| Company Name | Type | Status |
|---|---|---|
| Systemo Limited | Private company limited by shares | Live |
| SYSTEMONE LIMITED | Private company limited by shares | Live |
| SystemOne Limited | Live | |
| SYSTEM-ONE COMPUTER COMPANY LIMITED | Private company limited by shares | Dissolved |
| SYSTEM-ONE COMPUTER TECHNOLOGY LIMITED | Private company limited by shares | Dissolved |
| SYSTEMONE TECHNOLOGIES LIMITED | Private company limited by shares | Dissolved |