| SKYRAY INSTRUMENT CO., LIMITED | Private company limited by shares | Live |
| SKYRAY INSTRUMENT (HONGKONG) CO., LIMITED | Private company limited by shares | Live |
| HK SKYRAY ONE-STOP INSTRUMENT CO., LIMITED | Private company limited by shares | Live |
| SKYWORTH INSTRUMENT LIMITED | Private company limited by shares | Dissolved |
| SOGO INSTRUMENT LIMITED | | Live |
| SOLUTION INSTRUMENT LIMITED | Private company limited by shares | Live |
| GENERAL INSTRUMENT SOUTHEAST ASIA LIMITED | Private company limited by shares | Dissolved |
| SPAI INSTRUMENT (HONGKONG) TECHNOLOGY CO., LIMITED | Private company limited by shares | Live |
| STAR INSTRUMENT COMPANY LIMITED | Private company limited by shares | Live |
| STARDAM INSTRUMENT SERVICE LIMITED | Private company limited by shares | Live |
| SUNBIRD INSTRUMENT LIMITED | Private company limited by shares | Live |
| SUNCARE MEDICAL INSTRUMENT LIMITED | Private company limited by shares | Live |
| Super Instrument Tech Limited | Private company limited by shares | Live |
| P&H SURGICAL INSTRUMENT LIMITED | Private company limited by shares | Live |
| Leo Survey Instrument Co., Limited | Private company limited by shares | Live |
| SYNAPSE INSTRUMENT CO. LIMITED | Private company limited by shares | Live |
| SYNAPSE INSTRUMENT (CHINA) CO. LIMITED | Private company limited by shares | Live |
| TAIWAN FEIBANG INSTRUMENT GROUP LIMITED | Private company limited by shares | Dissolved |
| TAIWAN LEGAO PRECISION INSTRUMENT HOLDING LIMITED | Private company limited by shares | Dissolved |
| TAIWAN LIXING PRECISION INSTRUMENT HOLDING LIMITED | Private company limited by shares | Live |
| TAIWAN ZHONGCE PRECISION INSTRUMENT TECHNOLOGY LIMITED | Private company limited by shares | Live |
| TAYLOR INSTRUMENT COMPANIES ORIENT LIMITED | Private company limited by shares | Dissolved |
| TEAMWALL INSTRUMENT (HK) CO., LIMITED | Private company limited by shares | Live |
| M TECH INSTRUMENT LIMITED | Private company limited by shares | Dissolved |
| INSTRUMENT TECH COMPANY LIMITED | | Live |
| PACIFIC GROW TECHNOLOGIES INSTRUMENT LIMITED | Private company limited by shares | Live |
| TK INSTRUMENT TECHNOLOGY LIMITED | Private company limited by shares | Live |
| J&R Instrument Technology Limited | Private company limited by shares | Live |
| ASIA TECHNOLOGY & INSTRUMENT LIMITED | Private company limited by shares | Live |
| D&C Instrument Technology Co., Limited | Private company limited by shares | Live |
| H&J INSTRUMENT TECHNOLOGY CO., LIMITED | Private company limited by shares | Live |
| Excellent Instrument Technology Limited | Private company limited by shares | Live |
| Top Grand Instrument Technology Limited | Private company limited by shares | Live |
| Heyday Instrument Technology Limited | Private company limited by shares | Live |
| JIA FU BAO YI INSTRUMENT NETWORK TECHNOLOGY LIMITED | Private company limited by shares | Live |
| Precision Instrument Technology Co., Limited | Private company limited by shares | Live |
| DELTA INSTRUMENT TECHNOLOGY PRIVATE COMPANY LIMITED | Private company limited by shares | Live |
| Scientific Imaging And Instrument Technology Co., Limited | Private company limited by shares | Live |
| SUNNYWAY INSTRUMENT TECHNOLOGY (HK) LIMITED | Private company limited by shares | Live |
| Tesient Instrument Limited | Private company limited by shares | Live |
| LAIZHOU LAIHUA TESTING INSTRUMENT LIMITED | Private company limited by shares | Live |
| Zhilitong Testing Instrument (H.K.) Company Limited | Private company limited by shares | Live |
| TETOG Musical Instrument Co., Limited | Private company limited by shares | Live |
| Thermo Instrument (HongKong) Co., Limited | Private company limited by shares | Live |
| THERMO INSTRUMENT SYSTEMS (F.E.) LIMITED | Private company limited by shares | Dissolved |
| TianXin Instrument Limited | Private company limited by shares | Live |
| TIMELESS INSTRUMENT LIMITED | Private company limited by shares | Live |
| New times instrument Limited | Private company limited by shares | Live |
| CASLO MUSICAL INSTRUMENT TRADING COMPANY LIMITED | Private company limited by shares | Dissolved |
| MINGYOU INSTRUMENT TRADING LIMITED | Private company limited by shares | Live |
| QUANTA INSTRUMENT TRADING CO., LIMITED | Private company limited by shares | Live |
| J.T SCIENTIFIC & INSTRUMENT INT'L TRADING LIMITED | Private company limited by shares | Live |
| SHINY INSTRUMENT INTERNATIONAL TRADING CO., LIMITED | Private company limited by shares | Live |
| Sucine Instrument Trading Limited | Private company limited by shares | Live |
| Win Team Instrument Trading Company Limited | Private company limited by shares | Live |
| TRILLION GOLD S&E INSTRUMENT CO., LIMITED | Private company limited by shares | Live |
| TRIO MUSICAL INSTRUMENT CO., LIMITED | Private company limited by shares | Dissolved |
| TRULY INSTRUMENT LIMITED | Private company limited by shares | Live |
| GERMANY TUGENDE INSTRUMENT GROUP LIMITED | Private company limited by shares | Live |
| UNION-TECH INSTRUMENT (ASIA) LIMITED | Private company limited by shares | Live |
| UNITED INSTRUMENT (HK) LIMITED | Private company limited by shares | Dissolved |
| UNIVERSAL INSTRUMENT COMPANY LIMITED | Private company limited by shares | Dissolved |
| UNIVERSAL AUTO-CONTROL INSTRUMENT (H.K.) COMPANY LIMITED | Private company limited by shares | Dissolved |
| UNIVERSAL OPTICAL INSTRUMENT CO, LIMITED | Private company limited by shares | Live |
| UNIVERSAL SCIENTIFIC INSTRUMENT LIMITED | Private company limited by shares | Dissolved |
| KEPU INSTRUMENT VALVE CO., LIMITED | Private company limited by shares | Live |
| VEECO INSTRUMENT HK CO., LIMITED | Private company limited by shares | Live |
| New Vision Instrument Company Limited | Private company limited by shares | Live |
| VIVALS MUSICAL INSTRUMENT COMPANY LIMITED | Private company limited by shares | Live |
| Vteke Instrument Co., Limited | Private company limited by shares | Live |
| FANDA WEIGHING INSTRUMENT CO., LIMITED | Private company limited by shares | Live |
| WELFARE INSTRUMENT COMPANY LIMITED | Private company limited by shares | Live |
| WILSON MARINE INSTRUMENT CO., LIMITED | | Live |
| WILSON OPTICAL & INSTRUMENT CO. LIMITED | Private company limited by shares | Dissolved |
| Wisdom Instrument Limited | Private company limited by shares | Dissolved |
| GRAND WOOD ARTIST INSTRUMENT MANUFACTURING LIMITED | Private company limited by shares | Dissolved |
| XIANRUI INSTRUMENT LIMITED | Private company limited by shares | Dissolved |
| Xinfeida Instrument (H.K.) Limited | Private company limited by shares | Live |
| Xinkaifeng Precision Instrument Co., Limited | Private company limited by shares | Live |
| XINLONG LEVEL INSTRUMENT CO., LIMITED | Private company limited by shares | Live |
| NINGBO YAKI OPTICAL INSTRUMENT CO., LIMITED | Private company limited by shares | Live |
| YAMADA INSTRUMENT LIMITED | Private company limited by shares | Dissolved |
| YU YANG SCIENTIFIC INSTRUMENT CO., LIMITED | Private company limited by shares | Live |
| YANION HI-TECH INSTRUMENT (HK) CO. LIMITED | Private company limited by shares | Dissolved |
| Yifeng Instrument Accessories Hong Kong Limited | Private company limited by shares | Live |
| HK YIHE INSTRUMENT CO., LIMITED | Private company limited by shares | Live |
| YIMI CARE INSTRUMENT LIMITED | Private company limited by shares | Live |
| YINENG HI-TECH INSTRUMENT COMPANY LIMITED | Private company limited by shares | Live |
| Ying Ke Instrument (Hongkong) Technology Co., Limited | Private company limited by shares | Live |
| YI'OU MEDICAL INSTRUMENT (HK) LIMITED | Private company limited by shares | Live |
| YIWU TIANYING OPTICAL INSTRUMENT CO., LIMITED | Private company limited by shares | Live |
| HK YONGRUN INSTRUMENT TECHNOLOGY CO., LIMITED | Private company limited by shares | Live |
| YORK INSTRUMENT LIMITED | Private company limited by shares | Live |
| YUEQING NEW ORIENTAL INSTRUMENT CO., LIMITED | Private company limited by shares | Live |
| ZHAO XIN INSTRUMENT (HK) LIMITED | Private company limited by shares | Live |
| ZHENG HANG INSTRUMENT (HONGKONG) LIMITED | Private company limited by shares | Live |
| ZHICHENG INSTRUMENT LIMITED | Private company limited by shares | Live |
| ZISICO LED INSTRUMENT LIMITED | Private company limited by shares | Live |
| CHINESE YOUTH NATIONAL INSTRUMENTAL MUSIC ASSOCIATION LIMITED | Private company limited by shares | Live |
| HONG KONG FASTONE INSTRUMENTAL EQUIPMENT COMPANY LIMITED | Private company limited by shares | Dissolved |