| EI Communications Equipment Co., Limited | Private company limited by shares | Live |
| EVERTOP COMMUNICATIONS CO., LIMITED | Private company limited by shares | Live |
| FIBERTOWER COMMUNICATIONS CO., LIMITED | Private company limited by shares | Live |
| GRANDBEING COMMUNICATIONS CO., LIMITED | Private company limited by shares | Live |
| GRANDUNIVERSE COMMUNICATIONS CO., LIMITED | Private company limited by shares | Live |
| ZT COMMUNICATIONS (HK) CO., LIMITED | Private company limited by shares | Live |
| J&S COMMUNICATIONS (HK) CO., LIMITED | Private company limited by shares | Live |
| VOPIER COMMUNICATIONS (HK) CO., LIMITED | Private company limited by shares | Dissolved |
| INTEGRATION COMMUNICATIONS CO., LIMITED | Private company limited by shares | Live |
| Sinaco Integration Communications Co., Limited | Private company limited by shares | Live |
| JINHUI COMMUNICATIONS CO., LIMITED | Private company limited by shares | Dissolved |
| Lingjia Communications Co., Limited | Private company limited by shares | Dissolved |
| Linkage Communications Co., Limited | Private company limited by shares | Live |
| NGSN COMMUNICATIONS NETWORK (HK) CO., LIMITED | Private company limited by shares | Live |
| NEWSTAR COMMUNICATIONS EQUIPMENT CO., LIMITED | Private company limited by shares | Live |
| OPTOP COMMUNICATIONS CO., LIMITED | Private company limited by shares | Dissolved |
| OPZEAL COMMUNICATIONS CO., LIMITED | Private company limited by shares | Live |
| POSGEN COMMUNICATIONS CO., LIMITED | Private company limited by shares | Dissolved |
| PROFUTURE COMMUNICATIONS INTERNATIONAL CO., LIMITED | Private company limited by shares | Live |
| RICHMIX COMMUNICATIONS CO., LIMITED | Private company limited by shares | Dissolved |
| Signaling Communications (HK) Co., Limited | Private company limited by shares | Live |
| SoDa Communications Co., Limited | Private company limited by shares | Live |
| SOUKA COMMUNICATIONS CO., LIMITED | Private company limited by shares | Dissolved |
| SPDEPHONE COMMUNICATIONS CO., LIMITED | Private company limited by shares | Dissolved |
| UNIMAX COMMUNICATIONS (HK) CO., LIMITED | Private company limited by shares | Dissolved |
| WALETECH COMMUNICATIONS CO., LIMITED | Private company limited by shares | Live |
| WONDER COMMUNICATIONS CO., LIMITED | Private company limited by shares | Dissolved |
| XIMS COMMUNICATIONS CO., LIMITED | Private company limited by shares | Live |
| XINYUAN COMMUNICATIONS (HK) CO., LIMITED | Private company limited by shares | Live |
| Zeyang Communications Co., Limited | | Live |
| Lead the Way Communications Coaching Limited | Private company limited by shares | Live |
| COBY COMMUNICATIONS LIMITED | Private company limited by shares | Live |
| COCCO Communications Limited | Private company limited by shares | Dissolved |
| CODA COMMUNICATIONS LIMITED | Private company limited by shares | Dissolved |
| CODESIGN COMMUNICATIONS LIMITED | Private company limited by shares | Dissolved |
| COGENT COMMUNICATIONS LIMITED | Private company limited by shares | Live |
| Cogent Communications Hong Kong Limited | Private company limited by shares | Live |
| COLDSTEEL COMMUNICATIONS LIMITED | Private company limited by shares | Dissolved |
| COLLECOM COMMUNICATIONS (H.K.) LIMITED | Private company limited by shares | Dissolved |
| COLON COMMUNICATIONS LIMITED | Private company limited by shares | Live |
| 8 COLORS COMMUNICATIONS LIMITED | Private company limited by shares | Dissolved |
| COMEASY COMMUNICATIONS LIMITED | Private company limited by shares | Live Ceased dormancy on 10-Sep-2007 |
| COMMA COMMUNICATIONS COMPANY LIMITED | Private company limited by shares | Dissolved |
| COMMA COMMUNICATIONS COMPANY LIMITED | Private company limited by shares | Live |
| COMMAX COMMUNICATIONS LIMITED | Private company limited by shares | Live |
| COMMERCIAL COMMUNICATIONS LIMITED | Private company limited by shares | Dissolved |
| CHUNGKUO COMMERCIAL COMMUNICATIONS LIMITED | Private company limited by shares | Dissolved |
| Companion Communications Limited | Private company limited by shares | Live |
| COMPASS COMMUNICATIONS COMPANY LIMITED | Private company limited by shares | Dissolved |
| COMPASS COMMUNICATIONS LIMITED | Private company limited by shares | Dissolved |
| COMPLEX COMMUNICATIONS LIMITED -THE- | Private company limited by shares | Dissolved |
| BSR COMMUNICATIONS COMPONENTS LIMITED | Private company limited by shares | Dissolved |
| COMSTAR COMMUNICATIONS LIMITED | Private company limited by shares | Live |
| CONCEPT LAB COMMUNICATIONS COMPANY LIMITED | Private company limited by shares | Dissolved |
| L Concept Communications Limited | Private company limited by shares | Live |
| CONCEPT COMMUNICATIONS (CHINA) LIMITED | Private company limited by shares | Live |
| TEAM CONCEPT FINANCIAL COMMUNICATIONS LIMITED | Private company limited by shares | Live |
| CONCEPT COMMUNICATIONS (HK) LIMITED | Private company limited by shares | Live |
| PURE CONCEPT COMMUNICATIONS LIMITED | Private company limited by shares | Live |
| CONCERT COMMUNICATIONS LIMITED | Private company limited by shares | Dissolved |
| CONCORD COMMUNICATIONS LIMITED | Private company limited by shares | Dissolved |
| CONCORDIA COMMUNICATIONS & NETWORKS LIMITED | Private company limited by shares | Live |
| Connect Communications Limited | | Live |
| CHRISTIAN COMMUNICATIONS CONNECTED LIMITED | Company limited by guarantee | Live |
| Connection Communications Limited | Private company limited by shares | Live |
| CONNI BIESALSKI COMMUNICATIONS LIMITED | Private company limited by shares | Live |
| China Communications Urban Construction Fund Limited | Private company limited by shares | Live |
| China Communications Urban Construction Group Limited | Private company limited by shares | Live |
| China Hunsons Communications Construction Company Limited | Private company limited by shares | Live |
| VIS COMMUNICATIONS CONSULTANCY LIMITED | Private company limited by shares | Live |
| PACIFIC COMMUNICATIONS NETWORK AND CONSULTANCY LIMITED | Private company limited by shares | Dissolved |
| RUO YA COMMUNICATIONS CONSULTANT LIMITED | | Live |
| COSMIC COMMUNICATIONS & MARKETING CONSULTANT LIMITED | Private company limited by shares | Live |
| HEALTH CARE & COMMUNICATIONS CONSULTANT LIMITED | Private company limited by shares | Live |
| LBS COMMUNICATIONS CONSULTING LIMITED | Private company limited by shares | Live |
| Catalyst Communications Consulting Limited | Private company limited by shares | Live |
| ELYSEE COMMUNICATIONS & CONSULTING CO., LIMITED | Private company limited by shares | Live |
| CONTACT COMMUNICATIONS LIMITED | Private company limited by shares | Live |
| CENTURY CONTACT COMMUNICATIONS LIMITED | Private company limited by shares | Dissolved |
| COMMUNICATIONS & CONTROLS LIMITED | Private company limited by shares | Dissolved |
| Coolnet Communications Limited | | Live |
| Cornerstone Communications HK Limited | Private company limited by shares | Live |
| Cornerstones Communications Limited | Private company limited by shares | Live |
| CORNWAY COMMUNICATIONS LIMITED | Private company limited by shares | Dissolved |
| CORNWAY COMMUNICATIONS (HK) LIMITED | Private company limited by shares | Dissolved |
| CORPORATE COMMUNICATIONS LIMITED | Private company limited by shares | Dissolved |
| MCL Corporate Communications Limited | Private company limited by shares | Live |
| PW ASIA CORPORATE COMMUNICATIONS LIMITED | Private company limited by shares | Dissolved |
| Asia Corporate Communications Limited | Private company limited by shares | Live |
| DUBAN CORPORATE COMMUNICATIONS LIMITED | Private company limited by shares | Dissolved |
| BROADSYS COMMUNICATIONS CORPORATION LIMITED | Private company limited by shares | Dissolved |
| GAO COMMUNICATIONS (HK) CORPORATION LIMITED | Private company limited by shares | Live |
| COSMORAMA COMMUNICATIONS COMPANY LIMITED | Private company limited by shares | Dissolved |
| NEW COSMOS ADVERTISING & COMMUNICATIONS CO. LIMITED | Private company limited by shares | Dissolved |
| Cosworth Communications Limited | Private company limited by shares | Dissolved |
| Covora Communications Limited | Private company limited by shares | Live |
| MIND CRAFTING COMMUNICATIONS LIMITED | | Live |
| CREATE COMMUNICATIONS (HK) LIMITED | Private company limited by shares | Live |
| Creation Communications Limited | | Live |
| Minerals Creations and Communications Limited | Private company limited by shares | Live |