| MONO COMPANY LIMITED | Private company limited by shares | Live |
| Mono Box Limited | Private company limited by shares | Live |
| Mono Red Limited | Private company limited by shares | Live |
| MONO ALLEY LIMITED | Private company limited by shares | Live |
| Mono Asia Company Limited | | Live |
| MONO BEAUTY LIMITED | Private company limited by shares | Live |
| Mono Cloud Limited | Private company limited by shares | Live |
| mono Concept Co., Limited | Private company limited by shares | Live |
| MONO CORP LIMITED | Private company limited by shares | Live |
| Mono Creative Limited | Private company limited by shares | Live |
| Mono Design Limited | Private company limited by shares | Live |
| Mono Eyewear Limited | Private company limited by shares | Live |
| MONO GLORY LIMITED | Private company limited by shares | Dissolved |
| MONO GLORY LIMITED | Private company limited by shares | Dissolved |
| MONO ONE GROUP LIMITED | Private company limited by shares | Live |
| MONO GROUP LIMITED | Private company limited by shares | Live |
| MONO ELECTRICO (H.K.) LIMITED | Private company limited by shares | Dissolved |
| HONG KONG MONO CLOTHING CO., LIMITED | Private company limited by shares | Dissolved |
| Mono Technology Hong Kong Limited | Private company limited by shares | Live |
| MONO INDUSTRIAL CO., LIMITED | Private company limited by shares | Live |
| MONO INTERACTIVE COMPANY LIMITED | Private company limited by shares | Dissolved |
| Mono International Limited | Private company limited by shares | Live |
| Mirai Mono Limited | | Live |
| MONO MULTI PHOTOVOLTAIC SOLAR HONGKONG LIMITED | Private company limited by shares | Live |
| MONO MULTIMEDIA DESIGN LIMITED | Private company limited by shares | Dissolved |
| MONO MULTIMEDIA ENTERPRISE (HK) LIMITED | Private company limited by shares | Dissolved |
| MONO PRODUCTS CO., LIMITED | Private company limited by shares | Live |
| MONO PROJECTS LIMITED | | Live |
| MONO SPACE LIMITED | Private company limited by shares | Dissolved |
| Mono Square Limited | Private company limited by shares | Live |
| MONO STYLE (HK) COMPANY LIMITED | Private company limited by shares | Dissolved |
| Mono Technology Limited | Private company limited by shares | Live |
| Mono Thing Limited | Private company limited by shares | Live |
| ASLAN MONO TRADING CO., LIMITED | | Live |
| MONO WELL LIMITED | Private company limited by shares | Dissolved |
| MONO WINNER LIMITED | Private company limited by shares | Live |
| Mono Yellow Limited | Private company limited by shares | Live |
| MONO74 LIMITED | Private company limited by shares | Live |
| MONOBANO COMPANY LIMITED | Private company limited by shares | Dissolved |
| MONOBLOCC LIMITED | Private company limited by shares | Live |
| MONOC GROUP LIMITED | Private company limited by shares | Live |
| MONOCA LIMITED | Private company limited by shares | Live |
| MONOCEAN COMPANY LIMITED | Private company limited by shares | Dissolved |
| Monoceros Limited | Private company limited by shares | Live |
| Monocerus Consulting Limited | Private company limited by shares | Live |
| MONOCHAMP COMPANY LIMITED | Private company limited by shares | Live |
| MONOCHROME LIMITED | Private company limited by shares | Dissolved |
| Monochrome Coffee Limited | Private company limited by shares | Live |
| Monochrome Group Hong Kong Limited | Private company limited by shares | Live |
| MONOCLE COMPANY LIMITED | Private company limited by shares | Live |
| MonocleCap Limited | Private company limited by shares | Live |
| MONOCON DEVELOPMENT LIMITED | Private company limited by shares | Live |
| MONOCON ELECTRONICS COMPANY LIMITED | Private company limited by shares | Dissolved |
| MONOCON INVESTMENTS LIMITED | Private company limited by shares | Dissolved |
| MONOCON TRADING LIMITED | Private company limited by shares | Dissolved |
| MONOCORD LIMITED | Private company limited by shares | Dissolved |
| MONOCOSMIC LIMITED | Private company limited by shares | Live |
| MONOCOZZI LIMITED | Private company limited by shares | Live |
| MONOCROFT LIMITED | Private company limited by shares | Dissolved |
| MONODALE LIMITED | Private company limited by shares | Dissolved |
| Monodo Design & Contracting Limited | Private company limited by shares | Dissolved |
| MONODONASIA AQUACULTURE LIMITED | Private company limited by shares | Dissolved |
| Monoecom Limited | | Live |
| MONOEXPERT LIMITED | Private company limited by shares | Live |
| MONOFAITH INDUSTRIAL LIMITED | Private company limited by shares | Dissolved |
| MONOFLOW LIMITED | Private company limited by shares | Dissolved |
| MONOGATARI HK CO. LIMITED | Private company limited by shares | Live |
| MONOGATARI Limited | Private company limited by shares | Live |
| Natural Monogatari Limited | | Live |
| MONOGIC LIMITED | Private company limited by shares | Live |
| MONOGOLD LIMITED | Private company limited by shares | Live |
| MONOGRAM COMPANY LIMITED | Private company limited by shares | Dissolved |
| MONOGRAM PRODUCTS (H.K.) LIMITED | Private company limited by shares | Live |
| MONOGRAM PRODUCTS INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| MONOGRAM PACIFIC LIMITED | Private company limited by shares | Dissolved |
| MONOGRAM PLUS PRODUCTIONS LIMITED | Private company limited by shares | Live |
| MONOGRAM TEXTILE LIMITED | Private company limited by shares | Dissolved |
| MONO-GRAPHIC COMPANY LIMITED | Private company limited by shares | Dissolved |
| Monoground Creative Limited | Private company limited by shares | Live |
| MONOID COMPANY LIMITED | Private company limited by shares | Dissolved |
| MONOID PUBLISHING COMPANY LIMITED | Private company limited by shares | Dissolved |
| Monoikos Limited | Private company limited by shares | Live |
| MONOIMPEX LIMITED | Private company limited by shares | Live |
| Monokeros HK Limited | Private company limited by shares | Live |
| Monokini Co., Limited | Private company limited by shares | Live |
| MONOL (FAREAST) OIL LIMITED | Private company limited by shares | Dissolved |
| MONOLEX PENPET FAREAST LIMITED | Private company limited by shares | Dissolved |
| MONOLIFE LIMITED | Private company limited by shares | Dissolved |
| Monoline Limited | | Live |
| Monolink Limited | | Live |
| MONOLISA (ITALY) COMPANY LIMITED | Private company limited by shares | Live |
| MONOLIT LIMITED | Private company limited by shares | Live |
| Monolit Investment Limited | Private company limited by shares | Live |
| MONOLITH 21 LIMITED | Private company limited by shares | Dissolved |
| Monolith Limited | Private company limited by shares | Live |
| Monolith Asia Limited | Private company limited by shares | Live |
| Monolith Capital Limited | | Live |
| Monolith Galaxy Limited | | Live |
| MONOLITH INVESTMENTS LIMITED | Private company limited by shares | Dissolved |
| PACIFIC MONOLITH LIMITED | Private company limited by shares | Dissolved |