| Leto Musical Instrument Company Limited | Private company limited by shares | Live |
| NATIONAL OPTICAL INSTRUMENT SUPPLY LIMITED | Private company limited by shares | Live Commenced dormancy on 05-Oct-2015 |
| NETENT INSTRUMENT LIMITED | Private company limited by shares | Dissolved |
| Neuworks Instrument Limited | Private company limited by shares | Live |
| NICOLET INSTRUMENT (ASIA) LIMITED | Private company limited by shares | Dissolved |
| GERMANY NOCOO ANALYSIS INSTRUMENT TECH LIMITED | Private company limited by shares | Live |
| OBLE MEDICAL INSTRUMENT CO., LIMITED | Private company limited by shares | Live |
| OPTICAL INSTRUMENT COMPANY, LIMITED | Private company limited by shares | Dissolved |
| Nuohai Optical Instrument Equipment (China) Limited | Private company limited by shares | Live |
| New Century Optical Instrument Co., Limited | Private company limited by shares | Live |
| MARLBORON OPTICAL & INSTRUMENT CO., LIMITED | Private company limited by shares | Dissolved |
| GALAXIER OPTICAL INSTRUMENT COMPANY LIMITED | Private company limited by shares | Live |
| KEPLER OPTICAL INSTRUMENT LIMITED | Private company limited by shares | Live |
| LENSER OPTICAL INSTRUMENT LIMITED | Private company limited by shares | Live |
| NANYANG HENGDA OPTICAL INSTRUMENT CO., LIMITED | Private company limited by shares | Live |
| XINXIANG OPTICAL INSTRUMENT COMPANY LIMITED | Private company limited by shares | Live |
| Precision Instrument and Optics Limited | Private company limited by shares | Live |
| Haike Sirui Optoelectrics Instrument Limited | Private company limited by shares | Live |
| Oriental Instrument Co., Limited | | Live |
| ORIENTAL SCIENTIFIC INSTRUMENT CO., LIMITED | Private company limited by shares | Live |
| Padishah Instrument Technology Co., Limited | Private company limited by shares | Live |
| Photoelectric Instrument Co., Limited | Private company limited by shares | Live |
| GERMANY POSLON PHOTOELECTRICITY INSTRUMENT LIMITED | Private company limited by shares | Dissolved |
| CoLand Photography Instrument Limited | Private company limited by shares | Live |
| GERMANY KUPO PIANO INSTRUMENT LIMITED | Private company limited by shares | Live |
| TIMES PIANO INSTRUMENT LIMITED | Private company limited by shares | Dissolved |
| POLYTECH INSTRUMENT LIMITED | Private company limited by shares | Live |
| KEY POWER INSTRUMENT LIMITED | Private company limited by shares | Live |
| NEW C & A PRACTICE INSTRUMENT COMPANY, LIMITED | Private company limited by shares | Live |
| PRECISION INSTRUMENT LIMITED | Private company limited by shares | Dissolved |
| Precision Scientific Instrument Limited | Private company limited by shares | Live |
| WANTONG PRECISION INSTRUMENT LIMITED | Private company limited by shares | Dissolved |
| QUANTA INSTRUMENT CO., LIMITED | Private company limited by shares | Live |
| QUEEN MUSICAL INSTRUMENT CO., LIMITED | Private company limited by shares | Live |
| HK RAMIS MUSICAL INSTRUMENT LIMITED | Private company limited by shares | Live |
| HK RAYTECH INSTRUMENT CO., LIMITED | Private company limited by shares | Dissolved |
| INSTRUMENT RENTALS LIMITED | Private company limited by shares | Dissolved |
| RISING INSTRUMENT CO., LIMITED | Private company limited by shares | Live |
| KAI RONG MUSICAL INSTRUMENT CO., LIMITED | Private company limited by shares | Live |
| RUNHAO MUSICAL INSTRUMENT CO., LIMITED | Private company limited by shares | Live |
| FEE LUN SAFETY INSTRUMENT LIMITED | Private company limited by shares | Dissolved |
| SAISI INSTRUMENT (HONGKONG) LIMITED | Private company limited by shares | Live |
| Sandy Instrument Co. Limited | Private company limited by shares | Live |
| SATIDE MEDICAL INSTRUMENT CO., LIMITED | Private company limited by shares | Live |
| SCIENTECHNIC INSTRUMENT COMPANY LIMITED | Private company limited by shares | Dissolved |
| TD SCIENTIFIC INSTRUMENT LIMITED | Private company limited by shares | Live |
| SCIENTIFIC INSTRUMENT SOFTWARE CORPORATION LIMITED | Private company limited by shares | Live |
| Dingxin Scientific Instrument Limited | Private company limited by shares | Live |
| Elites Scientific Instrument Limited | Private company limited by shares | Live |
| Insmart Scientific Instrument Limited | Private company limited by shares | Live |
| HK Jili Scientific Instrument Company Limited | Private company limited by shares | Live |
| Jingshi Scientific Instrument Limited | Private company limited by shares | Live |
| NOVAE SCIENTIFIC INSTRUMENT COMPANY LIMITED | | Live |
| PACIFIC SCIENTIFIC INSTRUMENT LIMITED | Private company limited by shares | Dissolved |
| SAAK-MAR SCIENTIFIC INSTRUMENT COMPANY LIMITED | Private company limited by shares | Dissolved |
| UNI-ASIA SCIENTIFIC INSTRUMENT COMPANY LIMITED | Private company limited by shares | Live |
| SCI-Lab Instrument International Limited | Private company limited by shares | Live |
| SCOTT INSTRUMENT & EQUIPMENT LIMITED | | Live |
| SEJIN INSTRUMENT HK LIMITED | Private company limited by shares | Dissolved |
| SELECT INSTRUMENT COMPANY LIMITED | Private company limited by shares | Live |
| SEMICONTEC INSTRUMENT COMPANY LIMITED | Private company limited by shares | Live |
| ANTACT SENSORS INSTRUMENT (HONGKONG) CO., LIMITED | Private company limited by shares | Live |
| Shandong ShanChuan Medical Instrument Co., Limited | Private company limited by shares | Live Commenced dormancy on 24-Nov-2015 |
| SHANDONG FUTURE MEDICAL INSTRUMENT CO., LIMITED | Private company limited by shares | Live |
| SHANGDELI ELECTRONIC INSTRUMENT LIMITED | Private company limited by shares | Live |
| SHANGHAI HUADONG INSTRUMENT CO., LIMITED | Private company limited by shares | Dissolved |
| SHANGHAI HUADONG INSTRUMENT CO., LIMITED | | Live |
| SHANGHAI PEOPLE INSTRUMENT CO., LIMITED | Private company limited by shares | Live |
| SHANGHAI TELMAR INSTRUMENT CO., LIMITED | Private company limited by shares | Live |
| SHANGHAI TRULY INSTRUMENT CO., LIMITED | Private company limited by shares | Live |
| SHANGHAI PEOPLE ELECTRIC POWER INSTRUMENT LIMITED | Private company limited by shares | Live |
| SHANGHAI PEOPLE COMPLETE ELECTRICAL INSTRUMENT LIMITED | Private company limited by shares | Live |
| SHANGHAI PEOPLE ELECTRICAL INSTRUMENT LIMITED | Private company limited by shares | Live |
| SHANGHAI PEOPLE INSTRUMENT ELECTRICAL LIMITED | | Live |
| SHANGHAI PEOPLE GAOKE INSTRUMENT LIMITED | Private company limited by shares | Live |
| SHANGHAI PEOPLE INSTRUMENT HOLDING LIMITED | Private company limited by shares | Live |
| SHANGHAI HUALI INSTRUMENT LIMITED | Private company limited by shares | Live |
| SHANGHAI HUALI INSTRUMENT INSTRUMENTATION LIMITED | Private company limited by shares | Live |
| SHANGHAI PEOPLE INSTRUMENT INSTRUMENTATION LIMITED | Private company limited by shares | Live |
| Shanghai Renmin Intelligent Instrument Co., Limited | | Live |
| SHANGHAI JIANHENG INSTRUMENT LIMITED | Private company limited by shares | Live |
| SHANGHAI KINGDAK SCIENTIFIC INSTRUMENT CO., LIMITED | Private company limited by shares | Live |
| SHANGHAI HUALI INSTRUMENT METER (HONGKONG) LIMITED | Private company limited by shares | Dissolved |
| SHANGHAI SAIBA PRECISION INSTRUMENT LIMITED | Private company limited by shares | Dissolved |
| SHANGHAI RENMINQINGDU INSTRUMENT HK LIMITED | | Live |
| SHANGHAI PEOPLE INSTRUMENT SHARE LIMITED | Private company limited by shares | Live |
| SHANGHAI PEOPLE INSTRUMENT TECHNOLOGY LIMITED | | Live |
| SHANGHAI XINGSHEN INSTRUMENT CO., LIMITED | Private company limited by shares | Live |
| Shangyi (Macao) Instrument Equipment Co., Limited | | Live |
| SILVER INSTRUMENT INTERNATIONAL (ASIA) LIMITED | Private company limited by shares | Live |
| SILVER INSTRUMENT INTERNATIONAL (HK) LIMITED | Private company limited by shares | Live |
| CHINA SINCERE INSTRUMENT LIMITED | Private company limited by shares | Live |
| SINOMACH INSTRUMENT LIMITED | Private company limited by shares | Dissolved |
| SITON INSTRUMENT (HK) CO., LIMITED | Private company limited by shares | Live |
| SKYBIO INSTRUMENT COMPANY LIMITED | Private company limited by shares | Live |
| SKYLINE INSTRUMENT LIMITED | Private company limited by shares | Live |
| Skyline Crest Scientific Instrument Company Limited | Private company limited by shares | Live |
| SKYLUN MEDICAL INSTRUMENT CO., LIMITED | Private company limited by shares | Live |
| SKYRAY INSTRUMENT CO., LIMITED | Private company limited by shares | Dissolved |
| SKYRAY INSTRUMENT CO., LIMITED | Private company limited by shares | Live |