| UCMS Communications Corporation Limited | Private company limited by shares | Live |
| ULTRANET COMMUNICATIONS LIMITED | Private company limited by shares | Dissolved |
| UNICOM COMMUNICATIONS COMPANY LIMITED | Private company limited by shares | Dissolved |
| UNICORN COMMUNICATIONS LIMITED | Private company limited by shares | Dissolved |
| UNICORN COMMUNICATIONS LIMITED | Private company limited by shares | Live |
| UNIFI COMMUNICATIONS HK LIMITED | Private company limited by shares | Dissolved |
| UNILINK COMMUNICATIONS LIMITED | Private company limited by shares | Dissolved |
| UNIPOWER COMMUNICATIONS LIMITED | Private company limited by shares | Dissolved |
| UNITED COMMUNICATIONS LIMITED | Private company limited by shares | Dissolved |
| ONE UNITED COMMUNICATIONS LIMITED | Private company limited by shares | Live |
| UNITED COMMUNICATIONS (H.K.) CORPORATION LIMITED | Private company limited by shares | Live |
| UNITED COMMUNICATIONS (HK) LIMITED | Private company limited by shares | Dissolved |
| United Network Communications Limited | | Live |
| UNITEL HK COMMUNICATIONS TECHNOLOGY LIMITED | Private company limited by shares | Dissolved |
| Universal Communications International Company Limited | Private company limited by shares | Live |
| UNIVERSITY OF COMMUNICATIONS (HONG KONG) LIMITED | Private company limited by shares | Live |
| UNLIMITED COMMUNICATIONS LIMITED | Private company limited by shares | Dissolved |
| COMMUNICATIONS UNLIMITED LIMITED | Private company limited by shares | Dissolved |
| UPON COMMUNICATIONS LIMITED | Private company limited by shares | Live |
| UPON-A-STAR COMMUNICATIONS LIMITED | Private company limited by shares | Live |
| AD VALUE COMMUNICATIONS LIMITED | Private company limited by shares | Live |
| VANE COMMUNICATIONS LIMITED | Private company limited by shares | Live |
| VEGA COMMUNICATIONS LIMITED | Private company limited by shares | Dissolved |
| VEGGIE M COMMUNICATIONS LIMITED | Private company limited by shares | Live |
| VENTURE COMMUNICATIONS LIMITED | Private company limited by shares | Dissolved |
| VERIDONE COMMUNICATIONS LIMITED | Private company limited by shares | Live |
| HEADWAY VERMONT COMMUNICATIONS LIMITED | Private company limited by shares | Dissolved |
| Versawire Communications (H.K) Limited | Private company limited by shares | Dissolved |
| Victoria Communications Limited | Private company limited by shares | Live |
| VICTORY COMMUNICATIONS LIMITED | Private company limited by shares | Dissolved |
| VIDEO COMMUNICATIONS LIMITED | Private company limited by shares | Dissolved |
| ViDeOnline Communications (Asia) Limited | Private company limited by shares | Live |
| ViDeOnline Communications (HK) Limited | Private company limited by shares | Live |
| VIDIA COMMUNICATIONS INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| VIPER COMMUNICATIONS ASIA LIMITED | Private company limited by shares | Dissolved |
| Virtree Communications Limited | Private company limited by shares | Live |
| VISION COMMUNICATIONS LIMITED | Private company limited by shares | Live |
| SKY VISION COMMUNICATIONS LIMITED | Private company limited by shares | Dissolved |
| Visionary Communications Consultancy Limited | Private company limited by shares | Live |
| VISIONS COMMUNICATIONS LIMITED | Private company limited by shares | Dissolved |
| VISUAL COMMUNICATIONS LIMITED | Private company limited by shares | Dissolved |
| ig Visual Communications Limited | | Live |
| VISUAL BANK COMMUNICATIONS LIMITED | Private company limited by shares | Dissolved |
| GENESIS VISUAL & COMMUNICATIONS LIMITED | Private company limited by shares | Dissolved |
| VITA GREEN COMMUNICATIONS LIMITED | Private company limited by shares | Live |
| VITAL COMMUNICATIONS ASIA LIMITED | Private company limited by shares | Live |
| VITAL COMMUNICATIONS CO., LIMITED | Private company limited by shares | Live |
| VITALITY COMMUNICATIONS LIMITED | Private company limited by shares | Dissolved |
| VIVID COMMUNICATIONS LIMITED | Private company limited by shares | Dissolved |
| VIVO COMMUNICATIONS LIMITED | Private company limited by shares | Dissolved |
| V-LINK COMMUNICATIONS LIMITED | Private company limited by shares | Live |
| VOEUX COMMUNICATIONS LIMITED | Private company limited by shares | Live |
| VOGUE COMMUNICATIONS LIMITED | Private company limited by shares | Dissolved |
| VOGUE COMMUNICATIONS LIMITED | Private company limited by shares | Live |
| VoIPNeed Communications Limited | Private company limited by shares | Dissolved |
| V-SENSE COMMUNICATIONS LIMITED | Private company limited by shares | Dissolved |
| VTECH COMMUNICATIONS LIMITED | Private company limited by shares | Live |
| VTOP COMMUNICATIONS GROUP CO., LIMITED | Private company limited by shares | Dissolved |
| VTurn Communications Limited | Private company limited by shares | Live |
| WALLYS COMMUNICATIONS TECHNOLOGIES CO., LIMITED | Private company limited by shares | Live |
| WANAAG COMMUNICATIONS LIMITED | Private company limited by shares | Dissolved |
| WANG TON COMMUNICATIONS LIMITED | Private company limited by shares | Live |
| WANZHONG COMMUNICATIONS TECHNOLOGY CO., LIMITED | Private company limited by shares | Live |
| WAVE COMMUNICATIONS COMPANY LIMITED | Private company limited by shares | Live |
| WAYSUN COMMUNICATIONS LIMITED | Private company limited by shares | Dissolved |
| WEIAI COMMUNICATIONS LIMITED | Private company limited by shares | Live |
| WELLINK COMMUNICATIONS LIMITED | Private company limited by shares | Live |
| WeR1 Communications Limited | Private company limited by shares | Live |
| WHARF COMMUNICATIONS LIMITED | Private company limited by shares | Live |
| WHITE HORSE COMMUNICATIONS GROUP LIMITED | Private company limited by shares | Dissolved |
| White Horse Communications Group Limited | Private company limited by shares | Live |
| WHITE SPACE COMMUNICATIONS LIMITED | Private company limited by shares | Live |
| WIDERWAYS COMMUNICATIONS LIMITED | Private company limited by shares | Live |
| Widetel Communications Company Limited | Private company limited by shares | Dissolved |
| WILNET COMMUNICATIONS LIMITED | Private company limited by shares | Dissolved |
| WILSON COMMUNICATIONS LIMITED | Private company limited by shares | Live |
| WINDOW COMMUNICATIONS CO., LIMITED | Private company limited by shares | Dissolved |
| WING ON COMMUNICATIONS LIMITED -THE- | Private company limited by shares | Dissolved |
| Sky Wings Communications Company Limited | Private company limited by shares | Live |
| DRAGON WINGS COMMUNICATIONS LIMITED | Private company limited by shares | Live Commenced dormancy on 14-Jan-2015 |
| WINMAX COMMUNICATIONS LIMITED | Private company limited by shares | Live Commenced dormancy on 06-Jul-2015 |
| WINTEL COMMUNICATIONS CO., LIMITED | Private company limited by shares | Live |
| WINX ELECTRONICS COMMUNICATIONS CO., LIMITED | Private company limited by shares | Dissolved |
| WISE SUN COMMUNICATIONS LIMITED | Private company limited by shares | Dissolved |
| Wohoo Communications & Creative Limited | Private company limited by shares | Live |
| Wolfcircle Communications Limited | | Live |
| WOLFF COMMUNICATIONS (ASIA) LIMITED | Private company limited by shares | Dissolved |
| WONG'S COMMUNICATIONS (VIETNAM) LIMITED | Private company limited by shares | Dissolved |
| WOODS COMMUNICATIONS LIMITED | Private company limited by shares | Live |
| WORDS UP COMMUNICATIONS LIMITED | Private company limited by shares | Dissolved |
| WORK COMMUNICATIONS LIMITED | Private company limited by shares | Live |
| VE WORKSHOP COMMUNICATIONS LIMITED | Private company limited by shares | Dissolved |
| A WORKSHOP COMMUNICATIONS LIMITED | Private company limited by shares | Live |
| WORLDLINK COMMUNICATIONS LIMITED | Private company limited by shares | Dissolved |
| WORLDNET COMMUNICATIONS LIMITED | Private company limited by shares | Dissolved |
| WORLDNET COMMUNICATIONS (HK) LIMITED | Private company limited by shares | Dissolved |
| WORLD-TECH COMMUNICATIONS LIMITED | Private company limited by shares | Dissolved |
| WORLDTEL COMMUNICATIONS LIMITED | Private company limited by shares | Live Ceased dormancy on 25-Feb-2002 |
| WORLINK COMMUNICATIONS (HONGKONG) CO., LIMITED | | Live |
| WOUXUN COMMUNICATIONS LIMITED | | Live |