| 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 |
| FASHIONISTAS COMMUNICATIONS LIMITED | Private company limited by shares | Dissolved |
| Feneur Communications Company Limited | Private company limited by shares | Live |
| BAO FENG COMMUNICATIONS TECHNOLOGY CO., LIMITED | Private company limited by shares | Live |
| Fenix Communications Limited | Private company limited by shares | Live |
| FEPA Investor Communications Limited | Private company limited by shares | Live |
| FIBERLINK COMMUNICATIONS COMPANY LIMITED | Private company limited by shares | Live |
| FICTIONAL REALITY COMMUNICATIONS LIMITED | Private company limited by shares | Live |
| GET LIKE FINANCIAL COMMUNICATIONS LIMITED | Private company limited by shares | Live |
| TRINITY FINANCIAL COMMUNICATIONS ADVISORY LIMITED | Private company limited by shares | Live |
| Wealth Icon Financial Communications (HK) Limited | Private company limited by shares | Live |
| Wealth Icon Financial Communications Limited | Private company limited by shares | Live |
| FIREBRAND COMMUNICATIONS LIMITED | Private company limited by shares | Dissolved |
| FIREWOOD COMMUNICATIONS COMPANY LIMITED | Private company limited by shares | Live |
| Fise Communications Limited | Private company limited by shares | Live |
| FLAGMAN COMMUNICATIONS LIMITED | Private company limited by shares | Live |
| FLAMING COMMUNICATIONS LIMITED | Private company limited by shares | Dissolved |
| Flink Communications Limited | Private company limited by shares | Live |
| FLORENTINE COMMUNICATIONS COMPANY LIMITED | Private company limited by shares | Live |
| Flow Creative Communications Limited | | Live |
| Fluid Communications Limited | Private company limited by shares | Live |
| FLYANG COMMUNICATIONS TECHNOLOGY LIMITED | Private company limited by shares | Live |
| Flyjoying Communications Limited | Private company limited by shares | Live |
| FOCUS COMMUNICATIONS LIMITED | Private company limited by shares | Dissolved |
| FOCUSONE COMMUNICATIONS LIMITED | Private company limited by shares | Live |
| Fonescape Communications (H.K.) Limited | Private company limited by shares | Live |
| Foodbook Communications Group Co., Limited | Private company limited by shares | Live |
| A FORCE COMMUNICATIONS LIMITED | Private company limited by shares | Dissolved |
| FORTIS COMMUNICATIONS LIMITED | Private company limited by shares | Dissolved |
| FORTRESS COMMUNICATIONS LIMITED | Private company limited by shares | Dissolved |
| FORTUNE NET COMMUNICATIONS LIMITED | Private company limited by shares | Dissolved |
| AD FORTUNE COMMUNICATIONS LIMITED | Private company limited by shares | Live |
| FORTUNE COMMUNICATIONS INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| BANK OF COMMUNICATIONS CHARITABLE FOUNDATION LIMITED | Company limited by guarantee | Live |
| The Foundry Communications Limited | | Live |
| Francis Communications Technology Co., Limited | Private company limited by shares | Live |
| FRONTLINE COMMUNICATIONS CORPORATION LIMITED | Private company limited by shares | Dissolved |
| FUJISANKEI COMMUNICATIONS INTERNATIONAL LIMITED | Private company limited by shares | Live |
| Fullz Communications Technology Company Limited | Private company limited by shares | Live |
| FUMO COMMUNICATIONS LIMITED | Private company limited by shares | Live |
| Fung Hang Communications Limited | Private company limited by shares | Live |
| FUSE COMMUNICATIONS LIMITED | Private company limited by shares | Dissolved |
| FUSION COMMUNICATIONS CO., LIMITED | Private company limited by shares | Live |
| FUTEL COMMUNICATIONS LIMITED | Private company limited by shares | Live |
| Future Radio Communications HK Company Limited | Private company limited by shares | Dissolved |
| FUTURESCORE COMMUNICATIONS LIMITED | Private company limited by shares | Dissolved |
| FUTURETECH COMMUNICATIONS LIMITED | Private company limited by shares | Dissolved |
| GadgetKing Communications and Technology (HK) Company Limited | Private company limited by shares | Live |
| GAIA Communications Limited | Private company limited by shares | Live |
| GALAXY COMMUNICATIONS LIMITED | Private company limited by shares | Dissolved |
| GALAXY COMMUNICATIONS LIMITED | Private company limited by shares | Live |
| GALAXY COMMUNICATIONS ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| Gamba Communications Limited | | Live |
| GANNET COMMUNICATIONS INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| GATEWAY COMMUNICATIONS LIMITED | Private company limited by shares | Dissolved |
| GATEWAY COMMUNICATIONS LIMITED | Private company limited by shares | Live |
| GATEWAY COMMUNICATIONS (H.K.) LIMITED | Private company limited by shares | Dissolved |
| Gauge Key Communications Limited | Private company limited by shares | Live |
| Gaze Communications Limited | Private company limited by shares | Live |
| GEEMEDIA COMMUNICATIONS LIMITED | Private company limited by shares | Live |
| GENERAL COMMUNICATIONS COMPANY LIMITED | Private company limited by shares | Dissolved |
| GENERATION-S COMMUNICATIONS HK LIMITED | | Live |