| Haina Communication Technology (HK) Limited | Private company limited by shares | Dissolved |
| HIGH-SPEED COMMUNICATION TECHNOLOGY LIMITED | Private company limited by shares | Dissolved |
| HIGHTECH COMMUNICATION TECHNOLOGY LIMITED | Private company limited by shares | Dissolved |
| ZTG Communication Technology (HK) Co Limited | Private company limited by shares | Live |
| BAJIN COMMUNICATION TECHNOLOGY (HK) COMPANY LIMITED | Private company limited by shares | Live |
| DELIN COMMUNICATION TECHNOLOGY (HK) LIMITED | Private company limited by shares | Live |
| NAMO Communication Technology (HK) Limited | Private company limited by shares | Live |
| RUIXIANG COMMUNICATION TECHNOLOGY (HK) LIMITED | Private company limited by shares | Live |
| COMMUNICATION TECHNOLOGY HOLDING LIMITED | Private company limited by shares | Dissolved |
| UNITE COMMUNICATION TECHNOLOGY (HOLDING) LIMITED | Private company limited by shares | Dissolved |
| Hongda Communication (HK) Technology Limited | Private company limited by shares | Live |
| YK COMMUNICATION TECHNOLOGY (HONGKONG) LIMITED | Private company limited by shares | Dissolved |
| FAR TECHNOLOGY COMMUNICATION (HONGKONG) LIMITED | Private company limited by shares | Live |
| HongXu Communication Technology Co., Limited | Private company limited by shares | Live |
| HOWIN COMMUNICATION TECHNOLOGY (HK) COMPANY LIMITED | Private company limited by shares | Live |
| HUAQI COMMUNICATION TECHNOLOGY CO., LIMITED | Private company limited by shares | Dissolved |
| MAP COMMUNICATION TECHNOLOGY INC. LIMITED | Private company limited by shares | Dissolved |
| Jadestone Communication Technology Co., Limited | Private company limited by shares | Live |
| Jiawei Electronic Communication Technology Co., Limited | Private company limited by shares | Live |
| HUIZHOU JIEZHI COMMUNICATION TECHNOLOGY CO., LIMITED | Private company limited by shares | Live |
| JINHUA COMMUNICATION TECHNOLOGY CO., LIMITED | Private company limited by shares | Live |
| JIUJIN COMMUNICATION TECHNOLOGY (HK) COMPANY LIMITED | Private company limited by shares | Live |
| JIUZHOUHUAKE COMMUNICATION TECHNOLOGY CO., LIMITED | Private company limited by shares | Live |
| JOSH COMMUNICATION TECHNOLOGY CO., LIMITED | Private company limited by shares | Live |
| Junteng Communication Technology Limited | Private company limited by shares | Dissolved |
| KEENWAY COMMUNICATION TECHNOLOGY LIMITED | Private company limited by shares | Live |
| KINGDIGITAL COMMUNICATION TECHNOLOGY LIMITED | Private company limited by shares | Dissolved |
| KINGLOY COMMUNICATION TECHNOLOGY LIMITED | Private company limited by shares | Dissolved |
| KINGPOU COMMUNICATION TECHNOLOGY CO., LIMITED | Private company limited by shares | Dissolved |
| KOREA TRI STAR COMMUNICATION TECHNOLOGY (HK) LIMITED | Private company limited by shares | Dissolved |
| LANAN COMMUNICATION TECHNOLOGY CO., LIMITED | Private company limited by shares | Live |
| LANAO COMMUNICATION TECHNOLOGY LIMITED | Private company limited by shares | Live |
| LANSHENG COMMUNICATION TECHNOLOGY (HK) CO., LIMITED | Private company limited by shares | Live |
| LEADER COMMUNICATION TECHNOLOGY COMPANY LIMITED | Private company limited by shares | Live |
| HK LEFANDA COMMUNICATION TECHNOLOGY LIMITED | Private company limited by shares | Dissolved |
| LETU COMMUNICATION TECHNOLOGY CO., LIMITED | Private company limited by shares | Live |
| Lianchuang Communication Technology Limited | Private company limited by shares | Live |
| LINGHANG COMMUNICATION TECHNOLOGY LIMITED | Private company limited by shares | Dissolved |
| HK LIXIN COMMUNICATION TECHNOLOGY LIMITED | Private company limited by shares | Dissolved |
| HK LUCKY COMMUNICATION TECHNOLOGY LIMITED | Private company limited by shares | Live |
| M2M-ACME COMMUNICATION TECHNOLOGY LIMITED | Private company limited by shares | Live |
| MEIJIN COMMUNICATION TECHNOLOGY (H.K.) LIMITED | Private company limited by shares | Live |
| COMMUNICATION NETWORK TECHNOLOGY LIMITED | Private company limited by shares | Dissolved |
| NETWORK COMMUNICATION TECHNOLOGY LIMITED | Private company limited by shares | Dissolved |
| Cloudcom Network Communication Technology Limited | Private company limited by shares | Live |
| Network Communication Technology Co., Limited | Private company limited by shares | Live |
| NEWSTAR COMMUNICATION TECHNOLOGY LIMITED | Private company limited by shares | Dissolved |
| NOVA TECHNOLOGY & COMMUNICATION LIMITED | Private company limited by shares | Live Commenced dormancy on 07-Oct-2004 |
| ORIGINAL COMMUNICATION TECHNOLOGY CO., LIMITED -THE- | Private company limited by shares | Live |
| PACIFIC COMMUNICATION TECHNOLOGY LIMITED | Private company limited by shares | Live |
| Padwin Communication Technology Co., Limited | Private company limited by shares | Live |
| Pamirs Communication Technology Co., Limited | Private company limited by shares | Live |
| Shenzhen Pengning Communication Technology Limited | | Live |
| Photowave Communication Technology Limited | | Live |
| PLUSLEY TECHNOLOGY COMMUNICATION LIMITED | Private company limited by shares | Dissolved |
| HK Prince Communication Technology Limited | Private company limited by shares | Live |
| HK QiPing Communication Technology Limited | Private company limited by shares | Live |
| QUANZHOU TALKCOOP COMMUNICATION TECHNOLOGY CO., LIMITED | Private company limited by shares | Live |
| REXCON COMMUNICATION TECHNOLOGY COMPANY LIMITED | Private company limited by shares | Dissolved |
| Safe link Communication Technology Company Limited | Private company limited by shares | Live |
| SAMSUNG COMMUNICATION TECHNOLOGY LIMITED | Private company limited by shares | Dissolved |
| SANMU COMMUNICATION TECHNOLOGY (H.K.) LIMITED | Private company limited by shares | Dissolved |
| HK SHANGHAOJI COMMUNICATION TECHNOLOGY LIMITED | Private company limited by shares | Live |
| Shengyuan Communication Technology Limited | Private company limited by shares | Live |
| SHENZHEN KRS COMMUNICATION TECHNOLOGY LIMITED | Private company limited by shares | Live |
| Shigeng Communication Technology (HK) Co., Limited | | Live |
| SINGHOO COMMUNICATION TECHNOLOGY LIMITED | Private company limited by shares | Dissolved |
| SinoCloud Communication Technology Limited | | Live |
| SINOEXC COMMUNICATION TECHNOLOGY LIMITED | Private company limited by shares | Dissolved |
| Soling Communication Technology (HongKong) Co., Limited | Private company limited by shares | Live |
| KIN STAR COMMUNICATION TECHNOLOGY LIMITED | Private company limited by shares | Dissolved |
| STAR COMMUNICATION TECHNOLOGY CO., LIMITED | Private company limited by shares | Dissolved |
| SEA STAR COMMUNICATION TECHNOLOGY (HK) LIMITED | Private company limited by shares | Live |
| SUPER COMMUNICATION TECHNOLOGY COMPANY LIMITED | Private company limited by shares | Dissolved |
| TALENT COMMUNICATION TECHNOLOGY COMPANY LIMITED | Private company limited by shares | Dissolved |
| TayMobile Communication Technology Limited | Private company limited by shares | Live |
| T-fiber HK Communication Technology Co., Limited | Private company limited by shares | Live |
| TianLai Communication Technology Co., Limited | Private company limited by shares | Live |
| TIANYATONG COMMUNICATION TECHNOLOGY (SHENZHEN) LIMITED | Private company limited by shares | Dissolved |
| TIMO COMMUNICATION TECHNOLOGY (HK) CO., LIMITED | Private company limited by shares | Live |
| Toyoky Communication Technology Company Limited | Private company limited by shares | Live |
| Unicair Communication Technology Limited | Private company limited by shares | Live |
| UTOP COMMUNICATION TECHNOLOGY LIMITED | Private company limited by shares | Live |
| VAST COMMUNICATION TECHNOLOGY LIMITED | Private company limited by shares | Live |
| HK VELL-COM COMMUNICATION TECHNOLOGY LIMITED | Private company limited by shares | Live |
| RATIONAL VIDEO & COMMUNICATION TECHNOLOGY (HK) LIMITED | Private company limited by shares | Live |
| WELLBE COMMUNICATION TECHNOLOGY LIMITED | Private company limited by shares | Live |
| WELLGIN COMMUNICATION TECHNOLOGY (HK) LIMITED | Private company limited by shares | Dissolved |
| Communication World Wide Technology Limited | Private company limited by shares | Live |
| WINTEK COMMUNICATION TECHNOLOGY CO., LIMITED | Private company limited by shares | Live |
| WINUP COMMUNICATION TECHNOLOGY CO., LIMITED | Private company limited by shares | Live |
| XINDA COMMUNICATION TECHNOLOGY (HK) LIMITED | Private company limited by shares | Dissolved |
| XINGQI COMMUNICATION TECHNOLOGY (H.K.) LIMITED | Private company limited by shares | Dissolved |
| Xinke Communication Technology Co., Limited | Private company limited by shares | Live |
| HK XUANDI COMMUNICATION TECHNOLOGY LIMITED | Private company limited by shares | Live |
| XUDONG COMMUNICATION TECHNOLOGY LIMITED | Private company limited by shares | Live |
| Xuhui Communication Technology Co., Limited | Private company limited by shares | Live |
| YOUFUN COMMUNICATION TECHNOLOGY LIMITED | Private company limited by shares | Live |
| KAM YUEN COMMUNICATION TECHNOLOGY LIMITED | Private company limited by shares | Live |
| YUYI COMMUNICATION & TECHNOLOGY (HK) CO., LIMITED | Private company limited by shares | Dissolved |