| QUIN FAT COMPANY LIMITED | Private company limited by shares | Live |
| Carl & Quin Company Limited | | Live |
| QUIN BEAUTY CENTER LIMITED | Private company limited by shares | Dissolved |
| Lora Quin Limited | Private company limited by shares | Live |
| QUINALIN INVESTMENTS LIMITED | Private company limited by shares | Dissolved |
| QUINALLY LIMITED | Private company limited by shares | Dissolved |
| Quinalong Limited | Private company limited by shares | Live |
| QUINANCE STRATEGY LIMITED | Private company limited by shares | Live |
| Quinaray Development Co. Limited | Private company limited by shares | Live |
| QUINART LIMITED | Private company limited by shares | Dissolved |
| Quinary Limited | Private company limited by shares | Live |
| QUINBELLA LIMITED | Private company limited by shares | Dissolved |
| QUINBEST COMPANY LIMITED | Private company limited by shares | Live |
| QUINBOR COMPANY LIMITED | Private company limited by shares | Dissolved |
| QUINBY COMPANY LIMITED | Private company limited by shares | Dissolved |
| QUINCA COMPANY LIMITED | Private company limited by shares | Live |
| QUINCASTLE RESOURCES MANAGEMENT LIMITED | Private company limited by shares | Live |
| QUINCE LIMITED | Private company limited by shares | Live |
| Quince Limited | | Live |
| Quince Import And Export Co., Limited | | Live |
| Quince Green Association Limited | Private company limited by shares | Live |
| Quince Growth Co., Limited | Private company limited by shares | Live |
| QUINCE HILL PARTNERS LIMITED | Private company limited by shares | Dissolved |
| QUINCE JEWELRY LIMITED | Private company limited by shares | Live |
| Quince Once HK Limited | Private company limited by shares | Live |
| Quince Solutions Limited | | Live |
| QUINCEY COMPANY LIMITED | Private company limited by shares | Dissolved |
| QUINCEY LIMITED | Private company limited by shares | Dissolved |
| QUINCHANCE LIMITED | Private company limited by shares | Dissolved |
| QUINCO LIMITED | Private company limited by shares | Live |
| Quinco Limited | | Live |
| QUINCUNX LIMITED | Private company limited by shares | Dissolved |
| Quincunx Group Limited | | Live |
| QUINCY LIMITED | Private company limited by shares | Live |
| QUINCY ACME LIMITED | Private company limited by shares | Dissolved |
| QUINCY ENTERPRISE LIMITED | Private company limited by shares | Live |
| QUINCY INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| QUINCY MARK LIMITED | Private company limited by shares | Dissolved |
| QUINCY PLAN LIMITED | Private company limited by shares | Live |
| QUINCYVILLE LIMITED | Private company limited by shares | Dissolved |
| QUINDA INVESTMENT COMPANY, LIMITED | Private company limited by shares | Dissolved |
| QUINDUN LIMITED | Private company limited by shares | Dissolved |
| QUINELLA LIMITED | Private company limited by shares | Live |
| QUINELLA TRADING LIMITED | Private company limited by shares | Dissolved |
| Quineta Trade Limited | | Live |
| QUINETTE COMPANY LIMITED | Private company limited by shares | Dissolved |
| Quinex Digital Company Limited | Private company limited by shares | Live |
| QUINFAX COMPANY LIMITED | Private company limited by shares | Dissolved |
| QUINFIELD LIMITED | Private company limited by shares | Live |
| QUINFO COMPANY LIMITED | Private company limited by shares | Dissolved |
| QUINFORTUNE COMPANY LIMITED | Private company limited by shares | Live |
| QUINFORTUNE ENTERPRISE LIMITED | Private company limited by shares | Dissolved |
| QUINHAN LIMITED | Private company limited by shares | Live |
| QUINHAN TRADING INVESTMENT LIMITED | Private company limited by shares | Live |
| QUINIC COMPANY LIMITED | Private company limited by shares | Dissolved |
| QUINLAND COMPANY LIMITED | Private company limited by shares | Dissolved |
| QUINLAND PUBLISHING COMPANY LIMITED | Private company limited by shares | Dissolved |
| Hong Kong Quinlee Trading Co., Limited | | Live |
| Quinley Limited | | Live |
| Quinlink Service Limited | Private company limited by shares | Live |
| QUINLIVEN INVESTMENTS LIMITED | Private company limited by shares | Dissolved |
| QUINLOGIC CHINA LIMITED | Private company limited by shares | Dissolved |
| QUINLUCKY DEVELOPMENT LIMITED | Private company limited by shares | Dissolved |
| GERMANY QUINMEI HOLDING LIMITED | Private company limited by shares | Live |
| QUINMETAL MANUFACTORY COMPANY LIMITED | Private company limited by shares | Dissolved |
| QUINMORE COMPANY LIMITED | Private company limited by shares | Dissolved |
| QUINN LIMITED | Private company limited by shares | Live |
| SUN QUINN LIMITED | Private company limited by shares | Live |
| QUEEN'S MARY DORSEY & QUINN LIMITED | Private company limited by shares | Live |
| QUINNE LIMITED | Private company limited by shares | Dissolved |
| QUINNE LIMITED | Private company limited by shares | Dissolved |
| QUINNIPAC COMPANY LIMITED | Private company limited by shares | Dissolved |
| QUINNIX COMPANY LIMITED | Private company limited by shares | Dissolved |
| QUINNSWORTH (H.K.) LIMITED | Private company limited by shares | Dissolved |
| QUINO LIMITED | Private company limited by shares | Dissolved |
| Quinoa Limited | | Live |
| Amazing Quinoa Company Limited | Private company limited by shares | Live |
| QUINOA (HONG KONG) LIMITED | Private company limited by shares | Live |
| Quinoa Investment Limited | Private company limited by shares | Live |
| QUINODA LIMITED | Private company limited by shares | Live |
| QUINOID COMPANY LIMITED | Private company limited by shares | Dissolved |
| QUINONE (CHINA) LIMITED | Private company limited by shares | Dissolved |
| QUINONE KITES INDUSTRIAL COMPANY LIMITED | Private company limited by shares | Live |
| QUINONE (VIETNAM) LIMITED | Private company limited by shares | Dissolved |
| QUINPERT CORPORATION LIMITED | Private company limited by shares | Dissolved |
| QUINPONT LIMITED | Private company limited by shares | Dissolved |
| QUINQUE ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| QUINQUINA TRADING & INVESTMENT COMPANY LIMITED | Private company limited by shares | Dissolved |
| QUINSAN COMPANY LIMITED -THE- | Private company limited by shares | Dissolved |
| QUINSCOT ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| QUINSEC ASSOCIATES TRADING LIMITED | Private company limited by shares | Dissolved |
| QUINSEC CHEMPLAS (HK) LIMITED | Private company limited by shares | Dissolved |
| Quinsert Limited | | Live |
| Quinsey Company Limited | Private company limited by shares | Live |
| Quinsic Limited | | Live |
| QUINSKY COMPANY LIMITED | Private company limited by shares | Dissolved |
| QUINSOLAR COMPANY LIMITED | Private company limited by shares | Dissolved |
| QUINSPUR COMPANY LIMITED | Private company limited by shares | Dissolved |
| QUINT LIMITED | Private company limited by shares | Dissolved |
| QUINT LIMITED | Private company limited by shares | Dissolved |