| N.I.I LIMITED | Private company limited by shares | Live |
| NIIDO ENTERPRISE COMPANY LIMITED | Private company limited by shares | Live |
| NIIICE LIMITED | Private company limited by shares | Live |
| Niimoo Innovative (HK) CO., LIMITED | | Live |
| Niimoo Technology (HK) CO., LIMITED | | Live |
| niin Limited | Private company limited by shares | Live |
| NIIN SAI ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| NIINAME LIMITED | Private company limited by shares | Dissolved |
| Niinfo Limited | Private company limited by shares | Live |
| NIIO TRADING CO. LIMITED | Private company limited by shares | Live |
| NIIP LIMITED | Private company limited by shares | Live |
| Niirvo (Hong Kong) Industrial Co., Limited | Private company limited by shares | Live |
| NIIT CHINA (HONG KONG) LIMITED | Private company limited by shares | Dissolved |
| NIIT HONG KONG LIMITED | Private company limited by shares | Dissolved |
| NIITSUKA INTERNATIONAL TRADE HONG KONG COMPANY LIMITED | Private company limited by shares | Live |
| Niivva Trade Limited | | Live |