| Hong Kong Mars Communications Limited | | Live |
| NEVIGATE COMMUNICATIONS (HONG KONG) LIMITED | Private company limited by shares | Dissolved |
| NITTEL COMMUNICATIONS HONG KONG LIMITED | Private company limited by shares | Live |
| HONG KONG NODER COMMUNICATIONS LIMITED | Private company limited by shares | Dissolved |
| NUANCE COMMUNICATIONS HONG KONG LIMITED | Private company limited by shares | Live |
| O'MASTER COMMUNICATIONS (HONG KONG) LIMITED | Private company limited by shares | Live |
| A PLUS B (HONG KONG) COMMUNICATIONS LIMITED | Private company limited by shares | Live |
| PRANCE COMMUNICATIONS (HONG KONG) LIMITED | Private company limited by shares | Dissolved |
| QUANTENNA COMMUNICATIONS HONG KONG LIMITED | Private company limited by shares | Live |
| MICROWAVE RADIO COMMUNICATIONS HONG KONG LIMITED | Private company limited by shares | Dissolved |
| HONG KONG REACH COMMUNICATIONS LIMITED | Private company limited by shares | Live |
| REVERE COMMUNICATIONS HONG KONG LIMITED | Private company limited by shares | Live |
| RICH COMMUNICATIONS HONG KONG LIMITED | Private company limited by shares | Live |
| ROOTS COMMUNICATIONS (HONG KONG) LIMITED | Private company limited by shares | Dissolved |
| SCIENTIFIC COMMUNICATIONS (HONG KONG) LIMITED | Private company limited by shares | Dissolved |
| SHIVA COMMUNICATIONS (HONG KONG) LIMITED | Private company limited by shares | Dissolved |
| HONG KONG SISO COMMUNICATIONS LIMITED | Private company limited by shares | Dissolved |
| Hong Kong si-suma Communications Co., Limited | | Live |
| Hong Kong Smooth Communications Limited | Private company limited by shares | Live |
| Hong Kong Soho Communications Limited | Private company limited by shares | Live |
| STAR COMMUNICATIONS HONG KONG LIMITED | Private company limited by shares | Dissolved |
| KKT (HONG KONG) COMMUNICATIONS SYSTEM HOLDING LIMITED | Private company limited by shares | Live |
| TAKADA COMMUNICATIONS (HONG KONG) LIMITED | Private company limited by shares | Dissolved |
| Tata Communications (Hong Kong) Limited | Private company limited by shares | Live |
| CHINA-BESTCOM COMMUNICATIONS TECHNOLOGY (HONG KONG) LIMITED | Private company limited by shares | Live |
| TCL COMMUNICATIONS TECHNOLOGY (HONG KONG) LIMITED | Private company limited by shares | Live |
| Hong Kong Satellite Communications Technology Limited | Private company limited by shares | Live |
| TELE PACIFIC COMMUNICATIONS (HONG KONG) LIMITED | Private company limited by shares | Dissolved |
| L THREE COMMUNICATIONS HONG KONG LIMITED | Private company limited by shares | Dissolved |
| HONG KONG NEW TIMES COMMUNICATIONS LIMITED | Private company limited by shares | Dissolved |
| TOKUMA COMMUNICATIONS (HONG KONG) LIMITED | Private company limited by shares | Dissolved |
| HONG KONG NET TONE COMMUNICATIONS LIMITED | Private company limited by shares | Dissolved |
| HONG KONG TOP-LOGICAL COMMUNICATIONS COMPANY LIMITED | Private company limited by shares | Dissolved |
| TOPWISE COMMUNICATIONS (HONG KONG) LIMITED | Private company limited by shares | Dissolved |
| HONG KONG TOPWISE COMMUNICATIONS LIMITED | Private company limited by shares | Live |
| TRANSPACE COMMUNICATIONS (HONG KONG) LIMITED | Private company limited by shares | Dissolved |
| ULTRA COMMUNICATIONS (CHINA & HONG KONG) LIMITED | Private company limited by shares | Dissolved |
| Zoom Video Communications (Hong Kong) Limited | Private company limited by shares | Live |
| VOCALTEC COMMUNICATIONS HONG KONG LIMITED | Private company limited by shares | Dissolved |
| VOICE & DATA COMMUNICATIONS (HONG KONG) LIMITED | Private company limited by shares | Dissolved |
| V-SQUARED COMMUNICATIONS (HONG KONG) LIMITED | Private company limited by shares | Live |
| WINSTAR COMMUNICATIONS HONG KONG LIMITED | Private company limited by shares | Dissolved |
| HONG KONG WONDERFUL CULTURAL COMMUNICATIONS LIMITED | Private company limited by shares | Live |
| RUI YUAN COMMUNICATIONS HONG KONG LIMITED | Private company limited by shares | Live |
| ZENO COMMUNICATIONS HONG KONG LIMITED | Private company limited by shares | Live |
| HONGDA COMMUNICATIONS (HK) LIMITED | Private company limited by shares | Dissolved |
| HONGTAIDA COMMUNICATIONS (HK) LIMITED | Private company limited by shares | Dissolved |
| Lucky Horse Communications Limited | Private company limited by shares | Live |
| Huachen Communications (Hongkong) Limited | Private company limited by shares | Live |
| HUANDAO COMMUNICATIONS GROUP LIMITED | Private company limited by shares | Dissolved |
| HUATAI COMMUNICATIONS (HK) LIMITED | Private company limited by shares | Live |
| HUAXIN COMMUNICATIONS LIMITED | Private company limited by shares | Live |
| China Huaying Communications Co., Limited | Private company limited by shares | Live |
| HUAYING DATA COMMUNICATIONS (HK) LIMITED | Private company limited by shares | Live |
| Huayucheng Communications Limited | Private company limited by shares | Live |
| AUSTIN HUGHES COMMUNICATIONS (ASIA) LIMITED | Private company limited by shares | Dissolved |
| HUMAN COMMUNICATIONS LIMITED | Private company limited by shares | Dissolved |
| HUNG'S COMMUNICATIONS LIMITED | Private company limited by shares | Live |
| HYBRID COMMUNICATIONS PTE LIMITED | Private company limited by shares | Live |
| i-CABLE Communications Limited | Public company limited by shares | Live |
| ICE-POINT ENTERTAINMENT AND COMMUNICATIONS LIMITED | Private company limited by shares | Dissolved |
| IDEA FACTORY COMMUNICATIONS CO. LIMITED | Private company limited by shares | Live |
| IDEA IMPULSE COMMUNICATIONS COMPANY LIMITED | Private company limited by shares | Live |
| IDEA-BOX COMMUNICATIONS (HONGKONG) COMPANY LIMITED | Private company limited by shares | Live |
| IDEAL COMMUNICATIONS HK LIMITED | Private company limited by shares | Dissolved |
| I.DEAL COMMUNICATIONS LIMITED | Private company limited by shares | Dissolved |
| IDEAL COMMUNICATIONS LIMITED | Private company limited by shares | Live |
| Ideashare Communications Limited | Private company limited by shares | Live |
| IDEO COMMUNICATIONS LIMITED | Private company limited by shares | Live Commenced dormancy on 03-Jan-2008 |
| I-DEVIL COMMUNICATIONS LIMITED | Private company limited by shares | Live |
| i.e. communications limited | Private company limited by shares | Live |
| iFame PR & Communications Limited | | Live |
| IFREEDOM COMMUNICATIONS INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| IGOO COMMUNICATIONS LIMITED | Private company limited by shares | Live |
| IMAGE DESIGN COMMUNICATIONS LIMITED | Private company limited by shares | Live |
| PACIFIC IMAGE COMMUNICATIONS LIMITED | Private company limited by shares | Dissolved |
| iMetta Communications Limited | Private company limited by shares | Dissolved |
| COMMUNICATIONS INC. LIMITED | Private company limited by shares | Dissolved |
| DRAGON TECHNOLOGY & COMMUNICATIONS INC. LIMITED | Private company limited by shares | Live |
| INCLUSIVE COMMUNICATIONS LIMITED | Private company limited by shares | Live |
| INDUCE COMMUNICATIONS COMPANY LIMITED | Private company limited by shares | Dissolved |
| INDUSTRIAL COMMUNICATIONS LIMITED | Private company limited by shares | Dissolved |
| INDUSTRIAL COMMUNICATIONS GROUP LIMITED | Private company limited by shares | Live |
| INDUSTRIAL COMMUNICATIONS (HK) LIMITED | Private company limited by shares | Dissolved |
| HUAFEIYUN TRANSPORT AND COMMUNICATIONS INDUSTRY LIMITED | Private company limited by shares | Live |
| INFINITY COMMUNICATIONS LIMITED | Private company limited by shares | Dissolved |
| INFINITY COMMUNICATIONS LIMITED | Private company limited by shares | Dissolved |
| Infinity Creative Communications Limited | Private company limited by shares | Live |
| INFOEDGE RESEARCH & COMMUNICATIONS LIMITED | Private company limited by shares | Live |
| Infolink Communications Limited | Private company limited by shares | Live |
| INFOTECH COMMUNICATIONS (HK) LIMITED | Private company limited by shares | Dissolved |
| Ingot Communications Limited | Private company limited by shares | Live |
| Inkstone Communications Company Limited | Private company limited by shares | Live |
| Innokids Communications Group Limited | Private company limited by shares | Live |
| INPEACE CULTURAL COMMUNICATIONS CO., LIMITED | Private company limited by shares | Live |
| INSIDE COMMUNICATIONS COMPANY LIMITED | Private company limited by shares | Dissolved |
| INSIGHT COMMUNICATIONS LIMITED | Private company limited by shares | Live |
| INSITE COMMUNICATIONS LIMITED | Private company limited by shares | Live |
| Inspire Communications Limited | Private company limited by shares | Live |
| BECOOL COMMUNICATIONS INSTALLATIONS (H.K) LIMITED | Private company limited by shares | Dissolved |