| QUANTIS SOLAR LIMITED | Private company limited by shares | Live |
| Quantitative Limited | Private company limited by shares | Live |
| QUANTITATIVE ACCOUNTING LIMITED | Private company limited by shares | Live |
| AVANT QUANTITATIVE RESEARCH LIMITED | Private company limited by shares | Live |
| China Quantitative Deal Holding Limited | Private company limited by shares | Live |
| CHINA QUANTITATIVE INVESTMENT GROUP LIMITED | Private company limited by shares | Live |
| Quantitative Network Co., Limited | | Live |
| Quantitative Technology College Company Limited | | Live |
| QUANTITATIVE DATA LIMITED | Private company limited by shares | Live |
| Quantitative Financial Engineering Limited | Private company limited by shares | Live |
| Quantitative Fintech Company Limited | Private company limited by shares | Live |
| Gunxue Quantitative International Technology Co., Limited | Private company limited by shares | Live |
| Quantitative Solution Hong Kong Limited | Private company limited by shares | Live |
| QUANTITATIVE INVESTMENT LIMITED | Private company limited by shares | Live |
| Quantitative observer Limited | Private company limited by shares | Live |
| Pandtong Quantitative Research Limited | Private company limited by shares | Live |
| Sailor Quantitative Investment Management Co., Limited | Private company limited by shares | Live |
| QUANTITATIVE SOCIETY LIMITED | Private company limited by shares | Dissolved |
| QUANTITATIVE SOLUTIONS LIMITED | Private company limited by shares | Dissolved |
| Quantitative Studio Limited | Private company limited by shares | Live |
| QUANTITATIVE TECHNOLOGIES LIMITED | Private company limited by shares | Live |
| GLOBAL QUANTITATIVE TRADING TECHNOLOGIES LIMITED | Private company limited by shares | Live |
| HK Ant quantitative Technology Technology Limited | | Live |
| OX Quantitative Technology Co., Limited | | Live |
| QUANTITATIVE TRADING COMPANY LIMITED | Private company limited by shares | Dissolved |
| GREATER BAY AREA QUANTITATIVE TRADING ASSOCIATION LIMITED | | Live |
| QuantEye Quantitative Trading Limited | | Live |
| Quantitiv Limited | Private company limited by shares | Live |
| Quantitools Limited | Private company limited by shares | Live |
| QUANTITOWN LIMITED | Private company limited by shares | Dissolved |
| QUANTIUM DEVELOPMENTS LIMITED | Private company limited by shares | Dissolved |
| QUANTIUM INVESTMENTS LIMITED | Private company limited by shares | Dissolved |
| Quantivemr Limited | Private company limited by shares | Live |
| SIMONS QUANTIZATION TECHNOLOGY COMPANY LIMITED | Private company limited by shares | Live |
| SeanFriends Quantization Trading Limited | Private company limited by shares | Live |
| QUANTIZE LIMITED | Private company limited by shares | Live |
| QUANTLIGHT INVESTMENT LIMITED | Private company limited by shares | Live |
| Quantlink Investment Service Company Limited | Private company limited by shares | Live |
| QUANTLINKER COMPANY LIMITED | | Live |
| Quantlux Management Limited | Private company limited by shares | Live |
| QUANTO TECH LIMITED | Private company limited by shares | Dissolved |
| QUANTOCK LIMITED | Private company limited by shares | Dissolved |
| HONGKONG QUANTONG SANITARY WARES INDUSTRY CO., LIMITED | Private company limited by shares | Dissolved |
| QUANTONG INT'L CO., LIMITED | Private company limited by shares | Live |
| QUANTONG MIRACLE CO., LIMITED | Private company limited by shares | Live |
| FOSHAN QUANTONG IMP & EXPORT CO., LIMITED | Private company limited by shares | Live |
| QUANTONG INT'L FREIGHT FORWARDERS (HK) LIMITED | Private company limited by shares | Live |
| QUANTONG GROUP LIMITED | Private company limited by shares | Dissolved |
| HK QUANTONG INVESTMENT HOLDING GROUP LIMITED | Private company limited by shares | Dissolved |
| Quantong International Trading (Hong Kong) Limited | | Live |
| QUANTONG IMPORT&EXPORT (HONGKONG) LIMITED | Private company limited by shares | Dissolved |
| QUANTONG INDUSTRY (HK) LIMITED | Private company limited by shares | Live |
| QuanTong International Limited | Private company limited by shares | Dissolved |
| QUANTONG TRADING CO., LIMITED | Private company limited by shares | Live |
| QUANTOP TECHNOLOGY LIMITED | Private company limited by shares | Live |
| Quantor Research Limited | Private company limited by shares | Dissolved |
| QUANTOR TECHNOLOGY CO. LIMITED | Private company limited by shares | Dissolved |
| QUANTOSPHERE LIMITED | Private company limited by shares | Live |
| QuantPipeline Limited | Private company limited by shares | Live |
| Quantr Limited | Private company limited by shares | Live |
| QUANTRACT LIMITED | Private company limited by shares | Live |
| QuantRaiser Limited | | Live |
| QUANTRAN SYSTEMS LIMITED | Private company limited by shares | Live |
| QuantRatio Limited | Private company limited by shares | Live |
| QuantRes Finance Limited | Private company limited by shares | Live |
| QUANTREUM RESOURCES LIMITED | Private company limited by shares | Live |
| QUANTREX CAPITAL LIMITED | Private company limited by shares | Live |
| QUANTRIX LIMITED | Private company limited by shares | Dissolved |
| QUANTRO INVESTMENT COMPANY LIMITED | Private company limited by shares | Dissolved |
| QUANTRONICS AUDIO LIMITED | Private company limited by shares | Dissolved |
| QUANTRONICS MANUFACTURING (H.K.)LIMITED | Private company limited by shares | Dissolved |
| QUANTRONICS PHOTOGRAPHIC LIMITED | Private company limited by shares | Dissolved |
| QUANTRONICS TELECOMMUNICATIONS LIMITED | Private company limited by shares | Dissolved |
| QUANTS LIMITED | Private company limited by shares | Live |
| Quantsquote Limited | Private company limited by shares | Live |
| QUANTSTREET LIMITED | Private company limited by shares | Dissolved |
| AimProud QuantTech Limited | Private company limited by shares | Live |
| Brnovation QuantTech Limited | Private company limited by shares | Live |
| QUANTUM LIMITED | Private company limited by shares | Live |
| QUANTUM FP LIMITED | Private company limited by shares | Dissolved |
| Quantum XXL Limited | Private company limited by shares | Dissolved |
| QUANTUM EVM LIMITED | Private company limited by shares | Live |
| Quantum GBL HK Limited | Private company limited by shares | Live |
| QUANTUM 99 LIMITED | Private company limited by shares | Live |
| Quantum EP Limited | Private company limited by shares | Live |
| Quantum Pro Company Limited | Private company limited by shares | Live |
| HK Quantum Age Company Limited | Private company limited by shares | Live |
| Quantum VLO Limited | Private company limited by shares | Live |
| One Quantum Limited | | Live |
| Quantum K Limited | | Live |
| QUANTUM NET LIMITED | | Live |
| Quantum Academy Limited | Private company limited by shares | Dissolved |
| CHINA QUANTUM ACADEMY SCIENCES CO., LIMITED | Private company limited by shares | Live |
| QUANTUM INTELLECT ACADEMY LIMITED | Private company limited by shares | Live |
| Quantum Leadership Research Academy Limited | Private company limited by shares | Live |
| China Quantum Technologies Academy Limited | Private company limited by shares | Live |
| Quantum Advisors Limited | | Live |
| QUANTUM AESTHETICS LIMITED | | Live |
| QUANTUM AGRICULTURAL TECHNOLOGY LIMITED | Private company limited by shares | Dissolved |
| China Quantum Agro-Produce Company Limited | Private company limited by shares | Live |