| ZANU |  | | TZ | Zanzibar Shipping Lines Ltd. | zanline.co.tz/ | |
| ZAPU | | | PL | Zaklady Azotowe "Pulawy" Spólka Akcyjna | pulawy.grupaazoty.com/ | |
| ZBLU | | zebulun | SG | Zebulun Containers Pte. Ltd. | www.zebuluncontainers.com/ | |
| ZBXU | | z box | ES | Navlandis Logistics Technologies | www.navlandis.com/ | |
| ZCLU |  | zim | IL | Zim Integrated Shipping Services | www.zim.com/ | |
| ZCSU | | the z factor | IL | Zim Integrated Shipping Services | www.zim.com/ | |
| ZDXU | | | CN | Shanghai Zoudi Supply Chain Co., Ltd. | | |
| ZENU | | | JP | Zen-Noh National Federation of Agricultural Cooperative Associations | www.zennoh.or.jp/ | |
| ZGHU | | | CN | Shanghai ZhongGu Logistics Co., Ltd. | www.zhonggu56.com/ | |
| ZGLU | | zhonggu | CN | Shanghai ZhongGu Logistics Co., Ltd. | www.zhonggu56.com/ | |
| ZGRU | | zhonggu | CN | Shanghai ZhongGu Logistics Co., Ltd. | www.zhonggu56.com/ | |
| ZGXU | | zhonggu | CN | Shanghai ZhongGu Logistics Co., Ltd. | www.zhonggu56.com/ | |
| ZHFU | | c&k ferry | CN | Yantai Zhong Han Ferry Lines Co., Ltd. | www.zhonghanferry.com/ | |
| ZHGU | | | TW | Taoyuan Oxygen Gas Industry Co., Ltd. | | |
| ZHHU | | | CN | Xi'an Zhonghui Liahua Industry Co., Ltd. | | |
| ZHLU | | zhl | SG | Zhenghe Logistics Pte. Ltd. | www.zhenghelogistics.com/ | |
| ZHLU |  | | CN | Zhejiang Yonghe Refrigerant Co., Ltd. | www.qhyh.com/ | |
| ZHWU | | | CN | Tianjin Zhaohua Supply Chain Management Group Co., Ltd. | www.zhaohuagroup.com/ | |
| ZIBU | | | CN | Zhejiang Lianyun Box Logistics Technology Co., Ltd. | | |
| ZIMU | | zim | IL | Zim Integrated Shipping Services | www.zim.com/ | |
| ZJTU | | | CN | CNCC International Logistics Equipment Co., Ltd. | www.cncc.com.cn/ | |
| ZMNU | | | CN | Zhejiang Morita New Materials Co., Ltd. | www.zjsentian.com/ | |
| ZMOU | | zimonitor | IL | Zim Integrated Shipping Services Ltd. | www.zim.com/ | |
| ZMSU | | | DE | Zeppelin Mobile Systeme GmbH. | www.zeppelin-mobile.com/ | |
| ZMYU | | | HK | Tian Hao Warehousing & Transportation Co., Ltd. | | |
| ZNZU | | | TZ | Zanzibar Shipping Lines Ltd. | zanline.co.tz/ | |
| ZPLU | | zhejiang penglai refrigerant co.,ltd | CN | Zhejiang Penglai Refrigerant Co., Ltd. | www.penglairefrigerant.com/ | |
| ZPLU | | | DE | Konrad Zippel Spediteur GmbH. & Co. KG. | www.zippel24.com/ | |
| ZSCU | | | CN | Zhangjiagang Saejin Container Components Co., Ltd. | | |
| ZSIU | | | CN | Shaanxi Zhougsheng Yinuo New Energy Equipment Co., Ltd. | www.sxzsyn.com/ | |
| ZSMU | | sanmei | CN | Zhejiang Sanmei Chemical Industry Co., Ltd. | www.sanmeichem.com/ | |
| ZSYU | | | CN | PetroChina North China Chemicals Marketing Co. | www.petrochina.com.cn/ | |
| ZTCU | | | CN | Suzhou Zhengbang Tongyuan Logistics Equipment Co., Ltd. | | |
| ZTKU | | nijman zeetank | NL | Nijman Zeetank International Logistic Group | www.nijman-zeetank.com/ | |
| ZTSU | | | CN | Zhongtuo Container Technology Co., Ltd. | | |
| ZUZU | | | GB | Cargostore Worldwide Trading Ltd. | cargostore.com/ | |
| ZWAU | | zwatra transport | NL | Zwatra Transport BV. | www.boermangroep.nl/zwatra-transport/home/ | |
| ZWFU | | | IN | Zim World Freight Private Ltd. | www.zline.in/ | |
| ZXJU | | | CN | Qingdao Ruijunyuan Industry Trade Co., Ltd. | www.skipcontainer.com/ | |
| ZYCU | | | CN | Zhejiang Yingpeng Chemical Co., Ltd. | www.yingpengchemical.com/ | |
| ZYMU | | zijderhand | NL | Zijderhand Transport Moerkapelle | | |
| ZZZU | | | FR | Unauthorised prefix (on B.I.C. authority) | www.bic-code.org/ | |
