| Company Name | Type | Status |
|---|---|---|
| LAIDLAW COMPANY LIMITED | Private company limited by shares | Dissolved |
| LAIDLAW ASIA LIMITED | Private company limited by shares | Live |
| LAIDLAW PACIFIC (ASIA) LIMITED | Private company limited by shares | Dissolved |
| LAIDLAW WASTE SYSTEMS (HONG KONG) LIMITED | Private company limited by shares | Dissolved |
| LAIDLAW MANAGEMENT & INVESTMENT COMPANY, LIMITED | Private company limited by shares | Dissolved |
| WELLS LAIDLAW LIMITED | Private company limited by shares | Dissolved |