| GROM Limited | Private company limited by shares | Live |
| GROMAN INT'L GROUP STOCK CO. LIMITED | Private company limited by shares | Dissolved |
| GROMAN-NANO LIMITED | Private company limited by shares | Dissolved |
| GROMARC CO., LIMITED | Private company limited by shares | Live |
| GROMARK INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| GROMARK TRADING LIMITED | Private company limited by shares | Dissolved |
| GROME ESTATES LIMITED | Private company limited by shares | Dissolved |
| GroMedical Limited | | Live |
| Gromseph Capital one Limited | Private company limited by shares | Live |
| GROMWELL LIMITED | Private company limited by shares | Live |