| YET MAN HONG COMMUNICATIONS LIMITED | Private company limited by shares | Live |
| Allot Communications (Hong Kong) Limited | Private company limited by shares | Live |
| ARBINET COMMUNICATIONS HONG KONG LIMITED | Private company limited by shares | Dissolved |
| HONG KONG ARTSTA ARTS COMMUNICATIONS LIMITED | Private company limited by shares | Dissolved |
| COMMUNICATIONS ASSOCIATION OF HONG KONG LIMITED | Company limited by guarantee | Live |
| AUGMENT COMMUNICATIONS (HONG KONG) LIMITED | Private company limited by shares | Dissolved |
| AUSTRALIA ASIA COMMUNICATIONS HONG KONG LIMITED | Private company limited by shares | Dissolved |
| AVATAR COMMUNICATIONS HONG KONG LIMITED | Private company limited by shares | Dissolved |
| BANK OF COMMUNICATIONS (HONG KONG) LIMITED | Private company limited by shares | Live |
| Belross Communications Hong Kong Limited | Private company limited by shares | Live |
| BETA-LINK COMMUNICATIONS (HONG KONG) LIMITED | Private company limited by shares | Dissolved |
| HONG KONG BEYOND COMMUNICATIONS LIMITED | Private company limited by shares | Live |
| BriteNum Communications (Hong Kong) Limited | Private company limited by shares | Live |
| HONG KONG CABLE COMMUNICATIONS LIMITED | Private company limited by shares | Live |
| CHINA ICO COMMUNICATIONS INVESTMENT (HONG KONG) LIMITED | Private company limited by shares | Live |
| CHINA COMMUNICATIONS & INVESTMENT (HONG KONG) LIMITED | Private company limited by shares | Dissolved |
| HONG KONG COMMUNICATIONS (CHINA) COMPANY LIMITED | Private company limited by shares | Dissolved |
| CHINA HONG KONG COMMUNICATIONS TECHNOLOGY COMPANY LIMITED | Private company limited by shares | Live |
| HONG KONG CHUANGYI COMMUNICATIONS CO., LIMITED | Private company limited by shares | Live |
| ClearOne Communications Hong Kong, Limited | Private company limited by shares | Live |
| CBF COMMUNICATIONS (HONG KONG) CO., LIMITED | Private company limited by shares | Live |
| HONG KONG IMI COMMUNICATIONS CO., LIMITED | Private company limited by shares | Live |
| T&S Communications (Hong Kong) Co., Limited | | Live |
| Hong kong Yiwei Communications Co., Limited | | Live |
| COMIO COMMUNICATIONS (HONG KONG) LIMITED | Private company limited by shares | Live |
| HONG KONG COMMERCIAL DAILY COMMUNICATIONS COMPANY LIMITED | Private company limited by shares | Dissolved |
| ADVANCED COMPUTER COMMUNICATIONS (HONG KONG) LIMITED | Private company limited by shares | Dissolved |
| HONG KONG COMMUNICATIONS COMPUTER COMPANY LIMITED | Private company limited by shares | Dissolved |
| COSINE COMMUNICATIONS HONG KONG LIMITED | Private company limited by shares | Dissolved |
| Hong Yan Cultural Communications Limited | Private company limited by shares | Live |
| HONG KONG CHINESE CULTURAL COMMUNICATIONS LIMITED | Private company limited by shares | Dissolved |
| HONG KONG QINGHUACI CULTURAL COMMUNICATIONS LIMITED | Private company limited by shares | Live |
| DANAM COMMUNICATIONS (HONG KONG) LIMITED | Private company limited by shares | Dissolved |
| Hong Kong New Communications Digital Technology Co Limited | Private company limited by shares | Live |
| Hong Kong Ascent Dragon Communications Company Limited | Private company limited by shares | Live |
| YUXIN ELECTRONIC COMMUNICATIONS (HONG KONG) LIMITED | Private company limited by shares | Dissolved |
| Exactta Communications Hong Kong Limited | Private company limited by shares | Dissolved |
| SE GLOBAL COMMUNICATIONS (HONG KONG) LIMITED | Private company limited by shares | Dissolved |
| GLOBAL COMMUNICATIONS HONG KONG LIMITED | Private company limited by shares | Dissolved |
| HONG KONG NEW GLOBAL COMMUNICATIONS LIMITED | Private company limited by shares | Dissolved |
| HONG KONG COMMUNICATIONS GROUP LIMITED | Private company limited by shares | Live |
| HONG KONG HOPE COMMUNICATIONS LIMITED | Private company limited by shares | Dissolved |
| HUAKE COMMUNICATIONS TECHNOLOGY (HONG KONG) LIMITED | Private company limited by shares | Live |
| IFONEX COMMUNICATIONS (HONG KONG) LIMITED | Private company limited by shares | Dissolved |
| IFREEDOM COMMUNICATIONS HONG KONG LIMITED | Private company limited by shares | Dissolved |
| INFOHIGHWAY COMMUNICATIONS (HONG KONG) LIMITED | Private company limited by shares | Live |
| INFOLINK COMMUNICATIONS (HONG KONG) LIMITED | Private company limited by shares | Dissolved |
| INTECH COMMUNICATIONS (HONG KONG) COMPANY LIMITED | Private company limited by shares | Dissolved |
| INTERSHOP COMMUNICATIONS HONG KONG CO. LIMITED | Private company limited by shares | Dissolved |
| Hong Kong Communications Investment Company Limited | | Live |
| HONG KONG COMMUNICATIONS INVESTMENTS LIMITED | Private company limited by shares | Dissolved |
| JINBOLI (HONG KONG) COMMUNICATIONS LIMITED | Private company limited by shares | Dissolved |
| HONG KONG COMMUNICATIONS JOURNAL LIMITED | Private company limited by shares | Dissolved |
| ADC COMMUNICATIONS HONG KONG LIMITED | Private company limited by shares | Live |
| KB COMMUNICATIONS HONG KONG LIMITED | Private company limited by shares | Dissolved |
| NEW ERA COMMUNICATIONS (HONG KONG) LIMITED | Private company limited by shares | Dissolved |
| HONG KONG COMMUNICATIONS COMPANY LIMITED | Private company limited by shares | Live |
| L-3 COMMUNICATIONS HONG KONG LIMITED | Private company limited by shares | Live |
| WE COMMUNICATIONS (HONG KONG) COMPANY LIMITED | Private company limited by shares | Live |
| RLG COMMUNICATIONS (HONG KONG) LIMITED | Private company limited by shares | Live |
| AM COMMUNICATIONS HONG KONG LIMITED | Private company limited by shares | Live |
| B & B COMMUNICATIONS HONG KONG LIMITED | Private company limited by shares | Dissolved |
| TT Communications (Hong Kong) Limited | Private company limited by shares | Live |
| Hong Kong Wah Jue Communications Limited | | Live |
| HONG FEI COMMUNICATIONS EQUIPMENT (HONG KONG) LIMITED | Private company limited by shares | Dissolved |
| COMMUNICATIONS EXCHANGE OF HONG KONG LIMITED | Private company limited by shares | Dissolved |
| NEXT FIFTEEN COMMUNICATIONS HONG KONG LIMITED | Private company limited by shares | Live Ceased dormancy on 25-Jun-2004 |
| Strategy & Communications (Hong Kong) Group Limited | Private company limited by shares | Live |
| IMAGINE COMMUNICATIONS HONG KONG LIMITED | Private company limited by shares | Dissolved |
| KYUSYU SOCIAL COMMUNICATIONS HONG KONG COMPANY LIMITED | Private company limited by shares | Live |
| Level 3 Communications Hong Kong Limited | Private company limited by shares | Live |
| MATSUNICHI COMMUNICATIONS (HONG KONG) LIMITED | Private company limited by shares | Live |
| RELIANCE COMMUNICATIONS (HONG KONG) LIMITED | Private company limited by shares | Live |
| DC SYSTEMS DIGITAL COMMUNICATIONS (HONG KONG) LIMITED | Private company limited by shares | Live |
| TRISQUARE COMMUNICATIONS (HONG KONG) COMPANY LIMITED | Private company limited by shares | Dissolved |
| Xtera Communications Hong Kong Limited | Private company limited by shares | Live |
| YungSheng Communications (Hong Kong) Limited | Private company limited by shares | Dissolved |
| KUBE (HONG KONG) DESIGN COMMUNICATIONS LIMITED | Private company limited by shares | Live |
| 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 |