| CHONG LEE COMMUNICATIONS LIMITED | Private company limited by shares | Dissolved |
| CHRISTIAN COMMUNICATIONS LIMITED | Company limited by guarantee | Live |
| CHRISTIAN COMMUNICATIONS INTERNATIONAL LIMITED | Company limited by guarantee | Live |
| CHRONO COMMUNICATIONS LIMITED | Private company limited by shares | Dissolved |
| CHUANGHUI COMMUNICATIONS LIMITED | Private company limited by shares | Dissolved |
| Chuangjie Communications (HK) Co., Limited | Private company limited by shares | Live |
| COMMUNICATIONS APPLIANCES OU CHUNG (HK) LIMITED | Private company limited by shares | Dissolved |
| CICI COMMUNICATIONS LIMITED | Private company limited by shares | Dissolved |
| CINC COMMUNICATIONS LIMITED | Private company limited by shares | Live |
| CIRCLE COMMUNICATIONS LIMITED | Private company limited by shares | Live |
| CIRCUS COMMUNICATIONS LIMITED | Private company limited by shares | Dissolved |
| CITIPHONE COMMUNICATIONS LIMITED | Private company limited by shares | Dissolved |
| CLARITY COMMUNICATIONS LIMITED | Private company limited by shares | Dissolved |
| MATHEWS & CLARK COMMUNICATIONS (ASIA) LIMITED | Private company limited by shares | Dissolved |
| LOUD'N CLEAR COMMUNICATIONS LIMITED | Private company limited by shares | Dissolved |
| Clearwater Communications Limited | Private company limited by shares | Live |
| CLICK COMMUNICATIONS LIMITED | Private company limited by shares | Dissolved |
| CLIFFORD COMMUNICATIONS LIMITED | Private company limited by shares | Dissolved |
| CLOUD 9 COMMUNICATIONS LIMITED | Private company limited by shares | Live |
| Ocean Cloud Communications Limited | Private company limited by shares | Live |
| Cloudnine Communications Limited | | Live |
| CMMobile Global Communications Limited | Private company limited by shares | Live |
| CM-way Communications Limited | Private company limited by shares | Dissolved |
| CJ COMMUNICATIONS CO., LIMITED | Private company limited by shares | Dissolved |
| CMG COMMUNICATIONS CO., LIMITED | Private company limited by shares | Dissolved |
| CJ COMMUNICATIONS CO., LIMITED | Private company limited by shares | Live |
| ARK COMMUNICATIONS CO., LIMITED | Private company limited by shares | Live |
| INS COMMUNICATIONS CO., LIMITED | Private company limited by shares | Dissolved |
| ECO COMMUNICATIONS CO., LIMITED | Private company limited by shares | Live |
| HHT COMMUNICATIONS CO., LIMITED | Private company limited by shares | Live |
| S&C Communications Co., Limited | Private company limited by shares | Live |
| YCG COMMUNICATIONS CO., LIMITED | Private company limited by shares | Live |
| WK COMMUNICATIONS CO., LIMITED | Private company limited by shares | Live |
| SM COMMUNICATIONS CO., LIMITED | Private company limited by shares | Live |
| RBS COMMUNICATIONS CO., LIMITED | Private company limited by shares | Live |
| Man Wah Communications Co., Limited | Private company limited by shares | Live |
| Wejoy Advertising Communications Co., Limited | Private company limited by shares | Live |
| Asia Communications Co., Limited | Private company limited by shares | Live |
| Beanli Communications Co., Limited | | Live |
| CHENG COMMUNICATIONS INTERNATIONAL CO., LIMITED | Private company limited by shares | Live |
| DIPELL Communications Equipment Co., Limited | Private company limited by shares | Dissolved |
| EASY COMMUNICATIONS (HK) CO., LIMITED | Private company limited by shares | Live |
| 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 |