| SUMATRA LIMITED | Private company limited by shares | Live |
| Sumatra Power Investment Corp. Limited | Private company limited by shares | Live |
| SUMATRA FRATERNITY LIMITED | Company limited by guarantee | Live |
| SUMATRA INVESTMENT COMPANY LIMITED | Private company limited by shares | Dissolved |
| Sumatra Everbright Resources Limited | Private company limited by shares | Live |
| SUMATRA TIMBER COMPANY LIMITED | Private company limited by shares | Dissolved |
| SUMATRA WOODCRAFT COMPANY LIMITED | Private company limited by shares | Dissolved |
| SUMATRADE LIMITED | Private company limited by shares | Live |