| Effectiv Limited | Private company limited by shares | Live |
| EFFECTIVE COMPANY LIMITED | Private company limited by shares | Dissolved |
| EFFECTIVE LIMITED | Private company limited by shares | Dissolved |
| EFFECTIVE WAY LIMITED | Private company limited by shares | Live |
| EFFECTIVE LIMITED | Private company limited by shares | Live |
| TRI EFFECTIVE LIMITED | Private company limited by shares | Live |
| EFFECTIVE MAX LIMITED | Private company limited by shares | Live |
| Effective ED Company Limited | Private company limited by shares | Live |
| EFFECTIVE LIMITED | Private company limited by shares | Live |
| EFFECTIVE ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| HIGHLY EFFECTIVE COMPANY LIMITED | Private company limited by shares | Live |
| EFFECTIVE INC. LIMITED | Private company limited by shares | Dissolved |
| EFFECTIVE LABEL LIMITED | Private company limited by shares | Dissolved |
| EFFECTIVE MARK LIMITED | Private company limited by shares | Live |
| EFFECTIVE STRATEGY LIMITED | Private company limited by shares | Dissolved |
| EFFECTIVSEC MANAGEMENT LIMITED | Private company limited by shares | Dissolved |