| M.Y.S. ASSOCIATED LIMITED | Private company limited by shares | Dissolved |
| WESTFURN DESIGN (MYS) COMPANY LIMITED | Private company limited by shares | Live |
| MY'S HOLDING INVESTMENTS COMPANY LIMITED | Private company limited by shares | Dissolved |
| MY'S TECHNOLOGY LIMITED | Private company limited by shares | Live |
| MYSA COMPANY LIMITED | Private company limited by shares | Dissolved |
| MYSAFETY INDUSTRY CO., LIMITED | Private company limited by shares | Live |
| HK MYSANIG DRESS LIMITED | Private company limited by shares | Dissolved |
| MYSCO GROUP LIMITED | Private company limited by shares | Live |
| MyScoresLive Limited | Private company limited by shares | Dissolved |
| Mysee Medical Limited | Private company limited by shares | Live |
| I CAN DO IT MYSELF LIMITED | Private company limited by shares | Dissolved |
| MYSELF LIMITED | Private company limited by shares | Live |
| SEE MYSELF LIMITED | | Live |
| Myself Fashion Limited | | Live |
| MYSELF GROUP LIMITED | Private company limited by shares | Dissolved |
| LOVE MYSELF LIMITED | Private company limited by shares | Live |
| Mysen International Hong Kong Company Limited | | Live |
| My-Series Information Co Limited | Private company limited by shares | Live |
| Mysha Limited | Private company limited by shares | Live |
| Mysharedbike Limited | Private company limited by shares | Live |
| MySharingCorner Limited | Private company limited by shares | Live |
| Myshine Limited | Private company limited by shares | Live |
| MYSHINE APPAREL INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| MYSHINE CO., LIMITED | Private company limited by shares | Dissolved |
| MYSHINE COMMERCIAL DISPLAYS LIMITED | Private company limited by shares | Live |
| HK MYSHINE GROUP HIJOY INT'L FOOD LIMITED | Private company limited by shares | Dissolved |
| Hongkong Myshine International trade Co., LIMITED | Private company limited by shares | Live |
| MYSHINE INTERNATIONAL CORPORATION LIMITED | Private company limited by shares | Live |
| MYSHINE INTERNATIONAL HOLDINGS LIMITED | Private company limited by shares | Live |
| MYSHIP HK LIMITED | | Live |
| MYSHOPPING LIFESTYLE LIMITED | Private company limited by shares | Dissolved |
| MYSHOW LIMITED | Private company limited by shares | Live |
| Myshow Fashion Company Limited | Private company limited by shares | Live |
| MYSIA LIMITED | Private company limited by shares | Live |
| MYSIAM LIMITED | Private company limited by shares | Live |
| MYSINO BIZ LIMITED | Private company limited by shares | Live |
| MYSINO INTERNATIONAL TRADING COMPANY LIMITED | Private company limited by shares | Live |
| MYS-Invest Limited | Private company limited by shares | Live |
| MYSIS SALON & SPA LIMITED | | Live |
| mySister.hk Limited | Private company limited by shares | Dissolved |
| mySiteHK Limited | Private company limited by shares | Live |
| MYSK LIMITED | Private company limited by shares | Dissolved |
| Myskin Limited | Private company limited by shares | Live |
| MySky Limited | Private company limited by shares | Live |
| MYSKYJOB LIMITED | Private company limited by shares | Live |
| MYSKYLINE LIMITED | | Live |
| HK MYSLINK ELECTRONICS CO., LIMITED | Private company limited by shares | Live |
| mySmartJarvis Limited | Private company limited by shares | Live |
| My-Smartt Limited | Private company limited by shares | Live |
| MYSMARTTOOL LIMITED | Private company limited by shares | Live |
| MYSO LIMITED | Private company limited by shares | Dissolved |
| MYSOBIO COMPANY LIMITED | Private company limited by shares | Live |
| Mysolartech Co., Limited | Private company limited by shares | Live |
| MYSOLO LIMITED | Private company limited by shares | Live |
| Mysolutions Asia Co Limited | Private company limited by shares | Live |
| Myson Limited | Private company limited by shares | Live |
| Mysoul Crafts Limited | Private company limited by shares | Live |
| MYSP LIMITED | Private company limited by shares | Dissolved |
| MYSP LIMITED | Private company limited by shares | Live |
| My Coach My Movement MySpace Limited | | Live |
| Myspeed Limited | Private company limited by shares | Live |
| my-Spexx Limited | Private company limited by shares | Live |
| MYST LIMITED | Private company limited by shares | Live |
| MYST ENTERPRISE CO., LIMITED | Private company limited by shares | Live |
| Myst Investment Limited | Private company limited by shares | Live |
| MYST TECH LIMITED | | Live |
| MYSTA HK INTERNATIONAL CO., LIMITED | Private company limited by shares | Live |
| MYSTAR TECHNOLOGY CO., LIMITED | Private company limited by shares | Dissolved |
| Mystart Limited | Private company limited by shares | Live |
| MYSTATICE COMPANY LIMITED | Private company limited by shares | Live |
| MYSTEEL MO HK LIMITED | Private company limited by shares | Live |
| MYSTEM LIMITED | Private company limited by shares | Live |
| MYSTEP LIMITED | Private company limited by shares | Live |
| MYSTEP 227 LIMITED | Private company limited by shares | Live |
| mYSTEPS Limited | | Live |
| MYSTERE INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| Mysteri International Holdings Corporation Limited | Private company limited by shares | Live |
| Mysterio Limited | Private company limited by shares | Dissolved |
| Mysterio Limited | Private company limited by shares | Live |
| MYSTERIOUS BOX CO., LIMITED | Private company limited by shares | Live |
| Hong Kong Mysterious Cultural Communications Limited | Private company limited by shares | Live |
| Mysterious Stone & Crystal Company Limited | Private company limited by shares | Live |
| Mysterious Dream Limited | | Live |
| East Mysterious Power Limited | | Live |
| MYSTERIOUS FIRE DIGITAL Technology Limited | Private company limited by shares | Live |
| Hong Kong Mysterious Man Firm Limited | | Live |
| Mysterious Glamour Hong Kong Limited | Private company limited by shares | Dissolved |
| MYSTERIOUS EASTERN HERBS (HONG KONG) LIMITED | Private company limited by shares | Dissolved |
| HONGKONG MYSTERIOUS ENVIRONMENTAL PROTECTION TECHNOLOGY LIMITED | Private company limited by shares | Dissolved |
| Mysterious Industrial Co., Limited | | Live |
| MYSTERIOUS MOON INTERNATIONAL LIMITED | Private company limited by shares | Live |
| Mysterious Island Hotel Management Co., Limited | Private company limited by shares | Live |
| Mysterious Solutions Limited | Private company limited by shares | Live |
| WORLD MYSTERIOUS ZHEN-DAO DEVELOPMENT LIMITED | Private company limited by shares | Dissolved |
| MYSTERIUM COMPANY LIMITED | Private company limited by shares | Live |
| 18 Mystery Limited | Private company limited by shares | Live |
| Mystery Limited | Private company limited by shares | Live |
| C.T MYSTERY LIMITED | Private company limited by shares | Live |
| About Mystery Company Limited | | Live |
| Asia Mystery Research Limited | Private company limited by shares | Live |