| AIRTECH LIMITED | Private company limited by shares | Dissolved |
| AIRTECH LIMITED | Private company limited by shares | Dissolved |
| AIR-TECH LIMITED | Private company limited by shares | Dissolved |
| AAM Airtech Limited | Private company limited by shares | Live |
| AIRTECH M&E HK LIMITED | Private company limited by shares | Live |
| AIRTECH CO., LIMITED | Private company limited by shares | Live |
| AIRTECH CO., LIMITED | Private company limited by shares | Live |
| AirTech Electronic Company Limited | Private company limited by shares | Live |
| AIRTECH GROUP LIMITED | Private company limited by shares | Live |
| Airtech Honkong Limited | | Live |
| Shanghai Airtech Industrial Co., Limited | Private company limited by shares | Live |
| Munters Airtech Limited | Private company limited by shares | Live |
| WELCOME AIR-TECH LIMITED | Private company limited by shares | Live |
| Yadu Air-Tech Limited | Private company limited by shares | Live |