| PORTLAND LIMITED | Private company limited by shares | Dissolved |
| PORTLAND LIMITED | Private company limited by shares | Live |
| PORTLAND CAFE LIMITED | Private company limited by shares | Dissolved |
| Portland Catering Limited | | Live |
| RLC (Portland Commercial) Limited | Private company limited by shares | Live |
| Portland Business Consulting Limited | Private company limited by shares | Live |
| PORTLAND ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| PORTLAND ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| PORTLAND GROUP LIMITED | Private company limited by shares | Dissolved |
| PORTLAND DPT INC. LIMITED | Private company limited by shares | Live |
| PORTLAND INVESTMENT COMPANY LIMITED | Private company limited by shares | Dissolved |
| PORTLAND INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| PORTLAND INVESTMENT LIMITED | Private company limited by shares | Live |
| PORTLAND INVESTMENTS LIMITED | Private company limited by shares | Dissolved |
| PORTLAND ASIA PACIFIC LIMITED | Private company limited by shares | Dissolved |
| PORTLAND PRODUCTS LIMITED | Private company limited by shares | Dissolved |
| PORTLAND PROPERTIES LIMITED | Private company limited by shares | Live |
| PORTLAND PROPERTY HOLDING LIMITED | Private company limited by shares | Live |
| PORTLAND TRADING LIMITED | Private company limited by shares | Dissolved |
| Portlanders Limited | Private company limited by shares | Live |