| Yayasan PERINTIS (Pendidikan Rangkai Informasi and Teknologi Swadaya) |
| Yayasan Sime Darby |
| Yeo Valley Production Limited |
| YHA (England and Wales) - charity owner |
| Yildiz Holding A.S |
| Yingli Energy Development Co |
| Yingli Power Holding Company Ltd. |
| Yogamatters Limited |
| Yogi Tea GmbH |
| Yonderland |
| Yonsei University |
| Yora Pet Foods for the Planet Ltd |
| York Archaeological Trust For Excavation And Research Limited |
| Yorkshire Bank Plc |
| Yorkshire Building Society |
| Young Green Tech |
| Young Power in Social Action |
| Youngblood Foundation (NPC) |
| Youth Development Foundation |
| YSL International Holdings Limited |
| Yucaipa Companies |
| YUM! Brands Inc |
| Zamani Telecom Niger S.A |
| Zen Internet Limited |
| Zenith Business Co. Ltd |