| NIO, Limited | Private company limited by shares | Live |
| NIOBE COMPANY LIMITED | Private company limited by shares | Dissolved |
| FRANCE NIOBE INTERNATIONAL GROUP LIMITED | Private company limited by shares | Live |
| NIOBE INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| Niobium Ow Co., Limited | | Live |
| China Niobium Investment Holdings Limited | Private company limited by shares | Live |
| NIOLA LIMITED | Private company limited by shares | Dissolved |
| 9.9 Ni-ologie Limited | Private company limited by shares | Live |
| Niologie Limited | Private company limited by shares | Live |
| NION LIMITED | Private company limited by shares | Dissolved |
| NION CO., LIMITED | Private company limited by shares | Live |
| Yau Wou Nion Engineering Company Limited | Private company limited by shares | Live |
| NION TECHNOLOGY (HK) CO., LIMITED | Private company limited by shares | Live |
| NION ELECTRONIC INDUSTRIES COMPANY LIMITED | Private company limited by shares | Dissolved |
| Nion Technology Limited | Private company limited by shares | Dissolved |
| Niona Trade Limited | Private company limited by shares | Live |
| NIONNI LIMITED | Private company limited by shares | Dissolved |
| NIOO INTERNATIONAL LIMITED | | Live |
| Nioo Technology Co., Limited | | Live |
| NIOO TRADE LIMITED | | Live |
| NIORN ENTERPRISES LIMITED | Private company limited by shares | Live Commenced dormancy on 02-May-2014 |
| NIORO DU SAHEL TRADING COMPANY LIMITED | Private company limited by shares | Live |
| NIOS LIMITED | Private company limited by shares | Dissolved |
| NioTech Limited | Private company limited by shares | Live |
| NIOX LIMITED | Private company limited by shares | Live |