| Company Name | Type | Status |
|---|---|---|
| Prefix Limited | Private company limited by shares | Live |
| PREFIX GROUP LIMITED | Private company limited by shares | Dissolved |
| PREFIX INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| PREFIX LICENSING LIMITED | Private company limited by shares | Live |
| PREFIX PUBLICATION LIMITED | Private company limited by shares | Dissolved |
| PrefixWare Limited | Private company limited by shares | Live |