| Company Name | Type | Status |
|---|---|---|
| SPIRAX SARCO (HONG KONG) LIMITED | Private company limited by shares | Dissolved |
| Spirax Sarco Hong Kong Company Limited | Private company limited by shares | Live |
| SPIRAX INVESTMENTS LIMITED | Private company limited by shares | Dissolved |
| Spirax Technology Co., Limited | Private company limited by shares | Live |
| SPIRAX SARCO VALVE (HONGKONG) LIMITED | Private company limited by shares | Dissolved |
| SPIRAXSARCO VALVE (UK) CO., LIMITED | Private company limited by shares | Live |