| DOCO LIMITED | Private company limited by shares | Dissolved |
| DOCOART.COM LIMITED | Private company limited by shares | Live |
| DOCOD PRECISION GROUP LIMITED | Private company limited by shares | Live |
| DOCOM OCEAN SHIPPING CO., LIMITED | Private company limited by shares | Dissolved |
| DOCOM HOLDING LIMITED | Private company limited by shares | Dissolved |
| DOCOM MINERALS LIMITED | Private company limited by shares | Live |
| DOCOME GROUP CO., LIMITED | Private company limited by shares | Live |
| DOCOME TECHNOLOGY (H.K) CO., LIMITED | Private company limited by shares | Live |
| DOCON LIMITED | Private company limited by shares | Dissolved |
| DOCON TECHNOLOGY CO., LIMITED | | Live |
| D'OCON FILMS PRODUCTIONS LIMITED | Private company limited by shares | Dissolved |
| Docon International Limited | Private company limited by shares | Live |
| DOCON SCIENCE AND TECHNOLOGY DEVELOPMENT CO., LIMITED | Private company limited by shares | Live |
| Doconchain Limited | Private company limited by shares | Live |
| DoCool Limited | Private company limited by shares | Live |
| DOCOSS LIMITED | Private company limited by shares | Live |
| Docotex Limited | Private company limited by shares | Live |
| DOCOTTON GROUP LIMITED | Private company limited by shares | Live |
| DOCOWAY LIMITED | Private company limited by shares | Live |