Center Building, Inc. | Japan | Private |
| WYVERN CARGO LTD | United Kingdom | Private |
| XCTA PTY LTD | Australia | Private |
| Xiamen Port Group Haitian Container Terminals Co., Ltd. | China | Private |
| Xingning Passenger Transport Company | China | Private |
| Yamaichi Tochi K. K. | Japan | Private |
| Yanzhou Gucun Town Qiban Loading & Unloading Group | China | Private |
| Yasuda Real Estate Co., Ltd. | Japan | Private |
| Yingkou Port Liability Co., Ltd. | China | Private |
| Yorozu Kogyo K. K. | Japan | Private |
| Young Touchstone Inc | United States | Private |
| Ysd Industries (2004) Inc. | United States | Private |
| Yuanshun Co.,Ltd. | China | Private |
| YUTAKA MANUFACTURING CO.,LTD. | Japan | Private |
| ZAKLADY NAPRAWCZE TABORU KOLEJOWEGO MINSK MAZOWIECKI S A | Poland | Private |
| Zastrova a.s. | Slovakia | Private |
| Zeleznice Slovenskej Republiky | Slovakia | Private |
| Zeleznicna spolocnost Slovensko, a.s. | Slovakia | Private |
| Zeleznicne opravovne a strojarne Zvolen, a.s. | Slovakia | Private |
| Zenitel Norway AS | Norway | Private |
| Zhangzhou Xiangcheng Load & Unload Company | China | Private |
| Zhejiang Expressway Co., Ltd. | Hong Kong | Private |
| Zhoukou Transportation Company | China | Private |
| Zhuzhou Times Electronic Technology Co., Ltd. | China | Private |
| ZOS Vrutky, a.s | Slovakia | Private |
| ZTP BEOGRAD J P | Yugoslavia | Private |
| Zugerland Verkehrsbetriebe AG | Switzerland | Private |
|
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