| MAN Technology Environment Company Limited | Private company limited by shares | Dissolved |
| Enerdice Limited | Private company limited by shares | Live |
| BABYLON ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| CBD New Energy Group Limited | Private company limited by shares | Live |
| WEC Environmental Engineering Consultants Limited | Private company limited by shares | Live |
| MANWELL ENGINEERING LIMITED | Private company limited by shares | Live |
| MING SHENG ENTERPRISE LIMITED | Private company limited by shares | Live |
| YUEN HING ENTERPRISE LIMITED | Private company limited by shares | Dissolved |
| ZEE & JUN ENGINEERING COMPANY LIMITED | Private company limited by shares | Dissolved |
| FIGI ENTERPRISE COMPANY LIMITED | Private company limited by shares | Live |
| ALL RIGHTS ENTERTAINMENT LIMITED | Private company limited by shares | Live |
| HO KONG ENGINEERING COMPANY LIMITED | Private company limited by shares | Live |
| HEXIN ENTERPRISE CO., LIMITED | Private company limited by shares | Live |
| SPEED RISE ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| CHUNG TIN ENVIRONMENTAL ENGINEERING LIMITED | Private company limited by shares | Live |
| TRALACO ENGINEERING LIMITED | Private company limited by shares | Live |
| Waterways Engineering & Consultancy Limited | Private company limited by shares | Live |
| LIK KO PURIFICATION ENGINEERING LIMITED | Private company limited by shares | Live |
| D & D ENGINEERING LIMITED | Private company limited by shares | Live |
| BOND WAI AIRCONDITION ENGINEERING CO., LIMITED | Private company limited by shares | Live |
| EnerTech Energy Limited | Private company limited by shares | Dissolved |
| BRISCOLA ENTERPRISE LIMITED | Private company limited by shares | Dissolved |
| CHAMPION WIND ENERGY INVESTMENT AND MANAGEMENT LIMITED | Private company limited by shares | Dissolved |
| AVA Engineering Service Limited | Private company limited by shares | Live |
| ENJOY INFO-TECHNOLOGY CO., LIMITED | Private company limited by shares | Dissolved |
| CREATION TRADING ENGINEERING LIMITED | Private company limited by shares | Live |
| NEW T&M ENGINEERING CO. LIMITED | Private company limited by shares | Dissolved |
| CLK Engineering Global Co. Limited | Private company limited by shares | Live |
| HK HONGJIACHANG ENERGY SOURCES ENVIRONMENT LIMITED | Private company limited by shares | Dissolved |
| OCEAN ENTERPRISES GROUP LIMITED | Private company limited by shares | Dissolved |
| NEW FUTURE ENGINEERING CO., LIMITED | Private company limited by shares | Live |
| EXCELLENT FORTUNE ENTERPRISE LIMITED | Private company limited by shares | Live |
| TOP CONSTRUCTION ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| DIRECT THINK ENGINEERING LIMITED | Private company limited by shares | Live |
| Asia Design & Engineering Limited | Private company limited by shares | Dissolved |
| LT Energy Limited | Private company limited by shares | Live |
| YUK SHU ENGINEERING CO. LIMITED | Private company limited by shares | Dissolved |
| SUNNY CENTURY ENTERPRISES LIMITED | Private company limited by shares | Live |
| AMPLE DRAGON ENTERPRISES LIMITED | Private company limited by shares | Live |
| Luman Environmental Limited | Private company limited by shares | Live |
| Widely Construction & Engineering Limited | Private company limited by shares | Live |
| WELL CENTURY ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| SUN WEALTH CONSTRUCTION ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| FIRST LAND ENTERPRISES LIMITED | Private company limited by shares | Live |
| LONGO ENVIRONTECH (HONG KONG) CO., LIMITED | Private company limited by shares | Live |
| NANOTECH INDUSTRIAL ENGINEERING CO., LIMITED | Private company limited by shares | Live |
| TOP LEAD ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| TOP EASY CONSTRUCTION ENGINEERING LIMITED | Private company limited by shares | Live |
| YAT CHI ENTERPRISE LIMITED | Private company limited by shares | Live |
| BEST VIEW CONSTRUCTION ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| CREATIVE POWER ENGINEERING LIMITED | Private company limited by shares | Live |
| TRUMP CONSTRUCTION ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| PHOTON ENGINEERING LIMITED | Private company limited by shares | Live Commenced dormancy on 27-Jul-2015 |
| API Enterprises Limited | Private company limited by shares | Live |
| HARBOUR GRAND ENGINEERING LIMITED | Private company limited by shares | Live |
| JOY SMART CONSTRUCTION ENGINEERING LIMITED | Private company limited by shares | Live |
| CHU QI RENEWABLE ENERGY LIMITED | Private company limited by shares | Dissolved |
| KEYMART ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| GOLD RICH CONSTRUCTION ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| GRAND ENERGY ENGINEERING LIMITED | Private company limited by shares | Live |
| KINGBURG ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| CHARMING STAR ENTERPRISES LIMITED | Private company limited by shares | Live |
| D & T ENTERPRISES LIMITED | Private company limited by shares | Live |
| WIN YEAR ENGINEERING LIMITED | Private company limited by shares | Live |
| ALLY ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| INNOVATE TECHNOLOGY ENGINEERING COMPANY LIMITED | Private company limited by shares | Dissolved |
| FEAPRO ENGINEERING LIMITED | Private company limited by shares | Live |
| Innovative Energy Group Hong Kong Limited | Private company limited by shares | Dissolved |
| POWER STAR ENGINEERING LIMITED | Private company limited by shares | Live |
| WORLDTRADE CONSTRUCTION ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| CHINA ENGINEERING LIMITED | Private company limited by shares | Live |
| ENERGY TRANSFORMATION LIMITED | Private company limited by shares | Live |
| HAPPY ENERGY LIMITED | Private company limited by shares | Dissolved |
| IMPERIAL ENTERPRISES COMPANY LIMITED | Private company limited by shares | Dissolved |
| SUNLIGHT ENERGY SAVING ENVIRONMENT LIMITED | Private company limited by shares | Dissolved |
| CONOWA ENGINEERING CO., LIMITED | Private company limited by shares | Live |
| CHUNGCO ENGINEERING COMPANY LIMITED | Private company limited by shares | Live |
| WAH KAM ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| SHENZHEN QY ENTERPRISE CO., LIMITED | Private company limited by shares | Live |
| SPS ENTERPRISES LIMITED | Private company limited by shares | Live |
| HK GA ENERGY TECHNOLOGY LIMITED | Private company limited by shares | Dissolved |
| TEAM WEALTH ENGINEERING LIMITED | Private company limited by shares | Live |
| ASIA PACIFIC ENVIRONMENT FUND LIMITED | Private company limited by shares | Live |
| ECO WAVE ENVIRONMENTAL HK LIMITED | Private company limited by shares | Dissolved |
| WALTERS ENTERPRISE LIMITED | Private company limited by shares | Live |
| VUN FAT ENVIRONMENTAL TECHNOLOGY COMPANY LIMITED | Private company limited by shares | Dissolved |
| JOVIAL ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| TCC ENERGY TECHNOLOGY LIMITED | Private company limited by shares | Dissolved |
| TOPSTAND ENTERPRISES LIMITED | Private company limited by shares | Live |
| CHIN LUN ENGINEERING LIMITED | Private company limited by shares | Live |
| ESTABLISH ENGINEERING MANAGEMENT LIMITED | Private company limited by shares | Live |
| CHUNG HING CONSTRUCTION & ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| YU YE ENGINEERING LIMITED | Private company limited by shares | Live |
| WAI FUK ENGINEERING LIMITED | Private company limited by shares | Live |
| WA KEUNG AIR-CONDITION ENGINEERING LIMITED | Private company limited by shares | Live |
| Ken Tak Engine Machinery Limited | Private company limited by shares | Live |
| COASTAL ENERGY COMPANY LIMITED | Private company limited by shares | Live |
| Global Enrich Limited | Private company limited by shares | Live |
| KAM WAH YUEN ENGINEERING LIMITED | Private company limited by shares | Live |
| Wong Tsai Environment Transportation Limited | Private company limited by shares | Live |