| Billion Electronics Limited | Private company limited by shares | Live |
| BILLION WAY ELECTRONICS LIMITED | Private company limited by shares | Live |
| BILLION MAX ELECTRONICS LIMITED | Private company limited by shares | Live |
| BILLION TOP ELECTRONICS LIMITED | Private company limited by shares | Live |
| NEW BILLION ELECTRONICS LIMITED | Private company limited by shares | Live |
| BILLION CREATION ELECTRONICS LIMITED | | Live |
| BILLION ELECTRONICS ENTERPRISE LIMITED | Private company limited by shares | Dissolved |
| BILLION EXPRESS TECHNOLOGY ELECTRONICS LIMITED | Private company limited by shares | Live |
| FULL BILLION ELECTRONICS LIMITED | Private company limited by shares | Live |
| BILLION ELECTRONICS ROTHLEY LIMITED | Private company limited by shares | Dissolved |
| BILLION SHEEN ELECTRONICS LIMITED | Private company limited by shares | Live |
| BILLION WELL ELECTRONICS LIMITED | Private company limited by shares | Live |
| BILLION ELEGANT LIMITED | Private company limited by shares | Dissolved |
| BILLION ELEGANT LIMITED | Private company limited by shares | Live |
| BILLION ELEGANT INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| BILLION ELITE LIMITED | Private company limited by shares | Dissolved |
| ELITE BILLION LIMITED | Private company limited by shares | Dissolved |
| BILLION ELITE LIMITED | Private company limited by shares | Live |
| ELITE BILLION LIMITED | Private company limited by shares | Live |
| ELITE BILLION INC LIMITED | Private company limited by shares | Live |
| BILLION ELITE LIMITED | Private company limited by shares | Live |
| BILLION ELITE ENTERPRISE LIMITED | Private company limited by shares | Live |
| BILLION ELITE INVESTMENT LIMITED | Private company limited by shares | Live |
| ELITE BILLION INVESTMENT LIMITED | Private company limited by shares | Live |
| BILLION BEST (E&M) ENGINEERING COMPANY LIMITED | Private company limited by shares | Live |
| BILLION EMPEROR LIMITED | Private company limited by shares | Dissolved |
| BILLION EMPEROR LIMITED | Private company limited by shares | Dissolved |
| BILLION EMPIRE LIMITED | Private company limited by shares | Dissolved |
| EMPIRE BILLION LIMITED | Private company limited by shares | Dissolved |
| BILLION EMPIRE LIMITED | Private company limited by shares | Live |
| EMPIRE BILLION LIMITED | Private company limited by shares | Live |
| EMPIRE BILLION CONSULTANCY LIMITED | Private company limited by shares | Live |
| BILLION EMPIRE INVESTMENT LIMITED | Private company limited by shares | Live |
| BILLION EMPIRE INVESTMENTS LIMITED | Private company limited by shares | Live |
| BILLION EMPIRE TRADING LIMITED | Private company limited by shares | Dissolved |
| BILLION ENERGY COMPANY LIMITED | Private company limited by shares | Dissolved |
| BILLION ENERGY LIMITED | Private company limited by shares | Live |
| Billion Clean Energy Limited | Private company limited by shares | Live |
| Billion Smart Green Energy Limited | Private company limited by shares | Live |
| Billion Smart Energy Co. Limited | | Live |
| BILLION ENERGY-SAVING ELECTRICAL COMPANY LIMITED | Private company limited by shares | Dissolved |
| BILLION ENGINEERING COMPANY LIMITED | Private company limited by shares | Live |
| BILLION SUN ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| TOP BILLION ENGINEERING LIMITED | Private company limited by shares | Live |
| BILLION TOP ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| BILLION FAI ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| BILLION WIN ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| BILLION SKY ENGINEERING LIMITED | Private company limited by shares | Live |
| WIN BILLION ENGINEERING LIMITED | Private company limited by shares | Live |
| SKY BILLION ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| BILLION SEA ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| BILLION WAY ENGINEERING LIMITED | Private company limited by shares | Live |
| NEW BILLION ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| BILLION TOP ENGINEERING LIMITED | Private company limited by shares | Live |
| SKY BILLION ENGINEERING LIMITED | Private company limited by shares | Live |
| BILLION WIN ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| SUN BILLION ENGINEERING COMPANY LIMITED | Private company limited by shares | Live |
| BILLION MAX ENGINEERING LIMITED | Private company limited by shares | Live |
| BILLION TOP ENGINEERING LIMITED | Private company limited by shares | Live |
| ALLIED BILLION ENGINEERING LIMITED | Private company limited by shares | Live |
| BILLION ASCENT ENGINEERING LIMITED | Private company limited by shares | Live |
| Billion Ascot Engineering Limited | Private company limited by shares | Live |
| BILLION ASIA ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| BEST BILLION ENGINEERING LIMITED | Private company limited by shares | Live |
| BILLION BEST ENGINEERING LIMITED | Private company limited by shares | Live |
| BILLION BLOOM ENGINEERING LIMITED | Private company limited by shares | Live |
| BILLION CHAMP ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| BILLION CHAMPION ENGINEERING LIMITED | Private company limited by shares | Live |
| BILLION CHINA ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| BILLION TOP CONSTRUCTION ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| BILLION CONSTRUCTION ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| BILLION CONSTRUCTION ENGINEERING LIMITED | Private company limited by shares | Live |
| SKY BILLION CONSTRUCTION ENGINEERING LIMITED | | Live |
| BILLION CROWN CONSTRUCTION ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| GOLD BILLION CONSTRUCTION ENGINEERING LIMITED | | Live |
| MEGA BILLION CONSTRUCTION ENGINEERING LIMITED | Private company limited by shares | Live |
| BILLION RICH CONSTRUCTION ENGINEERING LIMITED | Private company limited by shares | Live |
| BILLION TEAM CONSTRUCTION ENGINEERING LIMITED | Private company limited by shares | Live |
| BILLION WELL CONSTRUCTION ENGINEERING COMPANY LIMITED | Private company limited by shares | Live |
| BILLION CREATION ENGINEERING LIMITED | Private company limited by shares | Live |
| BILLION CROWN ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| CROWN BILLION ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| BILLION CROWN ENGINEERING LIMITED | Private company limited by shares | Live |
| BILLION DIAMOND ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| BILLION DRAGON ENGINEERING LIMITED | Private company limited by shares | Live |
| DRAGON BILLION ENGINEERING LIMITED | Private company limited by shares | Live |
| ETERNAL BILLION ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| EVER BILLION ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| EVER BILLION ENGINEERING LIMITED | | Live |
| BILLION EXPRESS ENGINEERING LIMITED | Private company limited by shares | Live |
| EXPRESS BILLION ENGINEERING LIMITED | Private company limited by shares | Live |
| BILLION FAME ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| BILLION FAME ENGINEERING LIMITED | Private company limited by shares | Live |
| BILLION FORCE ENGINEERING LIMITED | Private company limited by shares | Live |
| BILLION FORD ENGINEERING LIMITED | Private company limited by shares | Live |
| BILLION FORTUNE ENGINEERING LIMITED | Private company limited by shares | Live |
| FULL BILLION ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| FULL BILLION ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| BILLION GAIN ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| BILLION GAIN ENGINEERING LIMITED | Private company limited by shares | Dissolved |