| EFFICIENT ENGINEERING (HK) LIMITED | Private company limited by shares | Live |
| EFFICIENT INDUSTRIAL (HK) LIMITED | | Live |
| EFFICIENT (HK) INDUSTRY LIMITED | Private company limited by shares | Live |
| EFFICIENT TECHNOLOGY (HK) Company Limited | Private company limited by shares | Live |
| G-CITY EFFICIENT ENERGY HOLDINGS LIMITED | Private company limited by shares | Live |
| HONEST & EFFICIENT COMPANY LIMITED | Private company limited by shares | Dissolved |
| HONG KONG EFFICIENT CONSULTING LIMITED | Private company limited by shares | Live |
| EFFICIENT FRONTIER HONG KONG LIMITED | Private company limited by shares | Dissolved |
| EFFICIENT OFFICE (HONG KONG) LIMITED | Private company limited by shares | Live |
| HONGKONG EFFICIENT DELIVERY INTERNATIONAL CO. LIMITED | Private company limited by shares | Dissolved |
| HONGKONG POLY EFFICIENT FINANCE HOLDING LIMITED | Private company limited by shares | Live |
| HE Efficient Industry Group Limited | Private company limited by shares | Live |
| EFFICIENT INFORMATION SECURITY LIMITED | Private company limited by shares | Live |
| EFFICIENT INSTITUTE LIMITED | Private company limited by shares | Dissolved |
| EFFICIENT INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| EFFICIENT BUSINESS INTERNATIONAL LIMITED | Private company limited by shares | Live |
| EFFICIENT CHANNEL INTERNATIONAL LIMITED | Private company limited by shares | Live |
| Efficient DriveTrains International Limited | Private company limited by shares | Dissolved |
| EFFICIENT DYNASTY INTERNATIONAL LIMITED | Private company limited by shares | Live |
| HANHUA INTERNATIONAL EFFICIENT FINANCE HOLDING LIMITED | Private company limited by shares | Live |
| EFFICIENT INTERNATIONAL TRADING (HK) LIMITED | Private company limited by shares | Dissolved |
| EFFICIENT INVESTMENTS LIMITED | Private company limited by shares | Live |
| DET Efficient Lighting Limited | Private company limited by shares | Live |
| EFFICIENT LINK LIMITED | Private company limited by shares | Live |
| EFFICIENT TRADING & LOGISTICS CONSULTING LIMITED | Private company limited by shares | Live |
| EFFICIENT MANAGEMENT LIMITED | Private company limited by shares | Dissolved |
| EFFICIENT PROPERTY MANAGEMENT CO. LIMITED | Private company limited by shares | Live |
| EFFICIENT MARKET LIMITED | Private company limited by shares | Live |
| EFFICIENT (NOMINEES) LIMITED | Private company limited by shares | Live |
| OCEAN EFFICIENT COMPANY LIMITED | Private company limited by shares | Live |
| EFFICIENT PARTNERS LIMITED | Private company limited by shares | Live |
| EFFICIENT PLATINUM LIMITED | Private company limited by shares | Live |
| Efficient Power Capital Limited | | Live |
| EFFICIENT PRINTING AND LABEL COMPANY LIMITED | Private company limited by shares | Dissolved |
| Efficient Architectural Products Limited | | Live |
| BRIGHT & EFFICIENT PROFESSIONAL DISH WASHING LIMITED | Private company limited by shares | Live |
| Efficient Profit Limited | Private company limited by shares | Live |
| EFFICIENT PROMOTIONS (HK) COMPANY LIMITED | Private company limited by shares | Live |
| EFFICIENT RUBBER PRODUCTS LIMITED | Private company limited by shares | Live |
| Efficient Secretaries Limited | Private company limited by shares | Live |
| EFFICIENT SERVICES LIMITED | Private company limited by shares | Live |
| EFFICIENT SERVICES (1991) LIMITED | Private company limited by shares | Dissolved |
| EFFICIENT SERVICES (2005) LIMITED | Private company limited by shares | Dissolved |
| EVER EFFICIENT SERVICES COMPANY LIMITED | Private company limited by shares | Dissolved |
| EFFICIENT SHEEN LIMITED | Private company limited by shares | Live |
| EFFICIENT SHIPPING LIMITED | Private company limited by shares | Dissolved |
| EFFICIENT SOURCING CO., LIMITED | Private company limited by shares | Live |
| Efficient Supply Limited | Private company limited by shares | Live |
| Efficient Systems Limited | | Live |
| BO Efficient Technologies Limited | | Live |
| EFFICIENT TECHNOLOGIES (HONG KONG) CO., LIMITED | Private company limited by shares | Live |
| EFFICIENT TECHNOLOGY COMPANY LIMITED | Private company limited by shares | Dissolved |
| EFFICIENT TECHNOLOGY LIMITED | Private company limited by shares | Live |
| RBS Efficient Technology Limited | Private company limited by shares | Live |
| EFFICIENT TECHNOLOGY COMPANY LIMITED | Private company limited by shares | Live |
| Efficient Electronic Technology Limited | Private company limited by shares | Live |
| HK EFFICIENT INTELLIGENT SORTING TECHNOLOGY LIMITED | Private company limited by shares | Live |
| EFFICIENT TRADING LIMITED | Private company limited by shares | Dissolved |
| EFFICIENT TRADING LIMITED | Private company limited by shares | Dissolved |
| EFFICIENT TRADING LIMITED | Private company limited by shares | Live |
| EFFICIENT TRAVEL COMPANY LIMITED | Private company limited by shares | Dissolved |
| EFFICIENT TYCOON LIMITED | | Live |
| EFFICIENT UNIFORM COMPANY LIMITED | Private company limited by shares | Live |
| A.ADVANTAGE EFFICIENT WORLD LIMITED | Private company limited by shares | Dissolved |
| Efficient World Trade Limited | Private company limited by shares | Dissolved |
| E-fficient Technology Worldwide Limited | Private company limited by shares | Live |
| EFFICIENTASK LIMITED | Private company limited by shares | Live |
| EfficientEnergy Technology Limited | Private company limited by shares | Dissolved |
| Efficientor Limited | Private company limited by shares | Live |
| EFFIE LIMITED -THE- | Private company limited by shares | Live |
| Effi-ECO Lighting Company Limited | Private company limited by shares | Live |
| EFFIGI GARMENT COMPANY LIMITED | Private company limited by shares | Live |
| EFFIGY LIMITED | Private company limited by shares | Dissolved |
| EFFIKAP LIMITED | Private company limited by shares | Live |
| EFFIM ASSET MANAGEMENT COMPANY LIMITED | Private company limited by shares | Live |
| EFFIMAGE LIMITED | Private company limited by shares | Dissolved |
| EFFIMAX COMPANY LIMITED | Private company limited by shares | Live |
| EFFIMEX LIMITED | Private company limited by shares | Live |
| EFFINGHAM ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| EFFIRELI ELECTRONICS (HK) LIMITED | Private company limited by shares | Live |
| EFFISCIENT LIMITED | Private company limited by shares | Live |
| EFFISIS LIMITED | Private company limited by shares | Dissolved |
| EFFIT LIMITED | Private company limited by shares | Live |
| EFFIVANY (HONG KONG) LIMITED | Private company limited by shares | Dissolved |
| EFFLEX CO., LIMITED | Private company limited by shares | Live |
| EFFLORESCENCE INVESTMENT LIMITED | Private company limited by shares | Live |
| EFFLUENT GAIN LIMITED | Private company limited by shares | Dissolved |
| EFFORD ENTERPRISES LIMITED | Private company limited by shares | Live |
| SALES EFFORD LIMITED | Private company limited by shares | Dissolved |
| Efforest Company Limited | Private company limited by shares | Live |
| Effori Sports Advisors Limited | Private company limited by shares | Live |
| EFFORT & COMPANY LIMITED | Private company limited by shares | Dissolved |
| TOP EFFORT LIMITED | Private company limited by shares | Dissolved |
| KEY EFFORT LIMITED | Private company limited by shares | Dissolved |
| NEW EFFORT LIMITED | Private company limited by shares | Live |
| EFFORT LIMITED | Private company limited by shares | Dissolved |
| ALL EFFORT LIMITED | Private company limited by shares | Live |
| WIN EFFORT LIMITED | Private company limited by shares | Dissolved |
| TOP EFFORT LIMITED | Private company limited by shares | Dissolved |
| JOY EFFORT LIMITED | Private company limited by shares | Live |