| DONGEYIXIN COMMUNICATIONS (INTERNATIONAL)CO., LIMITED | Private company limited by shares | Live |
| DOVE COMMUNICATIONS LIMITED | Private company limited by shares | Dissolved |
| DOWAX COMMUNICATIONS LIMITED | Private company limited by shares | Dissolved |
| TEL DRAGON COMMUNICATIONS CO. LIMITED | Private company limited by shares | Live |
| DRAGON-INN COMMUNICATIONS COMPANY LIMITED | Private company limited by shares | Live |
| DREAM COMMUNICATIONS COMPANY LIMITED | Private company limited by shares | Dissolved |
| DARE TO DREAM COMMUNICATIONS LIMITED | Private company limited by shares | Dissolved |
| DREAM TEAM COMMUNICATIONS LIMITED | Private company limited by shares | Live |
| dreamUp Communications Limited | Private company limited by shares | Live |
| Dtalk Communications Technology Co., Limited | Private company limited by shares | Dissolved |
| DUET COMMUNICATIONS LIMITED | Private company limited by shares | Live |
| DUNN COMMUNICATIONS LIMITED | Private company limited by shares | Dissolved |
| DUNYA COMMUNICATIONS LIMITED | Private company limited by shares | Dissolved |
| DURALITE COMMUNICATIONS LIMITED | Private company limited by shares | Live |
| DURATONE COMMUNICATIONS LIMITED | Private company limited by shares | Dissolved |
| DYNACOM COMMUNICATIONS LIMITED | Private company limited by shares | Live |
| DYNAMIC COMMUNICATIONS LIMITED | Private company limited by shares | Dissolved |
| DYNASTY COMMUNICATIONS LIMITED | Private company limited by shares | Dissolved |
| EAON COMMUNICATIONS LIMITED | Private company limited by shares | Live |
| FAR EAST COMMUNICATIONS COMPANY LIMITED | Private company limited by shares | Dissolved |
| East Communications Limited | Private company limited by shares | Dissolved |
| Far East Communications Limited | Private company limited by shares | Live |
| FIRST EASTERN COMMUNICATIONS GROUP LIMITED | Private company limited by shares | Dissolved |
| EAST-WEST COMMUNICATIONS LIMITED | Private company limited by shares | Dissolved |
| EASY COMMUNICATIONS LIMITED | Private company limited by shares | Dissolved |
| ECLIPSE COMMUNICATIONS LIMITED | Private company limited by shares | Live |
| New Economy Communications Limited | Private company limited by shares | Live |
| ECreative Communications Limited | Private company limited by shares | Dissolved |
| Red Edge Communications Limited | Private company limited by shares | Dissolved |
| Nhu Edge Communications, Limited | Private company limited by shares | Dissolved |
| EDKO COMMUNICATIONS LIMITED | Private company limited by shares | Live |
| EDUCATIONAL COMMUNICATIONS LIMITED | Private company limited by shares | Dissolved |
| EIKOS COMMUNICATIONS LIMITED | Private company limited by shares | Dissolved |
| EKON - ALL FOR COMMUNICATIONS LIMITED | Private company limited by shares | Dissolved |
| eKoutone Communications Limited | Private company limited by shares | Live |
| ELAINE COMMUNICATIONS ENTERPRISE LIMITED | Private company limited by shares | Dissolved |
| ELEBANA COMMUNICATIONS LIMITED | Private company limited by shares | Dissolved |
| WIVO COMMUNICATIONS & ELECTRONIC LIMITED | Private company limited by shares | Live |
| ELECTRONICS AND COMMUNICATIONS LIMITED | Private company limited by shares | Dissolved |
| PAN-LINK ELECTRONICS & COMMUNICATIONS CO. LIMITED | Private company limited by shares | Dissolved |
| CLASSIC ELEMENT COMMUNICATIONS LIMITED | Private company limited by shares | Live |
| Eleve Communications Limited | | Live |
| ELITE COMMUNICATIONS (HK) LIMITED | Private company limited by shares | Live |
| ELIVELY COMMUNICATIONS LIMITED | Private company limited by shares | Dissolved |
| Ellu Teo PR & Communications (HK) Limited | Private company limited by shares | Live |
| EMERGING COMMUNICATIONS LIMITED | Private company limited by shares | Live |
| EMPIRE COMMUNICATIONS LIMITED -THE- | Private company limited by shares | Dissolved |
| Empower China Communications HK Limited | Private company limited by shares | Live |
| Endeavour Communications Limited | | Live |
| Energy Communications Limited | Private company limited by shares | Live |
| COMMUNICATIONS ENGINEERING LIMITED | Private company limited by shares | Live |
| TM COMMUNICATIONS ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| ARTEK COMMUNICATIONS ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| EXPRESS COMMUNICATIONS ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| FORTUNE COMMUNICATIONS ENGINEERING LIMITED | Private company limited by shares | Live |
| YAT HING COMMUNICATIONS NETWORK ENGINEERING LIMITED | Private company limited by shares | Live |
| INDUCE COMMUNICATIONS ENGINEERING LIMITED | Private company limited by shares | Live |
| LADEN COMMUNICATIONS ENGINEERING COMPANY LIMITED | Private company limited by shares | Dissolved |
| RICHES GOLD COMMUNICATIONS (H.K.) ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| SPECTRUM COMMUNICATIONS ENGINEERING LIMITED | Private company limited by shares | Live |
| SUNLINK COMMUNICATIONS ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| HUA TONG COMMUNICATIONS ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| UNITED COMMUNICATIONS ELECTRICAL ENGINEERING COMPANY LIMITED | Private company limited by shares | Live |
| ENHANCED COMMUNICATIONS LOGIC LIMITED | Private company limited by shares | Live |
| ENNESSE COMMUNICATIONS LIMITED | Private company limited by shares | Live |
| ENTERPRISES COMMUNICATIONS LIMITED | Private company limited by shares | Dissolved |
| ENTROPIC COMMUNICATIONS HONG KONG HOLDING LIMITED | Private company limited by shares | Dissolved |
| ENTROPIC COMMUNICATIONS (HONG KONG) LIMITED | Private company limited by shares | Live |
| E-PHOTICS COMMUNICATIONS LIMITED | Private company limited by shares | Live |
| EPIC COMMUNICATIONS LIMITED | Private company limited by shares | Live |
| ePlus Communications Limited | Private company limited by shares | Dissolved |
| EPOCH COMMUNICATIONS LIMITED | Private company limited by shares | Dissolved |
| H T COMMUNICATIONS EQUIPMENT COMPANY LIMITED | Private company limited by shares | Dissolved |
| ESTHER COMMUNICATIONS LIMITED | Private company limited by shares | Live |
| ETERNAL COMMUNICATIONS LIMITED | Private company limited by shares | Live |
| BEST ETERNAL COMMUNICATIONS LIMITED | Private company limited by shares | Live |
| E-Tone Communications Limited | Private company limited by shares | Live |
| ETOPEL COMMUNICATIONS LIMITED | Private company limited by shares | Live |
| EUREKA COMMUNICATIONS LIMITED | Private company limited by shares | Dissolved |
| EVANS COMMUNICATIONS LIMITED | Private company limited by shares | Live Commenced dormancy on 05-Aug-2011 |
| Event Expert Events & Communications Limited | Private company limited by shares | Live |
| JAM EVENTS AND COMMUNICATIONS LIMITED | Private company limited by shares | Live |
| OM Events & Communications Limited | | Live |
| Association and Communications Events Limited | Private company limited by shares | Live Commenced dormancy on 07-Nov-2013 |
| On Stage Events and Communications Limited | Private company limited by shares | Live |
| EVER ACHIEVE COMMUNICATIONS GROUP LIMITED | Private company limited by shares | Live |
| EVERBRIGHT COMMUNICATIONS LIMITED | Private company limited by shares | Live |
| EVEREST COMMUNICATIONS LIMITED | Private company limited by shares | Live |
| COMMUNICATIONS EXCELLENCE INTERNATIONAL COMPANY LIMITED | Private company limited by shares | Dissolved |
| EXECUTIVE COMMUNICATIONS LIMITED | Private company limited by shares | Dissolved |
| Exitel Communications Limited | Private company limited by shares | Live |
| Pure Experiential Communications Agency Limited | Private company limited by shares | Live |
| WB Expo Communications Limited | Private company limited by shares | Live |
| EXPRESS COMMUNICATIONS LIMITED | Private company limited by shares | Dissolved |
| TOP EXPRESS COMMUNICATIONS LIMITED | Private company limited by shares | Live |
| EXTEL COMMUNICATIONS LIMITED | Private company limited by shares | Dissolved |
| Eyes Mind & Soul Communications Co., Limited | Private company limited by shares | Dissolved |
| Fabstory Communications (H.K) Limited | Private company limited by shares | Live |
| Fabulous Communications Limited | Private company limited by shares | Live |
| FAME COMMUNICATIONS LIMITED | Private company limited by shares | Dissolved |