| Company Name | Type | Status |
|---|---|---|
| SOUTHGATE LIMITED | Private company limited by shares | Live |
| SOUTHGATE (CHINA) LIMITED | Private company limited by shares | Live |
| Southgate Computer Company Limited | Private company limited by shares | Live |
| SOUTHGATE ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| SOUTHGATE FIRST LIMITED | Private company limited by shares | Dissolved |