| Zero Zero Business Traveling Service Limited | Private company limited by shares | Live |
| ZERO SEVEN LIMITED | Private company limited by shares | Live |
| Zero Smith Limited | Private company limited by shares | Live |
| Zero One Solution Limited | | Live |
| Zero time space Community Co., Limited | | Live |
| Spin Zero Limited | Private company limited by shares | Live |
| ZERO STEP COMPANY LIMITED | Private company limited by shares | Dissolved |
| MW ZERO STEP LIMITED | | Live |
| ONE ZERO CAPITAL STOCK LIMITED | Private company limited by shares | Live |
| ZERO STUDIO LIMITED | Private company limited by shares | Live |
| Zero Studio HK Limited | Private company limited by shares | Live |
| ONE BY ZERO STUDIO LIMITED | | Live |
| ZERO ONE STUDIO LIMITED | | Live |
| TEAM ZERO STUDIO LIMITED | Private company limited by shares | Live |
| Zero Style Engineering Company Limited | Private company limited by shares | Live |
| ZERO TO ONE TECH LIMITED | | Live |
| Zero Chain Tech Limited | | Live |
| ZERO TECHNOLOGIES LIMITED | Private company limited by shares | Live |
| Absolute Zero Technologies Limited | Private company limited by shares | Live |
| ZERO EMISSION TECHNOLOGIES LIMITED | Private company limited by shares | Live |
| ZERO ONE TECHNOLOGY COMPANY LIMITED | Private company limited by shares | Dissolved |
| Zero Technology Limited | Private company limited by shares | Dissolved |
| Zero One Technology Limited | Private company limited by shares | Live |
| HK ZERO TIME ELECTRONICS TECHNOLOGY LIMITED | | Live |
| Zero Energy Technology Company Limited | | Live |
| ZERO DEGREE NEW ENERGY TECHNOLOGY HOLDING COMPANY LIMITED | Private company limited by shares | Live |
| EXCELLENT ZERO TECHNOLOGY LIMITED | Private company limited by shares | Live |
| No. Zero Technology Hong Kong Limited | Private company limited by shares | Live |
| Point Zero One Technology Limited | Private company limited by shares | Live |
| Zero Testing Limited | Private company limited by shares | Live |
| ZERO K THERMAL SOLUTION LIMITED | Private company limited by shares | Dissolved |
| Lab Zero Three Limited | Private company limited by shares | Live |
| ZERO THREE LIMITED | Private company limited by shares | Live |
| Zero Two Three Limited | Private company limited by shares | Live |
| Three Six Zero Asia Limited | Private company limited by shares | Live |
| ZERO TIME LIMITED | Private company limited by shares | Dissolved |
| ZERO TIME LIMITED | Private company limited by shares | Live |
| ZERO POINT TRADE LIMITED | Private company limited by shares | Live |
| ZERO TRADING LIMITED | Private company limited by shares | Live |
| B2 ZERO TRADING COMPANY LIMITED | Private company limited by shares | Live |
| ZERO TRADING LIMITED | Private company limited by shares | Live |
| CROSS ZERO TRADING LIMITED | | Live |
| Zero Waste Beauty Holding Limited | Private company limited by shares | Live |
| JAPJAP Zero Waste Limited | | Live |
| ZERO WASTE SYSTEMS LIMITED | Private company limited by shares | Live |
| ZERO WORKSHOP LIMITED | Private company limited by shares | Live |
| Yifei zero Hong Kong Co., Limited | Private company limited by shares | Live |
| Zero21 Limited | Private company limited by shares | Live |
| ZERO2HERO LIMITED | | Live |
| ZERO2HERO CONSULTING LIMITED | | Live |
| Zero2IPO C2V LIMITED | Private company limited by shares | Live |
| Zero2IPO CV2 Limited | Private company limited by shares | Live |
| Zero2IPO CV1 Limited | Private company limited by shares | Live |
| Zero2IPO CV3 Limited | Private company limited by shares | Live |
| Zero2IPO CV4 Limited | Private company limited by shares | Live |
| Zero2one Limited | | Live |
| ZERO-7 LIMITED | Private company limited by shares | Live |
| ZEROBEN LIMITED | Private company limited by shares | Dissolved |
| Net Zerobon Limited | | Live |
| ZERO-C COMPANY LIMITED | | Live |
| ZEROCAP HK LIMITED | | Live |
| ZERO-CLAW Limited | | Live |
| ZeroCode Software Systems Company Limited | Private company limited by shares | Live |
| ZERO.COM LIMITED | Private company limited by shares | Dissolved |
| ZERO-D HOLDING LIMITED | Private company limited by shares | Live |
| ZeroEightHundred Limited | | Live |
| ZeroErr Global Limited | | Live |
| TIN YAT ZERO-F INVESTMENT MANAGEMENT LIMITED | Private company limited by shares | Live |
| ZEROFIRE TECHNOLOGY LIMITED | Private company limited by shares | Dissolved |
| ZEROG Limited | Private company limited by shares | Live |
| ZeroG Game Limited | | Live |
| Hong Kong Aerospace ZeroG Space Technology Limited | | Live |
| ZEROGERM INTERNATIONAL LIMITED | Private company limited by shares | Live |
| ZEROGRA CO., LIMITED | Private company limited by shares | Live |
| ZEROGRA HONG KONG Limited | Private company limited by shares | Live |
| ZERO-HOUR SOCIAL SERVICE ASSOCIATION LIMITED | Company limited by guarantee | Live |
| ZeroHub Limited | Private company limited by shares | Live |
| ZERO-IN DESIGN LIMITED | Private company limited by shares | Live |
| Zeroize Entertainment Limited | Private company limited by shares | Live |
| ZEROLAB HK LIMITED | Private company limited by shares | Live |
| ZEROLABOFFICE LIMITED | Private company limited by shares | Dissolved |
| ZEROLIMITS CONSULTANCY LIMITED | | Live |
| ZeroLine Limited | | Live |
| HK ZEROLL TECHNOLOGY CO., LIMITED | Private company limited by shares | Live |
| Zerologix Limited | Private company limited by shares | Live |
| ZEROMARK (H.K) LIMITED | Private company limited by shares | Live |
| Zeromasaki Limited | Private company limited by shares | Live |
| MIKI ZERO-MAX CO., LIMITED | Private company limited by shares | Live |
| Zero-miracle Network Limited | Private company limited by shares | Live |
| ZERON LIMITED | Private company limited by shares | Dissolved |
| ZERON FASHION LIMITED | Private company limited by shares | Dissolved |
| ZERON (HK) LIMITED | | Live |
| ZERON INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| ZERON INTERNATIONAL TRADING LIMITED | Private company limited by shares | Live |
| ZERONE LIMITED | Private company limited by shares | Live |
| ZerOne Bar Limited | Private company limited by shares | Live |
| Zerone PR Limited | | Live |
| ZERONICS LIMITED | Private company limited by shares | Dissolved |
| ZERONINE LIMITED | Private company limited by shares | Dissolved |
| Zerony Trading Limited | | Live |