| Company Name | Type | Status |
|---|---|---|
| QUALITAIR TECH LIMITED | Private company limited by shares | Dissolved |
| Qualitas Limited | Private company limited by shares | Live |
| QUALITAS FAR EAST LIMITED | Private company limited by shares | Dissolved |
| Qualitas Primum Limited | Private company limited by shares | Dissolved |
| A&A QUALITATIVE CONSULTANCY LIMITED | Private company limited by shares | Live |