| VIRO LIMITED | Private company limited by shares | Live |
| VIRO GROUP LIMITED | Private company limited by shares | Live |
| VIRO INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| VIRO ROBOTICS COMPANY LIMITED | Private company limited by shares | Live |
| VIRO TECHNOLOGY LIMITED | Private company limited by shares | Live |
| VIROJANGLOR China Limited | Private company limited by shares | Live |
| VIROJANGLOR (CHINA) MANUFACTORY LIMITED | Private company limited by shares | Dissolved |
| VIROJANGLOR China Manufacturing Co. Limited | Private company limited by shares | Dissolved |
| Virola Limited | Private company limited by shares | Live |
| Virolmedia Limited | Private company limited by shares | Live |
| Centre for Virology, Vaccinology and Therapeutics Limited | Company limited by guarantee | Live |
| VIRON GARMENT FACTORY LIMITED | Private company limited by shares | Dissolved |
| Green Viron Limited | Private company limited by shares | Dissolved |
| VIRONE LIMITED | | Live |
| H.K. HOYAZEN VIRONMENTALART DESIGN GROUP LIMITED | Private company limited by shares | Dissolved |
| VIRONTTE LIMITED | Private company limited by shares | Dissolved |
| VIROSA LIMITED | Private company limited by shares | Live |
| VirosPack Limited | | Live |
| VIROTEX LIMITED | Private company limited by shares | Dissolved |
| VIROYAL PRODUCTS LIMITED | Private company limited by shares | Live |