| Altira Engineering Company Limited | Private company limited by shares | Live |
| MODERN ENERTECH GROUP LIMITED | Private company limited by shares | Dissolved |
| IES Engineering (Hong Kong) Limited | Private company limited by shares | Live |
| SHENG TONG OCEAN ENGINEERING LIMITED | Private company limited by shares | Live |
| Wing San Engineering Limited | Private company limited by shares | Dissolved |
| New Electric Engineering Co., Limited | Private company limited by shares | Live |
| HOI YUEN ENGINEERING LIMITED | Private company limited by shares | Live |
| GE SHI LE ENVIRONMENTAL PROTECTION TECHNOLOGY CO., LIMITED | Private company limited by shares | Live |
| MAN YIP ENVIRONMENT LIMITED | Private company limited by shares | Live |
| ENJOY SKY CO., LIMITED | Private company limited by shares | Live |
| MAN MING ENGINEERING & LICENCE CONSULTANCY LIMITED | Private company limited by shares | Live |
| RedDay Entertainment Limited | Private company limited by shares | Live |
| ADVANCED ENGINEERING RESEARCH LIMITED | Private company limited by shares | Live |
| Cambridge Environmental Solutions Limited | Private company limited by shares | Live |
| SUNRISE ENGINEERING (HVAC) LIMITED | Private company limited by shares | Live |
| Ocean Mile Energy Engineering Service Limited | Private company limited by shares | Live |
| ISC ENTERPRISES LIMITED | Private company limited by shares | Live |
| HKrime Environment Energy System Limited | Private company limited by shares | Live |
| Asia Environment Protection Holding Co., Limited | Private company limited by shares | Live |
| Swift Software Engineering and Consultancy Limited | Private company limited by shares | Live |
| Y&F ENGINEERING LIMITED | Private company limited by shares | Live |
| GUANGXIN JUNDA ENT. CONSULTANCY LIMITED | Private company limited by shares | Live |
| Everming Solar Energy Limited | Private company limited by shares | Live |
| ENDCO LIMITED | Private company limited by shares | Live |
| Winning Engineering Limited | Private company limited by shares | Live |
| SERAPHIC ENERGY LIMITED | Private company limited by shares | Live |
| JIAXIN ENTERPRISE LIMITED | Private company limited by shares | Live |
| ENINE GROUP CO., LIMITED | Private company limited by shares | Live |
| DON ENGINEERING LIMITED | Private company limited by shares | Live |
| HAOXIN ENTERPRISES COMPANY LIMITED | Private company limited by shares | Live |
| JINGHUI GIFT ENTERPRISE CO., LIMITED | Private company limited by shares | Live |
| NIU ENTERPRISE LIMITED | Private company limited by shares | Live |
| SICURA ENERGY LIMITED | Private company limited by shares | Live |
| Imagine Enterprise Limited | Private company limited by shares | Live |
| HAO YING ENERGY CO., LIMITED | Private company limited by shares | Live |
| PEA SHINN ENGINEERING CO., LIMITED | Private company limited by shares | Dissolved |
| ENTIRETEC ASIA PACIFIC LIMITED | Private company limited by shares | Live |
| HTV ENTERTAINMENT LIMITED | Private company limited by shares | Live |
| VP ENTERPRISES LIMITED | Private company limited by shares | Live |
| ENERGY & MINING (GROUP) LIMITED | Private company limited by shares | Live |
| CHI HIN ENGINEERING LIMITED | Private company limited by shares | Live |
| ENNVE LIMITED | Private company limited by shares | Live |
| Jeff Engineering Service CO., Limited | Private company limited by shares | Live |
| JUN SUN ENGINEERING COMPANY LIMITED | Private company limited by shares | Live |
| TAK LOK ENGINEERING LIMITED | Private company limited by shares | Live |
| CMV ENTERPRISE COMPANY LIMITED | Private company limited by shares | Live |
| Nissi Engineering Company Limited | Private company limited by shares | Live |
| TMT ENGINEERING LIMITED | Private company limited by shares | Live |
| CHI PO ENTERPRISE LIMITED | Private company limited by shares | Live |
| Lafto Engineering Limited | Private company limited by shares | Live |
| HONGKONG NEW ENGLAND MEDICAL INVESTMENT GROUP CO., LIMITED | Private company limited by shares | Live |
| ENIORE LIMITED | Private company limited by shares | Live |
| Clean Environment (Hong Kong) Co., Limited | Private company limited by shares | Live |
| AMIABLE ENGINEERING LIMITED | Private company limited by shares | Live |
| PAO RUN ENTERPRISES COMPANY LIMITED | Private company limited by shares | Live |
| FU MING ENGINEERING LIMITED | Private company limited by shares | Live |
| CHOW LEUNG ENGINEERING LIMITED | Private company limited by shares | Live |
| E. I. ENGINEERING LIMITED | Private company limited by shares | Live |
| JP ENGINEERING LIMITED | Private company limited by shares | Live |
| DRAGON LEADER ENTERPRISES LIMITED | Private company limited by shares | Live |
| NovaWell Engineering Limited | Private company limited by shares | Live |
| ZENF ENTERPRISE LIMITED | Private company limited by shares | Live |
| CHINA FAREAST ENERGY LIMITED | Private company limited by shares | Live |
| BENXIANG GROUP (HK) ENVIRONMENT TECHNOLOGY LIMITED | Private company limited by shares | Live |
| LONG BEST CONSTRUCTION ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| XI HE ENTERPRISE LIMITED | Private company limited by shares | Live |
| KAY LONG E&M ENGINEERING LIMITED | Private company limited by shares | Live |
| SUNSET GLOW ELDER ENTERPRISES ASIA-PACIFIC FUNDATION LIMITED | Private company limited by shares | Live |
| POOL ENGINEERING LIMITED | Private company limited by shares | Live |
| SAM KEE CONSTRUCTION ENGINEERING LIMITED | Private company limited by shares | Live |
| JN MACHINERY (PARTS) ENGINEERING CO., LIMITED | Private company limited by shares | Dissolved |
| EASTERN RESOURCES ENTERPRISE LIMITED | Private company limited by shares | Live |
| Encorp Limited | Private company limited by shares | Live |
| Yuk Hing Engineering Limited | Private company limited by shares | Live |
| WSS Engineering Systems Limited | Private company limited by shares | Live |
| PACIFIC OIL AND ENERGY LIMITED | Private company limited by shares | Live |
| KEK KEE TRANSPORTATION ENGINEERING LIMITED | Private company limited by shares | Live |
| Ensenda Technology Limited | Private company limited by shares | Live |
| Chaffee Enterprise Co., Limited | Private company limited by shares | Live |
| NJU Environmental Investment (HK) Corporation Limited | Private company limited by shares | Live |
| FUTURE FIGHT ENGINEERING LIMITED | Private company limited by shares | Live |
| Shentou Enterprise Limited | Private company limited by shares | Live |
| WAI LIK ENGINEERING COMPANY LIMITED | Private company limited by shares | Live |
| New Enjoyment Group Co., Limited | Private company limited by shares | Dissolved |
| LONGO ENGINEERING LIMITED | Private company limited by shares | Live |
| DCE DELTA CABLE ENGINEERING LIMITED | Private company limited by shares | Live |
| MANCHUN ELECTRICAL ENGINEERING LIMITED | Private company limited by shares | Live |
| EcoLife & Energy Limited | Private company limited by shares | Live |
| ENAR INTERNATIONAL GROUP CO., LIMITED | Private company limited by shares | Live |
| ALLIED BEST ENGINEERING LIMITED | Private company limited by shares | Live |
| CHAMP SUCCESS ENGINEERING LIMITED | Private company limited by shares | Live |
| EASY SUCCESS ENGINEERING LIMITED | Private company limited by shares | Live |
| YWF ENGINEERING LIMITED | Private company limited by shares | Live |
| A&B Enterprises Limited | Private company limited by shares | Live |
| LA VARIETA ENTERPRISE CO., LIMITED | Private company limited by shares | Live |
| ENRICH STUDIO LIMITED | Private company limited by shares | Live |
| TOP VAST ENGINEERING LIMITED | Private company limited by shares | Live |
| SHEEN TIME ENTERPRISE LIMITED | Private company limited by shares | Live |
| SHENZHEN FAR EAST OIL DRILLING ENGINEERING LIMITED | Private company limited by shares | Live |
| Galaxy Energy Limited | Private company limited by shares | Live |