| B.P. (Construction & Engineering) Company Limited | Private company limited by shares | Live |
| AHT Energy Service Co., Limited | Private company limited by shares | Live |
| BORUI MARINE ENGINEERING LIMITED | Private company limited by shares | Live |
| GALAND ENGINEERING COMPANY LIMITED | Private company limited by shares | Live |
| Kilo Victor Enterprises Limited | Private company limited by shares | Dissolved |
| V&T ENGINEERING CO. LIMITED | Private company limited by shares | Live |
| ON KUNG ENGINEERING COMPANY LIMITED | Private company limited by shares | Live |
| JORSUN ENVIRONMENT LIMITED | Private company limited by shares | Live |
| OBT ENGINEERING LIMITED | Private company limited by shares | Live |
| WING KEI MECHANICAL ENGINEERING LIMITED | Private company limited by shares | Live |
| WIT ENGINEERING COMPANY LIMITED | Private company limited by shares | Live |
| ENDABA LIMITED | Private company limited by shares | Live |
| DONGJIE ENVIRONMENTAL TECHNOLOGY CO., LIMITED | Private company limited by shares | Live |
| ENERGY-S LIMITED | Private company limited by shares | Live |
| KWUN TAN ENGINEERING LIMITED | Private company limited by shares | Live |
| PETROLINK ENERGY LIMITED | Private company limited by shares | Live |
| ENLY INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| HONG KONG ENVIRONMENTAL CENTER LIMITED | Private company limited by shares | Live |
| ENERGY & MINERALS INVESTMENT MANAGEMENT COMPANY LIMITED | Private company limited by shares | Live |
| CONTAINER ENGINEERING LIMITED | Private company limited by shares | Live |
| CHINA ENVIRONMENTAL ENERGY GROUP CO., LIMITED | Private company limited by shares | Live |
| GOLDMEN ENGINEERING COMPANY LIMITED | Private company limited by shares | Live |
| SHANGHAI ENERSER INTERNATIONAL CO., LIMITED | Private company limited by shares | Live |
| CHINA ENVIRONMENT PROTECTION INVERSTMENT HOLDING LIMITED | Private company limited by shares | Live |
| ENERGY CYCLE CO., LIMITED | Private company limited by shares | Dissolved |
| TIME FORTUNE ENTERPRISES LIMITED | Private company limited by shares | Live |
| Cooltale Enterprises Limited | Private company limited by shares | Live |
| MEANINGFUL ENGINEERING COMPANY LIMITED | Private company limited by shares | Live |
| ENERGY THERAPY LIMITED | Private company limited by shares | Live |
| GLORY ENVIRONMENTAL PROTECTION (HONG KONG) LIMITED | Private company limited by shares | Live |
| WAN KOON ENGINEERING LIMITED | Private company limited by shares | Live |
| Vinculum Enterprises Limited | Private company limited by shares | Live |
| WAN KIN ENGINEERING LIMITED | Private company limited by shares | Live |
| ARMIDALE ENTERPRISES LIMITED | Private company limited by shares | Live |
| HOP CHI ENGINEERING COMPANY LIMITED | Private company limited by shares | Live |
| Godfrey Entertainment Co., Limited | Private company limited by shares | Live |
| U Entertainment Limited | Private company limited by shares | Live |
| Konner Engineering Company Limited | Private company limited by shares | Live |
| WANG RUI ELECTRICAL AND MECHANICAL ENGINEERING COMPANY LIMITED | Private company limited by shares | Live |
| PG Engineering Limited | Private company limited by shares | Live |
| M&K Enterprise Limited | Private company limited by shares | Live |
| Hongkong Engpai Industrial Limited | Private company limited by shares | Live |
| ENJOY PARTY CATERING SERVICES LIMITED | Private company limited by shares | Live |
| HK HUI-MIN ENVIRONMENTAL TECH CORP. LIMITED | Private company limited by shares | Live |
| Endrime Limited | Private company limited by shares | Live |
| TRUE POK ENGINEERING LIMITED | Private company limited by shares | Live |
| MEISZE AIR-CONDITION ELECTRICAL ENGINEER LIMITED | Private company limited by shares | Live |
| ENJOY INTERNATIONAL TRADING (HK) GROUP CO., LIMITED | Private company limited by shares | Live |
| RED SEA ENTERPRISE LIMITED -THE- | Private company limited by shares | Dissolved |
| Trinity Engineering Company Limited | Private company limited by shares | Live |
| SST ENGINEERING COMPANY LIMITED | Private company limited by shares | Live |
| NEW TOP ENGINEERING LIMITED | Private company limited by shares | Live |
| KESIEY ENGINEERING CO LIMITED | Private company limited by shares | Live |
| ALL WIN MECHANICAL ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| Otter Engineering Limited | Private company limited by shares | Live |
| ZMARINE SHIPPING ENGINEERING CO., LIMITED | Private company limited by shares | Live |
| ENERGY CROP CIRCLE LIMITED | Private company limited by shares | Live |
| New Wisdom Enterprise Limited | Private company limited by shares | Live |
| ZIFENG ENTERPRISE CO., LIMITED | Private company limited by shares | Live |
| WING LEE ENGINEERING & DESIGN LIMITED | Private company limited by shares | Live |
| WAH PO ENGINEERING LIMITED | Private company limited by shares | Live |
| YUE TUNG ENGINEERING LIMITED | Private company limited by shares | Live |
| Loungy Engineering Company Limited | Private company limited by shares | Live |
| NEW TRIUMPHAL ENGINEERING LIMITED | Private company limited by shares | Live |
| DAP ENTERPRISE LIMITED | Private company limited by shares | Live |
| Daman Technology and Engineering Limited | Private company limited by shares | Live |
| NEKCOM ENTERTAINMENT LIMITED | Private company limited by shares | Dissolved |
| HK AURORA ENVIRONMENTAL LIMITED | Private company limited by shares | Live |
| MAN MING ELECTRONIC ENGINEERING CO. LIMITED | Private company limited by shares | Live |
| TIN CHU ENGINEERING LIMITED | Private company limited by shares | Live |
| ND ENTERPRISES LIMITED | Private company limited by shares | Live |
| SEN ENVIRONNEMENT INTERNATIONAL LIMITED | Private company limited by shares | Live |
| ARXGLOBAL ENGINEERING LIMITED | Private company limited by shares | Live |
| BRICTEC ENGINEERING CO., LIMITED | Private company limited by shares | Live |
| IE LED ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| Hong Kong Association of Entrepreneurs Limited | Private company limited by shares | Dissolved |
| VINLY ENTERPRISE LIMITED | Private company limited by shares | Live |
| HO YIP ENGINEERING COMPANY LIMITED | Private company limited by shares | Live |
| HK BENQIANG ENERGY INVESTMENT CO., LIMITED | Private company limited by shares | Live |
| J T ENGINEERING LIMITED | Private company limited by shares | Live |
| Daikin Engineering & Transportation Limited | Private company limited by shares | Live |
| TOP ONE ENGINEERING GROUP COMPANY LIMITED | Private company limited by shares | Live |
| ENSURE ON LIMITED | Private company limited by shares | Live |
| ENERGOINVEST LIMITED | Private company limited by shares | Live |
| Cool Jim Production Engineer Limited | Private company limited by shares | Live |
| YLC ENTERPRISE LIMITED | Private company limited by shares | Live |
| YU TAI FU ENTERPRISES CO LIMITED | Private company limited by shares | Live |
| RED SUN ENTERPRISES COMPANY LIMITED | Private company limited by shares | Live |
| BHC Enterprise Limited | Private company limited by shares | Live |
| PCG Entertainment Plc Limited | Private company limited by shares | Dissolved |
| P&D ENTERPRISE LIMITED | Private company limited by shares | Live |
| FUHO ENGINEERING LIMITED | Private company limited by shares | Live |
| HK ENJOY HEALTH GROUP CONSULTING MANAGEMENT LIMITED | Private company limited by shares | Live |
| YOK FAT ENTERPRISE COMPANY LIMITED | Private company limited by shares | Live |
| YUEN KEE HO ENTERPRISES LIMITED | Private company limited by shares | Live |
| MILLION GLORY ENGINEERING LIMITED | Private company limited by shares | Live |
| SKY PACIFIC ENGINEERING LIMITED | Private company limited by shares | Live |
| BBT SCIENTIFIC ENGINEERING LIMITED | Private company limited by shares | Live |
| WONDERFUL ENVIRONMENTAL TECHNOLOGY COMPANY LIMITED | Private company limited by shares | Live |
| SUNRISE TRADE ENTERPRISE LIMITED | Private company limited by shares | Live |