| Reuter Communications HK Limited | Private company limited by shares | Live |
| R.F. COMMUNICATIONS LIMITED | Private company limited by shares | Dissolved |
| RICE COMMUNICATIONS LIMITED | Private company limited by shares | Live |
| Long Ride Communications Limited | Private company limited by shares | Live |
| RIGHT ONE COMMUNICATIONS (HK) CO., LIMITED | Private company limited by shares | Live |
| YONTO RISIO COMMUNICATIONS LIMITED | Private company limited by shares | Live |
| YELLOW RIVER COMMUNICATIONS LIMITED | Private company limited by shares | Dissolved |
| ROCK COMMUNICATIONS LIMITED | Private company limited by shares | Dissolved |
| ROCKET COMMUNICATIONS LIMITED | Private company limited by shares | Live |
| ROCO COMMUNICATIONS LIMITED | Private company limited by shares | Live |
| ROCTEC COMMUNICATIONS CORPORATION LIMITED | Private company limited by shares | Dissolved |
| RONGHUIGUANG COMMUNICATIONS LIMITED | Private company limited by shares | Live |
| ROOT COMMUNICATIONS LIMITED | Private company limited by shares | Live |
| MEGA ROOTS COMMUNICATIONS LIMITED | Private company limited by shares | Dissolved |
| ROVERFIELD COMMUNICATIONS LIMITED | Private company limited by shares | Dissolved |
| RSVP COMMUNICATIONS LIMITED | Private company limited by shares | Live |
| Rubicon Communications Limited | Private company limited by shares | Live |
| Runasia Communications (HK) Limited | Private company limited by shares | Live |
| RUNLINK COMMUNICATIONS LIMITED | Private company limited by shares | Dissolved |
| SAGE COMMUNICATIONS COMPANY LIMITED | Private company limited by shares | Live |
| SAGE PR & COMMUNICATIONS LIMITED | Private company limited by shares | Live |
| Sanga Communications Company Limited | Private company limited by shares | Live |
| Sanshi Communications Corporation Limited | Private company limited by shares | Dissolved |
| SAOTH COMMUNICATIONS LIMITED | Private company limited by shares | Dissolved |
| SATEGY COMMUNICATIONS LIMITED | Private company limited by shares | Live |
| SATELLITE COMMUNICATIONS LIMITED | Private company limited by shares | Dissolved |
| CII SATELLITE COMMUNICATIONS LIMITED | Private company limited by shares | Dissolved |
| CCT SATELLITE COMMUNICATIONS LIMITED | Private company limited by shares | Live |
| China Satellite Communications VIP Limited | Private company limited by shares | Live |
| CHINA SATELLITE COMMUNICATIONS LIMITED | Private company limited by shares | Live |
| Greater Bay Area Satellite Communications Co., Limited | Private company limited by shares | Live |
| Skybase Satellite Communications Co., Limited | Private company limited by shares | Live |
| NEWTEC DIAMOND SATELLITE COMMUNICATIONS (HK) CO. LIMITED | Private company limited by shares | Live |
| China Satellite Communications Global Limited | Private company limited by shares | Live |
| SATELLITE LINK COMMUNICATIONS, LIMITED | Private company limited by shares | Dissolved |
| SATELLITE PACIFIC COMMUNICATIONS INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| TEAM SATELLITE COMMUNICATIONS COMPANY LIMITED | Private company limited by shares | Live |
| SATELLITE COMMUNICATIONS TECHNOLOGY (HONG KONG) COMPANY LIMITED | Private company limited by shares | Dissolved |
| SATNET COMMUNICATIONS TECHNOLOGY CO., LIMITED | Private company limited by shares | Live |
| SATOR COMMUNICATIONS LIMITED | Private company limited by shares | Live |
| Satoshi Communications Limited | Private company limited by shares | Live |
| SCAAN Communications Company Limited | Private company limited by shares | Dissolved |
| Scion Communications Limited | Private company limited by shares | Live |
| Seamless Communications Company Limited | Private company limited by shares | Live |
| Secure Communications Holding Limited | Private company limited by shares | Live |
| SSH Communications Security Limited | Private company limited by shares | Live |
| SUT LICK SECURITY & COMMUNICATIONS CO. LIMITED | Private company limited by shares | Live |
| TECHNOLOGY COMMUNICATIONS & SECURITY (ASIA) LIMITED | Private company limited by shares | Dissolved |
| TRANS ASIA COMMUNICATIONS & SECURITY LIMITED | Private company limited by shares | Live |
| Seeds Communications Limited | Private company limited by shares | Live |
| SEES COMMUNICATIONS LIMITED | Private company limited by shares | Dissolved |
| SENSES COMMUNICATIONS LIMITED | Private company limited by shares | Dissolved |
| SENSES COMMUNICATIONS LIMITED | Private company limited by shares | Dissolved |
| SENSES SAFECOM COMMUNICATIONS LIMITED | Private company limited by shares | Dissolved |
| SEQUANS COMMUNICATIONS HK LIMITED | Private company limited by shares | Live Commenced dormancy on 12-Sep-2007 |
| Serif Communications & Design Limited | Private company limited by shares | Live |
| SERVCORP COMMUNICATIONS LIMITED | Private company limited by shares | Dissolved |
| BPI COMMUNICATIONS SERVICE LIMITED | Private company limited by shares | Dissolved |
| UFL COMMUNICATIONS SERVICE LIMITED | Private company limited by shares | Dissolved |
| Seven Communications Limited | Private company limited by shares | Live |
| SHAMPOO COMMUNICATIONS LIMITED | Private company limited by shares | Dissolved |
| SHANDONG YHLTNET COMMUNICATIONS & TECHNOLOGY CO., LIMITED | Private company limited by shares | Live |
| SHANGER ADVERTISING & COMMUNICATIONS (H.K.) LIMITED | Private company limited by shares | Dissolved |
| Shanghai Yongpang Communications Equipment Co., Limited | Private company limited by shares | Live |
| Shanghai Peace Communications Company Limited | Private company limited by shares | Live |
| SHEDIAC COMMUNICATIONS LIMITED | Private company limited by shares | Live |
| SHENBANG COMMUNICATIONS (HONGKONG) LIMITED | Private company limited by shares | Live |
| SHERWOOD COMMUNICATIONS LIMITED | Private company limited by shares | Live Commenced dormancy on 01-Dec-1999 |
| SH(H.K.) COMMUNICATIONS LIMITED | Private company limited by shares | Live |
| CHINA SHINETOP COMMUNICATIONS LIMITED | Private company limited by shares | Dissolved |
| SHINKANSEN COMMUNICATIONS LIMITED | Private company limited by shares | Dissolved |
| Shivila Communications Private Limited | Private company limited by shares | Live |
| Shout Sheng Communications, Limited | Private company limited by shares | Dissolved |
| SIGMA COMMUNICATIONS INFORMATION CO., LIMITED | Private company limited by shares | Dissolved |
| Signal Communications Limited | Private company limited by shares | Live |
| SIGNATURE COMMUNICATIONS LIMITED | Private company limited by shares | Live |
| SPIDER SILK COMMUNICATIONS LIMITED | Private company limited by shares | Live |
| SILVERTECH COMMUNICATIONS LIMITED | Private company limited by shares | Live |
| SIM-TEL COMMUNICATIONS LIMITED | Private company limited by shares | Dissolved |
| SINCLAIR COMMUNICATIONS LIMITED | Private company limited by shares | Live |
| SINGH COMMUNICATIONS LIMITED | Private company limited by shares | Live |
| Sinofame Communications Group Limited | Private company limited by shares | Live |
| SINOFIDES COMMUNICATIONS CONSULTANTS LIMITED | Private company limited by shares | Dissolved |
| SinoGlobal Communications Limited | Private company limited by shares | Live |
| SINOLOGUE COMMUNICATIONS LIMITED | Private company limited by shares | Dissolved |
| SINOT COMMUNICATIONS LIMITED | Private company limited by shares | Live |
| SINOVO COMMUNICATIONS LIMITED | Private company limited by shares | Dissolved |
| SINOWAVE COMMUNICATIONS LIMITED | Private company limited by shares | Dissolved |
| SIPTECK COMMUNICATIONS LIMITED | Private company limited by shares | Live |
| SIRIUS COMMUNICATIONS CORPORATION LIMITED | Private company limited by shares | Live |
| SIXSCAPE COMMUNICATIONS LIMITED | Private company limited by shares | Dissolved |
| SKYLAN COMMUNICATIONS LIMITED | Private company limited by shares | Live |
| SKYLINE COMMUNICATIONS LIMITED | Private company limited by shares | Live |
| SKYLINE COMMUNICATIONS HK LIMITED | Private company limited by shares | Live |
| Skywalker Communications Group Limited | Private company limited by shares | Live |
| SKYWARD COMMUNICATIONS LIMITED | Private company limited by shares | Dissolved |
| SKYWARE COMMUNICATIONS LIMITED | Private company limited by shares | Live |
| SLASH COMMUNICATIONS CONSULTANTS LIMITED | Private company limited by shares | Live |
| SLOH COMMUNICATIONS LIMITED | Private company limited by shares | Dissolved |
| Slowly Communications Limited | Private company limited by shares | Live |