| Yuzhi Information Technology Hong Kong Limited | Private company limited by shares | Live |
| Zenith Information Technology Limited | | Live |
| HK Zhangle Information Technology Co., Limited | Private company limited by shares | Live |
| HK ZHENGQING INFORMATION TECHNOLOGY LIMITED | Private company limited by shares | Live |
| ZhenShi Information Technology (HK) Co., Limited | | Live |
| ZHFD INFORMATION TECHNOLOGY HK LIMITED | Private company limited by shares | Dissolved |
| Zhihua Tongrui Information Technology Limited | Private company limited by shares | Live |
| HK ZHISHI WULIANWANG INFORMATION TECHNOLOGY LIMITED | Private company limited by shares | Live |
| HK ZHONGAO INFORMATION TECHNOLOGY LIMITED | | Live |
| H.K ZHONGYU INFORMATION TECHNOLOGY LIMITED | Private company limited by shares | Dissolved |
| ZhongZhi Information Technology Limited | Private company limited by shares | Live |
| Zitong Information Technology Limited | Private company limited by shares | Live |
| Zoran Information Technology Co., Limited | Private company limited by shares | Live |
| ZTONE INFORMATION TECHNOLOGY LIMITED | Private company limited by shares | Live |
| TINY INFORMATION TECHONOLOGY LIMITED | Private company limited by shares | Live |
| VISIONET INFORMATION TECHONOLOGY ASIA LIMITED | Private company limited by shares | Dissolved |
| TECHSON INFORMATION TECHNOLOGY LIMITED | Private company limited by shares | Live |
| TECHVISION INFORMATION TECHNOLOGY (HK) LIMITED | Private company limited by shares | Dissolved |
| INFORMATION TELECOMMUNICATION COMPANY LIMITED | Private company limited by shares | Dissolved |
| PACIFIC TELECOMMUNICATIONS & INFORMATION LIMITED | Private company limited by shares | Dissolved |
| PACIFIC TELECOMMUNICATIONS & INFORMATION LIMITED | Private company limited by shares | Dissolved |
| ZIGUI TELEVISION (CHINA) NETWORK INFORMATION COMPANY LIMITED | Private company limited by shares | Live Commenced dormancy on 19-May-2016 |
| TELEWAY INFORMATION TECHNOLOGY (HONGKONG) CO., LIMITED | Private company limited by shares | Live |
| TENFOLD INFORMATION TECHNOLOGY (HK) LIMITED | Private company limited by shares | Live |
| TENGSHENG INFORMATION TECHNOLOGY LIMITED | Private company limited by shares | Live |
| THAKRAL INFORMATION TECHNOLOGY GROUP LIMITED | Private company limited by shares | Dissolved |
| Thinkology Information Technology Limited | Private company limited by shares | Live |
| TIANCAI INFORMATION TECHNOLOGY CO. LIMITED | Private company limited by shares | Live |
| TIANCHANG INFORMATION TECHNOLOGY LIMITED | Private company limited by shares | Live |
| TIANDAO INFORMATION TECHNOLOGY LIMITED | Private company limited by shares | Live |
| Tianhong Information Technology LIMITED | | Live |
| Tiller Commercial Information (Hong Kong) Limited | Private company limited by shares | Live |
| TIME INFORMATION COMPANY LIMITED | Private company limited by shares | Dissolved |
| TIMES INFORMATION LIMITED | Private company limited by shares | Live |
| TOKNAV Information Technology Co., Limited | | Live |
| Tolinx Information Technology Limited | Private company limited by shares | Live |
| Tonboo Information Limited | Private company limited by shares | Live |
| TONGDOW BLOCK CHAIN INFORMATION TECHNOLOGY COMPANY LIMITED | Private company limited by shares | Live |
| Tongyi Information Limited | | Live |
| TOPFLY INFORMATION CONSULTANT LIMITED | Private company limited by shares | Live |
| GUANGZHOU TOPSHINE INFORMATION TECHNIC CO., LIMITED | Private company limited by shares | Live |
| Topuco Information Technology Co., Limited | | Live |
| TOPWARE INFORMATION CO. LIMITED | Private company limited by shares | Dissolved |
| TOTAL INFORMATION LIMITED | Private company limited by shares | Live |
| PARADISE INFORMATION TOUR (H.K.) CO. LIMITED | Private company limited by shares | Dissolved |
| EASY TRADE-NET INFORMATION RESOURCES CO. LIMITED | Private company limited by shares | Dissolved |
| LYA Information Trading Limited | | Live |
| INFORMATION MORNING TRADING CO., LIMITED | Private company limited by shares | Live |
| DATASUN TRADING & INFORMATION CO., LIMITED | Private company limited by shares | Dissolved |
| FEIDA INFORMATION TRADING (HK) LIMITED | Private company limited by shares | Live |
| Good Luck Information Technology Trading Limited | | Live |
| KA CHA INFORMATION TECHNOLOGY TRADING LIMITED | Private company limited by shares | Live |
| Yitu Information Technology Trading Co., Limited | | Live |
| MAX ZOOM INFORMATION TRADING SERVICE CO. LIMITED | Private company limited by shares | Live |
| Human Resources Vocational Training Information Management Center Co., Limited | | Live |
| The Youth Information Technology Training Project (Hong Kong) Limited | | Live |
| BY TRANS INFORMATION TECHNOLOGY LIMITED | Private company limited by shares | Live |
| CHINA LARGE TRANSACTION INFORMATION SERVICE CO., LIMITED | Private company limited by shares | Live |
| TRANSN INFORMATION TECHNOLOGY LIMITED | Private company limited by shares | Live |
| DAN HE TRAVEL INFORMATION LIMITED | Private company limited by shares | Live |
| CHINA AIR TRAVEL INFORMATION CO. LIMITED | Private company limited by shares | Live |
| ONE STOP GLOBAL TRAVEL INFORMATION CENTRE LIMITED | Private company limited by shares | Dissolved |
| Queen's Road Travel Information Limited | Private company limited by shares | Live |
| VOLVO TRAVELLING INFORMATION LIMITED | Private company limited by shares | Live |
| TREASURE INFORMATION TECHNOLOGY CO., LIMITED | Private company limited by shares | Dissolved |
| Trenging Information Technology HK Limited | Private company limited by shares | Live |
| Tresin (Hong Kong) Information Technology Company Limited | Private company limited by shares | Live |
| TRIPLE-ENTENTE INFORMATION TECHNOLOGY LIMITED | Private company limited by shares | Dissolved |
| TROY INFORMATION TECH INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| TROY Information Technology Co., Limited | Private company limited by shares | Live |
| TSINGJIAO INFORMATION SCIENCE (HK) LIMITED | Private company limited by shares | Live |
| UBiCube Information Technologies Co., Limited | Private company limited by shares | Live |
| Shanghai Ucloud Information Technology Co., Limited | Private company limited by shares | Live |
| UCloud Information Technology (HK) Limited | Private company limited by shares | Live |
| UENO INFORMATION INTERNATIONAL LIMITED | Private company limited by shares | Live |
| BERJAYA U-LUCK INFORMATION SYSTEMS LIMITED | Private company limited by shares | Live |
| UNIAGE INFORMATION SERVICE COMPANY LIMITED | Private company limited by shares | Dissolved |
| UNICOM-CITY (HONG KONG) INFORMATION TECHNOLOGY LIMITED | Private company limited by shares | Live |
| UNIFY INFORMATION CO., LIMITED | Private company limited by shares | Dissolved |
| UNIFY INFORMATION SYSTEM COMPANY LIMITED | Private company limited by shares | Dissolved |
| Unihoch Health Information Co., Limited | Private company limited by shares | Dissolved |
| Unionbees Network Technology Information Co., Limited | Private company limited by shares | Live |
| Huizhou Unionman Information Technology Co., Limited | Private company limited by shares | Dissolved |
| UNIONMEMORY INFORMATION LIMITED | Private company limited by shares | Live |
| UNITED INFORMATION LIMITED | Private company limited by shares | Dissolved |
| BROTHERS UNITED INFORMATION SERVICE LIMITED | Private company limited by shares | Live |
| UNITED ASIA INFORMATION CO., LIMITED | Private company limited by shares | Dissolved |
| United Acoustic Information (HongKong) Sea Technology Co., Limited | Private company limited by shares | Live |
| UNITED GENE INFORMATION LIMITED | Private company limited by shares | Dissolved |
| UNITED INFORMATION INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| UNITED INFORMATION SYSTEMS LIMITED | Private company limited by shares | Dissolved |
| United Information Technology International Co., Limited | Private company limited by shares | Live |
| UNITED INFORMATION TECHNOLOGY (H.K.) COMPANY LIMITED | Private company limited by shares | Live |
| Unitevo Information Limited | | Live |
| Unitizen Information Co. Limited | Private company limited by shares | Live |
| UNIVERSAL INFORMATION LIMITED | Private company limited by shares | Live |
| UNIVERSAL S & T INFORMATION COMMUNICATION CENTER (H.K.) LIMITED | Private company limited by shares | Dissolved |
| UNIVERSAL INFORMATION CONSULTING CO., LIMITED | Private company limited by shares | Live |
| HK HAKOM UNIVERSAL BUSINESS INFORMATION CONSULTING LIMITED | Private company limited by shares | Live |
| HK UNIVERSAL FINANCE INFORMATION CONSELING LIMITED | Private company limited by shares | Live |