| SAN HING MECHANICAL & ELECTRICAL ENGINEERING LIMITED | Private company limited by shares | Live |
| Kin Hing Electrical & Mechanical Engineering Limited | | Live |
| MING HING ELECTRICAL ENGINEERING LIMITED | Private company limited by shares | Live |
| NGAI HING ELECTRICAL ENGINEERING COMPANY LIMITED | Private company limited by shares | Dissolved |
| SHUI HING ELECTRICAL ENGINEERING COMPANY LIMITED | Private company limited by shares | Dissolved |
| WANG HING ELECTRICAL ENGINEERING LIMITED | Private company limited by shares | Live |
| WING HING ELECTRICAL ENGINEERING COMPANY LIMITED | Private company limited by shares | Live |
| WING HING ELECTRICAL AIR-CON ENGINEERING LIMITED | Private company limited by shares | Live |
| HOLDER ELECTRICAL & MECHANICAL ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| HUNTER ELECTRICAL ENGINEERING COMPANY LIMITED | Private company limited by shares | Live |
| JACKSON ELECTRICAL ENGINEERING LIMITED | Private company limited by shares | Live |
| JIATAI ELECTRICAL ENGINEERING CO., LIMITED | Private company limited by shares | Live |
| KALIN ELECTRICAL ENGINEERING COMPANY LIMITED | Private company limited by shares | Live |
| KAPPA ELECTRICAL AND MECHANICAL ENGINEERING COMPANY LIMITED | Private company limited by shares | Live |
| Kunto Mechanical & Electrical Engineering (HK) Limited | Private company limited by shares | Live |
| LICK HANG ELECTRICAL ENGINEERING LIMITED | Private company limited by shares | Live |
| Grande Lighting Electrical Engineering Co., Limited | Private company limited by shares | Live |
| LINGMA ELECTRICAL & MECHANICAL ENGINEERING LIMITED | Private company limited by shares | Live |
| LUNG FAI ELECTRICAL ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| WAI LUNG ELECTRICAL ENGINEERING LIMITED | Private company limited by shares | Live |
| KAM LUNG ELECTRICAL AIR-CONDITION ENGINEERING LIMITED | Private company limited by shares | Live |
| Manda Electrical Engineering Co., Limited | Private company limited by shares | Live |
| MARINE & ELECTRICAL ENGINEERING COMPANY, LIMITED | Private company limited by shares | Dissolved |
| DRAGON STAR ELECTRICAL MECHANICAL ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| MODERNIZE ELECTRICAL ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| NANFONG ELECTRICAL AND ENGINEERING COMPANY LIMITED | Private company limited by shares | Dissolved |
| PANG HO ELECTRICAL ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| Partner-Up Electrical Appliances & Engineering Company Limited | Private company limited by shares | Live |
| TAI PING ELECTRICAL (ENGINEERING) COMPANY LIMITED | Private company limited by shares | Live |
| POWERFUL ELECTRICAL ENGINEERING COMPANY LIMITED | Private company limited by shares | Dissolved |
| Powerful Electrical Engineering Company Limited | Private company limited by shares | Live |
| Quality Craftsman Electrical Engineering Company Limited | Private company limited by shares | Live |
| RISING ELECTRICAL ENGINEERING COMPANY LIMITED | Private company limited by shares | Live |
| RISING UNIT ELECTRICAL ENGINEERING CO. LIMITED | Private company limited by shares | Live |
| SAGE ELECTRICAL ENGINEERING LIMITED | | Live |
| Seaway Electrical Engineering Co., Limited | Private company limited by shares | Live |
| SKYTON ELECTRICAL & MECHANICAL ENGINEERING COMPANY LIMITED | Private company limited by shares | Live |
| Sunny Electrical Engineering Limited | | Live |
| SUNNY ELECTRICAL ENGINEERING (CONTRACTING) LIMITED | Private company limited by shares | Dissolved |
| SUPER ELECTRICAL & ENGINEERING COMPANY LIMITED | Private company limited by shares | Live |
| SUPER VIEW ELECTRICAL ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| Taiho Electrical Engineering Company Limited | | Live |
| WIN TECH ELECTRICAL AND MECHANICAL ENGINEERING COMPANY LIMITED | Private company limited by shares | Dissolved |
| WIN TECH ELECTRICAL AND MECHANICAL ENGINEERING COMPANY LIMITED | Private company limited by shares | Live |
| HO KIU LOK TECHNOLOGY ELECTRICAL ENGINEERING LIMITED | Private company limited by shares | Live |
| NIK TIEN AIR CONDITION AND ELECTRICAL ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| Yuen Tone Electrical Engineering Company Limited | | Live |
| HIP HING ELECTRICAL ENGINEERING & TRADING COMPANY LIMITED | Private company limited by shares | Dissolved |
| JET TUNG ELECTRICAL ENGINEERING COMPANY LIMITED | Private company limited by shares | Live |
| TUNG HEI ELECTRICAL ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| CHI TUNG ELECTRICAL ENGINEERING CO., LIMITED | Private company limited by shares | Live |
| WALFORD ELECTRICAL & MECHANICAL ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| Powerful Waterworks & Electrical Engineering Limited | Private company limited by shares | Live |
| WELL GROW ELECTRICAL & ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| Power Well Electrical Engineering Co. Limited | | Live |
| WELLY ELECTRICAL ENGINEERING CO., LIMITED | Private company limited by shares | Dissolved |
| Wise Electrical Engineering Limited | Private company limited by shares | Live |
| HING WONG ELECTRICAL ENGINEERING COMPANY LIMITED | Private company limited by shares | Live |
| TALENT MECHANICAL & ELECTRICAL ENGINEERS LIMITED | Private company limited by shares | Live |
| Everfar Electrical Group Co., Limited | Private company limited by shares | Live |
| EXCELLENT ELECTRICAL COMPANY LIMITED | Private company limited by shares | Dissolved |
| CROWN ELECTRICAL IMPORT AND EXPORT CO., LIMITED | Private company limited by shares | Dissolved |
| YOKE ELECTRICAL APPARATUS IMPORT AND EXPORT LIMITED | Private company limited by shares | Live |
| CHUNG KEE ELECTRICAL FACTORY LIMITED | Private company limited by shares | Dissolved |
| TAI MING ELECTRICAL FACTORY LIMITED | Private company limited by shares | Live |
| STANDARD ELECTRICAL FACTORY LIMITED | Private company limited by shares | Dissolved |
| ZHEJIANG FANGTAI ELECTRICAL GROUP LIMITED | Private company limited by shares | Dissolved |
| FAST AIR-CONDITION & ELECTRICAL COMPANY LIMITED | Private company limited by shares | Live |
| H.K FEILANG ELECTRICAL LIMITED | Company limited by guarantee | Dissolved |
| FENGLONG ELECTRICAL MACHINERY HONGKONG LIMITED | Private company limited by shares | Live |
| FINE TUNE ELECTRICAL SUPPLIES LIMITED | Private company limited by shares | Live |
| FIRMSTAR ELECTRICAL COMPANY LIMITED | Private company limited by shares | Dissolved |
| FIRST ELECTRICAL CO LIMITED | Private company limited by shares | Live |
| XIAN RED FLAG ELECTRICAL MACHINERY LIMITED | Private company limited by shares | Dissolved |
| Fast & Focus Electrical Co. Limited | Private company limited by shares | Live |
| FOGA ELECTRICAL SERVICE LIMITED | Private company limited by shares | Live |
| FOREKEEN ELECTRICAL LIMITED | Private company limited by shares | Live |
| FOREST ELECTRICAL CENTRE LIMITED | Private company limited by shares | Dissolved |
| Fortune Hoi Electrical Limited | Private company limited by shares | Live |
| FORTUNE ELECTRICAL APPLIANCES LIMITED | Private company limited by shares | Dissolved |
| FORTUNE ELECTRICAL CO., LIMITED | Private company limited by shares | Live |
| FRANCE L & C ELECTRICAL COMPANY LIMITED | Private company limited by shares | Live |
| DIERLAISI (FRANCE) TECHNOLOGY ELECTRICAL CO., LIMITED | Private company limited by shares | Live |
| FREELAND ELECTRICAL COMPANY LIMITED | Private company limited by shares | Dissolved |
| FUJIAN FUFA ELECTRICAL CO., LIMITED | Private company limited by shares | Live |
| E. FUNG AUDIO & VIDEO ELECTRICAL LIMITED | Private company limited by shares | Dissolved |
| HANG FUNG ELECTRICAL COMPANY LIMITED | Private company limited by shares | Live |
| HANG FUNG ELECTRICAL ENGINEERING COMPANY LIMITED | Private company limited by shares | Dissolved |
| HANG FUNG ELECTRICAL SUPPLIES COMPANY LIMITED | Private company limited by shares | Live |
| FUNG HANG ELECTRICAL WORKS LIMITED | Private company limited by shares | Dissolved |
| GERMANY GUO JAN ELECTRICAL LIMITED | Private company limited by shares | Live |
| GERMANY JAN YEN ELECTRICAL LIMITED | Private company limited by shares | Live |
| GERMANY ADANER ELECTRICAL GROUP CO., LIMITED | Private company limited by shares | Live |
| GERMANY PU LAN KE ELECTRICAL APPLIANCE GROUP CO., LIMITED | Private company limited by shares | Live |
| GERMANY AKA ELECTRICAL APPLIANCES LIMITED | Private company limited by shares | Live |
| GERMANY GEDEBAO ELECTRICAL APPLIANCES GROUP LIMITED | Private company limited by shares | Dissolved |
| Germany Kachio Electrical Appliances Limited | Private company limited by shares | Live |
| GERMANY AUPO ELECTRICAL LIMITED | Private company limited by shares | Live |
| GERMANY BOGE ELECTRICAL INT'L CO., LIMITED | Private company limited by shares | Live |
| GERMANY DEMENZI ELECTRICAL (CHINA) CO., LIMITED | Private company limited by shares | Dissolved |