| Mercury Reading Station Limited | Private company limited by shares | Dissolved |
| MERCURY STEAMSHIP COMPANY LIMITED | Private company limited by shares | Live |
| MERCURY STEAMSHIPS LIMITED | Private company limited by shares | Live |
| Mercury Data Storage Limited | Private company limited by shares | Live |
| Mercury Tech Limited | Private company limited by shares | Live |
| MERCURY TECHNOLOGIES LIMITED | Private company limited by shares | Live |
| MERCURY RECYCLING TECHNOLOGIES LIMITED | Private company limited by shares | Dissolved |
| Mercury FinDirect Trading Technologies Limited | Private company limited by shares | Live |
| Mercury Technology Limited | Private company limited by shares | Dissolved |
| MERCURY TWO TECHNOLOGY CO. LIMITED | Private company limited by shares | Live |
| MERCURY TECHNOLOGY CO. LIMITED | Private company limited by shares | Live |
| HK MERCURY BIO TECHNOLOGY LIMITED | Private company limited by shares | Live |
| MERCURY TECHNOLOGY SOLUTION COMPANY LIMITED | Private company limited by shares | Live |
| Mercury Textile and Energy Limited | Private company limited by shares | Live |
| Tonic Mercury Limited | Private company limited by shares | Live |
| MERCURY TRADE LIMITED | Private company limited by shares | Live |
| MERCURY TRADING HK LIMITED | Private company limited by shares | Live |
| MERCURY WEB TRADING LIMITED | Private company limited by shares | Live |
| MERCURY PRO TRADING LIMITED | Private company limited by shares | Live |
| MERCURY TRAVEL LIMITED | Private company limited by shares | Dissolved |
| MERCURY TRAVEL COMPANY LIMITED | Private company limited by shares | Live |
| MERCURY UNDERWATER KINETICS LIMITED | Private company limited by shares | Dissolved |
| Mercury Universal Limited | Private company limited by shares | Live |
| MERCURY VENTURES LIMITED | Private company limited by shares | Live |
| Mercury Victory Shipping Limited | | Live |
| MERCURY WOODWORK COMPANY LIMITED | Private company limited by shares | Dissolved |
| CHINY AND MERCURY WORKSHOP LIMITED | Private company limited by shares | Live |
| Mercury Worldwide Limited | Private company limited by shares | Live |
| MERCURYNOX LIMITED | Private company limited by shares | Dissolved |
| MERCURYSTAR COMPANY LIMITED | Private company limited by shares | Dissolved |
| MERCURYSTONE COMPANY LIMITED | Private company limited by shares | Live |
| MERCUS LIMITED | Private company limited by shares | Dissolved |
| Mercus Entertainment Company Limited | Private company limited by shares | Live |
| MERCUTIO HOLDINGS LIMITED | Private company limited by shares | Live |
| Mercutio International Company Limited | Private company limited by shares | Live |
| MERCY LIMITED | Private company limited by shares | Dissolved |
| ALP MERCY LIMITED | Private company limited by shares | Live |
| MERCY COMPANY LIMITED | Private company limited by shares | Dissolved |
| MERCY LIMITED | Private company limited by shares | Dissolved |
| MERCY POP LIMITED | Private company limited by shares | Dissolved |
| Mercy F&B Limited | Private company limited by shares | Live |
| MERCY LIMITED | Private company limited by shares | Live |
| Mercy HK Limited | Company limited by guarantee | Live |
| JOY MERCY LIMITED | Private company limited by shares | Live |
| No Mercy Limited | Private company limited by shares | Live |
| MERCY SPA LIMITED | | Live |
| Mercy Grace's Home (Aberdeen) Limited | Private company limited by shares | Live |
| MERCY ACCORD LIMITED | Private company limited by shares | Dissolved |
| MERCY FAITH EMPLOYMENT AGENCY LIMITED | Private company limited by shares | Dissolved |
| CHRISTIAN ALLIANCE MERCY CHURCH LIMITED | Company limited by guarantee | Live |
| AMIGOS OF MERCY LIMITED | Private company limited by shares | Live |
| Mercy For Animals Asia Limited | Company limited by guarantee | Live |
| Mercy Association Limited | Private company limited by shares | Live |
| CHINESE SHANDAO MERCY ASSOCIATION LIMITED | Private company limited by shares | Live |
| MERCY BEAUTY LIMITED | | Live |
| MERCY BRAVE LIMITED | Private company limited by shares | Live |
| MERCY BUDDHA MISSION LIMITED | Company limited by guarantee | Live |
| MERCY AND CARE LIMITED | Company limited by guarantee | Live |
| Mercy Elderly Care Centre Limited | Private company limited by shares | Live |
| MERCY CHARM LIMITED | Private company limited by shares | Dissolved |
| CHARTER MERCY INVESTMENTS LIMITED | Private company limited by shares | Live |
| CHINA MERCY INVESTMENT COMPANY LIMITED | Private company limited by shares | Dissolved |
| MERCY & MEEK (CHINA) CORPORATION LIMITED | Private company limited by shares | Dissolved |
| Mercy Grace's Home (Kowloon City) Limited | Private company limited by shares | Live |
| MERCY IMPORT & EXPORT TRADE (HONGKONG) CO., LIMITED | Private company limited by shares | Dissolved |
| MERCY NURSING HOME CO., LIMITED | Private company limited by shares | Live |
| MERCY SALVARE CO., LIMITED | Private company limited by shares | Live |
| MERCY SHIPPING CO., LIMITED | Private company limited by shares | Live |
| MERCY CONSULTANT LIMITED | Private company limited by shares | Live |
| HK MERCY INTERNATIONAL TRADING AND CONSULTING LIMITED | Private company limited by shares | Live |
| MERCY CORPORATION LIMITED | Private company limited by shares | Live |
| MERCY CORPS LIMITED | Company limited by guarantee | Live |
| DRAGON MERCY LIMITED | Private company limited by shares | Live |
| MERCY DYNAMIC LIMITED | Private company limited by shares | Live |
| EXCEL MERCY LIMITED | Private company limited by shares | Live |
| MERCY IMPORT AND EXPORT COMPANY LIMITED | Private company limited by shares | Live |
| MERCY FITNESS LIMITED | | Live |
| MERCY FRONTIER LIMITED | Private company limited by shares | Live |
| Giant Mercy Limited | Private company limited by shares | Live |
| HA PAK NAI THE HALL OF THE GODDESS OF MERCY, BUDDHIST AND TIN HAU TEMPLE LIMITED | Company limited by guarantee | Dissolved |
| HALL OF THE GODDESS OF MERCY, BUDDHIST AND TIN HAU TEMPLE LIMITED -THE- | Company limited by guarantee | Live |
| SHA TIN GODDESS OF MERCY BENEVOLENCE COURT LIMITED | Company limited by guarantee | Dissolved |
| GRACE MERCY ENTERPRISE LIMITED | Private company limited by shares | Live |
| MERCY GRACE'S HOME COMPANY LIMITED | Private company limited by shares | Live |
| Mercy Grace's Home Limited | Private company limited by shares | Live |
| MERCY GRAND LIMITED | Private company limited by shares | Live |
| GRAND MERCY LIMITED | Private company limited by shares | Live |
| MERCY GROUP LIMITED | Private company limited by shares | Dissolved |
| MERCY GROUP CO., LIMITED | Private company limited by shares | Live |
| World Ge Wanshi Mercy Investment Group Co., Limited | Private company limited by shares | Live |
| HONGKONG MERCY MEDICAL INVESTMENT HOLDING GROUP CO., LIMITED | Private company limited by shares | Live |
| HEBEI MERCY SHIPPING CO., LIMITED | Private company limited by shares | Live |
| Mercy Home Company Limited | Company limited by guarantee | Live |
| Mercy Homemaking Service Group of Hong Kong Co., Limited | | Live |
| MERCY (HONG KONG) LIMITED | Private company limited by shares | Dissolved |
| MERCY MET HONG KONG LIMITED | Private company limited by shares | Live |
| MERCY INTERNATIONAL INC. LIMITED | Private company limited by shares | Dissolved |
| MERCY INDUSTRIAL (HK) LIMITED | Private company limited by shares | Live |
| MERCY INTERNATIONAL LIMITED | Private company limited by shares | Live |
| MERCY INVESTMENT LIMITED | Private company limited by shares | Dissolved |