| Immuno Investment Limited | | Live |
| IMMUNOCELLS TECHNOLOGY LIMITED | Private company limited by shares | Live |
| ImmunoDiagnostics Limited | Private company limited by shares | Live |
| ImmunoEast Limited | Private company limited by shares | Live |
| Immunofoco Pharmaceutical Technology Limited | | Live |
| HK ImmunoGen Limited | Private company limited by shares | Live |
| IMMUNOGEN BIOTECH COMPANY LIMITED | Private company limited by shares | Dissolved |
| ImmunoGene Limited | Private company limited by shares | Live |
| Centre for Immunology & Infection Limited | Company limited by guarantee | Live |
| Immunomix Pharma Limited | Private company limited by shares | Live |
| Immunonet Limited | | Live |
| IMMUNOPHAGE BIOTECH HK CO., LIMITED | | Live |
| IMMUNOPROOF LIMITED | Private company limited by shares | Live |
| DrD ImmunoTech Limited | Private company limited by shares | Live |
| Immunotide Limited | | Live |
| Immunotrade Limited | Private company limited by shares | Live |
| IMMUNOVA LIMITED | Private company limited by shares | Dissolved |
| Immunova HK Limited | | Live |
| ImmunoVentis, Limited | Private company limited by shares | Live |
| IMMUPURE HK LIMITED | Private company limited by shares | Live |
| IMMUTASYS LIMITED | Private company limited by shares | Live |
| LEAN ImmuTech Limited | Private company limited by shares | Live |
| IMMUTEL TECHNOLOGY COMPANY LIMITED | Private company limited by shares | Dissolved |
| Immuvo Limited | Private company limited by shares | Live |
| IMMVIC LIMITED | Private company limited by shares | Dissolved |
| Immvira Pharma Co., Limited | Private company limited by shares | Live |
| IMMY INTERNATIONAL SOURCING LIMITED | Private company limited by shares | Live |
| IMMY TRADING LIMITED | Private company limited by shares | Dissolved |