| Hong Kong Inger Biotechnology Co., Limited | Private company limited by shares | Live |
| INGER TRADING CO., LIMITED | Private company limited by shares | Live |
| INGER INTERNATIONAL LIMITED | Private company limited by shares | Live |
| Inger Labs Limited | Private company limited by shares | Live |
| INGERA INTERNATIONAL TRADING HONG KONG LIMITED | | Live |
| HONG KONG INGERFIELD GENERAL MACHINERY CO., LIMITED | Private company limited by shares | Dissolved |
| INGERSOL COMPANY LIMITED | Private company limited by shares | Dissolved |
| INGERSON LIMITED | Private company limited by shares | Dissolved |