| BILLION GAINER ENGINEERING LIMITED | Private company limited by shares | Live |
| BILLION GOLD ENGINEERING LIMITED | Private company limited by shares | Live |
| GRAND BILLION ENGINEERING LIMITED | Private company limited by shares | Live |
| BILLION GRAND ENGINEERING LIMITED | Private company limited by shares | Live |
| BILLION GROUP ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| BILLION GROUP ENGINEERING LIMITED | Private company limited by shares | Live |
| BILLION HILL ENGINEERING LIMITED | Private company limited by shares | Live |
| Billion Honest Engineering Company Limited | Private company limited by shares | Live |
| BILLION ENGINEERING (HONG KONG) COMPANY LIMITED | Private company limited by shares | Live |
| Sky Billion Engineering (Hong Kong) Limited | | Live |
| BILLION HOPE ENGINEERING LIMITED | | Live |
| Hundred Billion Engineering Limited | | Live |
| BILLION LAND ENGINEERING LIMITED | Private company limited by shares | Live |
| Billion Leader Engineering Limited | Private company limited by shares | Live |
| BILLION LEADERSHIP ENGINEERING LIMITED | | Live |
| BILLION LUCKS ENGINEERING COMPANY LIMITED | Private company limited by shares | Dissolved |
| BILLION MING MARINE ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| MARK BILLION ENGINEERING LIMITED | Private company limited by shares | Live |
| Billion Mark Engineering Co. Limited | Private company limited by shares | Live |
| BILLION MASTER ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| MEGA BILLION ENGINEERING LIMITED | Private company limited by shares | Live |
| BILLION MEGA ENGINEERING LIMITED | Private company limited by shares | Live |
| METRO BILLION ENGINEERING LIMITED | Private company limited by shares | Live |
| BILLION NICE ENGINEERING LIMITED | Private company limited by shares | Live |
| OCEAN BILLION ENGINEERING LIMITED | Private company limited by shares | Live |
| BILLION OCEAN ENGINEERING LIMITED | Private company limited by shares | Live |
| BILLION POINT ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| POLY BILLION ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| BILLION POWER ENGINEERING LIMITED | Private company limited by shares | Live |
| BILLION RICH ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| RICH BILLION ENGINEERING LIMITED | Private company limited by shares | Live |
| BILLION RISE ENGINEERING LIMITED | Private company limited by shares | Live |
| BILLION RISE PAINTING & ENGINEERING LIMITED | Private company limited by shares | Live |
| BILLION RIVER ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| BILLION SKYWORK ENGINEERING LIMITED | Private company limited by shares | Live |
| SMART BILLION ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| BILLION SMART ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| BILLION SMART ENGINEERING COMPANY LIMITED | Private company limited by shares | Live |
| BILLION STAR ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| STAR BILLION ENGINEERING LIMITED | Private company limited by shares | Live |
| BILLION SUCCESS ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| BILLION SUCCESS ENGINEERING LIMITED | Private company limited by shares | Live |
| SURE BILLION ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| BILLION TEAM ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| BILLION TIMES ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| BILLION UNITED ENGINEERING LIMITED | Private company limited by shares | Live |
| BILLION VAST ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| BILLION VIEW ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| BILLION WEALTH ENGINEERING LIMITED | Private company limited by shares | Live |
| WEALTH BILLION ENGINEERING LIMITED | Private company limited by shares | Live |
| BILLION WELL ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| BILLION WELL ENGINEERING LIMITED | Private company limited by shares | Live |
| WELL BILLION ENGINEERING LIMITED | Private company limited by shares | Live |
| BILLION YIELD ENGINEERING COMPANY LIMITED | | Live |
| BILLION ENOUGH LIMITED | Private company limited by shares | Dissolved |
| BILLION SUN ENTERPRISE LIMITED | Private company limited by shares | Dissolved |
| BILLION SEA ENTERPRISE LIMITED | Private company limited by shares | Dissolved |
| BILLION WAY ENTERPRISE LIMITED | Private company limited by shares | Live |
| BILLION ON ENTERPRISE LIMITED | Private company limited by shares | Live |
| BILLION SKY ENTERPRISE LIMITED | Private company limited by shares | Live |
| BILLION ENTERPRISE LIMITED | Private company limited by shares | Dissolved |
| BILLION WIN ENTERPRISE LIMITED | Private company limited by shares | Dissolved |
| SEA BILLION ENTERPRISE LIMITED | Private company limited by shares | Dissolved |
| WIN BILLION ENTERPRISE LIMITED | Private company limited by shares | Dissolved |
| BILLION JOY ENTERPRISE LIMITED | Private company limited by shares | Dissolved |
| TOP BILLION ENTERPRISE LIMITED | Private company limited by shares | Live |
| BILLION ART ENTERPRISE LIMITED | Private company limited by shares | Dissolved |
| BILLION MAX ENTERPRISE LIMITED | Private company limited by shares | Dissolved |
| BILLION JOY ENTERPRISE LIMITED | Private company limited by shares | Dissolved |
| BILLION UP ENTERPRISE LIMITED | Private company limited by shares | Live |
| SUN BILLION ENTERPRISE LIMITED | Private company limited by shares | Dissolved |
| BILLION TOP ENTERPRISE LIMITED | Private company limited by shares | Live |
| BILLION SEA ENTERPRISE LIMITED | Private company limited by shares | Dissolved |
| BILLION KEY ENTERPRISE LIMITED | Private company limited by shares | Dissolved |
| BILLION WIN ENTERPRISE LIMITED | Private company limited by shares | Live |
| BILLION ENTERPRISE LIMITED | Private company limited by shares | Live |
| JOY BILLION ENTERPRISE LIMITED | Private company limited by shares | Live |
| BILLION ART ENTERPRISE LIMITED | Private company limited by shares | Live |
| BILLION MAX ENTERPRISE LIMITED | Private company limited by shares | Live |
| Billion Boss Enterprise Limited | Private company limited by shares | Live |
| BILLION CHOICE ENTERPRISE LIMITED | Private company limited by shares | Live |
| BILLION CONVERGE ENTERPRISE LIMITED | Private company limited by shares | Live |
| BILLION CREATIVE ENTERPRISE LIMITED | Private company limited by shares | Live |
| GRAND BILLION ENTERPRISE LIMITED | Private company limited by shares | Dissolved |
| BILLION GRAND ENTERPRISE LIMITED | Private company limited by shares | Dissolved |
| GRAND BILLION ENTERPRISE LIMITED | Private company limited by shares | Live |
| BILLION HAPPY ENTERPRISE LIMITED | Private company limited by shares | Live |
| BILLION HONEST ENTERPRISE LIMITED | Private company limited by shares | Dissolved |
| BILLION HONEST ENTERPRISE LIMITED | Private company limited by shares | Dissolved |
| BILLION JOYCE ENTERPRISE LIMITED | Private company limited by shares | Dissolved |
| KONG BILLION ENTERPRISE LIMITED | Private company limited by shares | Dissolved |
| BILLION LUCK ENTERPRISE LIMITED | Private company limited by shares | Dissolved |
| BILLION LUCK ENTERPRISE LIMITED | Private company limited by shares | Dissolved |
| BILLION LUCK ENTERPRISE LIMITED | Private company limited by shares | Live |
| BILLION MARK ENTERPRISE LIMITED | Private company limited by shares | Dissolved |
| BILLION MARK ENTERPRISE LIMITED | Private company limited by shares | Live |
| BILLION NICE ENTERPRISE LIMITED | Private company limited by shares | Live |
| BILLION NICE ENTERPRISE LIMITED | Private company limited by shares | Live |
| OCEAN BILLION ENTERPRISE LIMITED | Private company limited by shares | Live |
| BILLION OCEAN ENTERPRISE LIMITED | Private company limited by shares | Dissolved |