| PERIMETER INTERNATIONAL (HK) COMPANY LIMITED | Private company limited by shares | Live |
| Perimeter International Enterprise (Hong Kong) Limited | Private company limited by shares | Live |
| HK PERIMETER INT'L TRADING LIMITED | Private company limited by shares | Dissolved |
| PERIMETER SWORN MEASURERS & WEIGHERS COMPANY LIMITED | Private company limited by shares | Dissolved |
| PERIMETER RICH LIMITED | | Live |
| PERIMETER SECURITY & TECHNOLOGIES LIMITED | Private company limited by shares | Live |
| Perimeter Trading Limited | Private company limited by shares | Live |
| PerimeterSafe Limited | Private company limited by shares | Live |