| Wilthy Engineering Company Limited | Private company limited by shares | Live |
| INRICH ME ENGINEERING CO. LIMITED | Private company limited by shares | Live |
| CNY ENGINEERING TRADING LIMITED | Private company limited by shares | Live |
| Lee Wah Machinery Engineering Limited | Private company limited by shares | Live |
| MAYA POWER ENGINEERING COMPANY LIMITED | Private company limited by shares | Live |
| Wan Lai Air Condition Engineering ( HK ) Limited | Private company limited by shares | Live |
| Anyi Engineering Company Limited | Private company limited by shares | Dissolved |
| CN Trading and Engineering Co. Limited | Private company limited by shares | Dissolved |
| CYW AIR CONDITION ENGINEERING LIMITED | Private company limited by shares | Live |
| ALISON ENGINEERING LIMITED | Private company limited by shares | Live |
| FORTUNE TIME ENGINEERING LIMITED | Private company limited by shares | Live |
| Simplestar Engineering Limited | Private company limited by shares | Live |
| Creative Design & Engineering Co. Limited | Private company limited by shares | Live |
| LAFON ENGINEERING CO., LIMITED | Private company limited by shares | Live |
| CHAKI ENGINEERING LIMITED | Private company limited by shares | Live |
| PHAETON CONSTRUCTION ENGINEERING LIMITED | Private company limited by shares | Live |
| CAPITAL BASE ENGINEERING LIMITED | Private company limited by shares | Live |
| MAXTON ENGINEERING LIMITED | Private company limited by shares | Live |
| Wa Yip Design & Engineering Company Limited | Private company limited by shares | Live |
| Loftus Engineering Limited | Private company limited by shares | Live |
| Kinnard Engineering Limited | Private company limited by shares | Live |
| KAM LEE AIR CONDITIONING ENGINEERING LIMITED | Private company limited by shares | Live |
| JINTAI ENGINEERING CO., LIMITED | Private company limited by shares | Live |
| KINGSMIND ENGINEERING LIMITED | Private company limited by shares | Live |
| HARVEST VIEW ENGINEERING (HONG KONG) LIMITED | Private company limited by shares | Live |
| NEW LEGO ELECT. MECH. ENGINEERING LIMITED | Private company limited by shares | Live |
| KAY PO ENGINEERING LIMITED | Private company limited by shares | Live |
| WING SENG ENGINEERING LIMITED | Private company limited by shares | Live |
| KA WO ENGINEERING (HONG KONG) COMPANY LIMITED | Private company limited by shares | Live |
| MAN TAT ELECTRICAL & MECHANICAL ENGINEERING LIMITED | Private company limited by shares | Live |
| SKY MARINE ENGINEERING LIMITED | Private company limited by shares | Live |
| Atoms Engineering Limited | Private company limited by shares | Live |
| ON TARGET ENGINEERING COMPANY LIMITED | Private company limited by shares | Live |
| YIK FAI ENGINEERING LIMITED | Private company limited by shares | Live |
| DU FU ENGINEERING LIMITED | Private company limited by shares | Live |
| KONG KEI ENGINEERING LIMITED | Private company limited by shares | Live |
| FU LEUNG ENGINEERING LIMITED | Private company limited by shares | Live |
| Mentech Engineering Company Limited | Private company limited by shares | Dissolved |
| Kam Yung Construction & Engineering Limited | Private company limited by shares | Live |
| CCM Engineering Company Limited | Private company limited by shares | Live |
| HOP CHUNG DRILL CUT ENGINEERING COMPANY LIMITED | Private company limited by shares | Live |
| Pak Ngai Electrical And Mechanical Engineering Co. Limited | Private company limited by shares | Live |
| RISE ART EXHIBITION ENGINEERING LIMITED | Private company limited by shares | Live |
| TRUSTY DESIGN ENGINEERING LIMITED | Private company limited by shares | Live |
| LIK PO CONSTRUCTION ENGINEERING LIMITED | Private company limited by shares | Live |
| Sky Construction Engineering Limited | Private company limited by shares | Live |
| 2AM DESIGN & ENGINEERING COMPANY LIMITED | Private company limited by shares | Live |
| CROWN WIN CONSTRUCTION ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| CS AIR CONDITIONING ENGINEERING COMPANY LIMITED | Private company limited by shares | Live |
| S And H Engineering Co. Limited | Private company limited by shares | Live |
| ENG. T. ENGINEERING LIMITED | Private company limited by shares | Live |
| EMPIRE-GURKHAS ENGINEERING CO. LIMITED | Private company limited by shares | Live |
| 28Sign Engineering Limited | Private company limited by shares | Live |
| Mc D ENGINEERING LIMITED | Private company limited by shares | Live |
| Oriental Construction Engineering (Hong Kong) Company Limited | Private company limited by shares | Live |
| HU CONG ENGINEERING LIMITED | Private company limited by shares | Live |
| Tongsheng Engineering Company Limited | Private company limited by shares | Live |
| DRAGON ACE ENGINEERING LIMITED | Private company limited by shares | Live |
| TRINITY MOTOR ENGINEERING COMPANY LIMITED | Private company limited by shares | Live |
| EAST BEST ENGINEERING LIMITED | Private company limited by shares | Live |
| FANCY DRAGON ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| GRAND BEST ENGINEERING LIMITED | Private company limited by shares | Live |
| Altira Engineering Company Limited | Private company limited by shares | Live |
| 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 |
| MAN MING ENGINEERING & LICENCE CONSULTANCY LIMITED | Private company limited by shares | Live |
| ADVANCED ENGINEERING RESEARCH LIMITED | Private company limited by shares | Live |
| SUNRISE ENGINEERING (HVAC) 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 |
| Winning Engineering Limited | Private company limited by shares | Live |
| DON ENGINEERING LIMITED | Private company limited by shares | Live |
| PEA SHINN ENGINEERING CO., LIMITED | Private company limited by shares | Dissolved |
| CHI HIN ENGINEERING 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 |
| Nissi Engineering Company Limited | Private company limited by shares | Live |
| TMT ENGINEERING LIMITED | Private company limited by shares | Live |
| Lafto Engineering Limited | Private company limited by shares | Live |
| AMIABLE ENGINEERING 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 |
| NovaWell Engineering Limited | Private company limited by shares | Live |
| LONG BEST CONSTRUCTION ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| KAY LONG E&M ENGINEERING 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 |
| Yuk Hing Engineering Limited | Private company limited by shares | Live |
| WSS Engineering Systems Limited | Private company limited by shares | Live |
| KEK KEE TRANSPORTATION ENGINEERING LIMITED | Private company limited by shares | Live |
| FUTURE FIGHT ENGINEERING LIMITED | Private company limited by shares | Live |
| WAI LIK ENGINEERING COMPANY LIMITED | Private company limited by shares | Live |
| LONGO ENGINEERING LIMITED | Private company limited by shares | Live |