| OCTAGON COMPANY LIMITED | Private company limited by shares | Live |
| Octagon Limited | Private company limited by shares | Live |
| OCTAGON CAPITAL LIMITED | Private company limited by shares | Live |
| OCTAGON ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| Octagon Enterprises Limited | Private company limited by shares | Live |
| OCTAGON ENTERTAINMENT LIMITED | Private company limited by shares | Live |
| Octagon Strategy Limited | Private company limited by shares | Live |
| Octagonal gravity Limited | | Live |
| OctagonLab Limited | | Live |
| OCTAGORA LIMITED | Private company limited by shares | Dissolved |