| 福源668有限公司 | Private company limited by shares | Live |
| MDL COMPANY LIMITED | Private company limited by shares | Live |
| A. I. S. E. LIMITED | Private company limited by shares | Dissolved |
| OKA LIMITED | Private company limited by shares | Live |
| 6688 LIMITED | Private company limited by shares | Live |
| 6688 Computer Holdings Limited | Private company limited by shares | Dissolved |
| Leader 6688 HongKong Co., Limited | | Live |
| XIN YIN COMPANY LIMITED | Private company limited by shares | Dissolved |
| 668A Limited | Private company limited by shares | Live |
| 668B Limited | Private company limited by shares | Live |
| 668C Limited | Private company limited by shares | Live |
| 668.COM LIMITED | Private company limited by shares | Live |
| 668D Limited | Private company limited by shares | Live |
| 668E Limited | Private company limited by shares | Live |
| 668F Limited | Private company limited by shares | Live |
| 668G Limited | Private company limited by shares | Live |
| 668ss Limited | | Live |
| 668vv Limited | | Live |