| Tamao Blue Limited | | Live |
| Blue Tangent Limited | | Live |
| Deep Blue Think Tank Science Research Limited | Private company limited by shares | Live |
| BLUE TAXICABS LIMITED -THE- | Private company limited by shares | Live |
| BLUE OCEAN TEAM COMPANY LIMITED | Private company limited by shares | Live |
| Blue Tears Limited | Private company limited by shares | Live |
| TECH BLUE LIMITED | Private company limited by shares | Live |
| BLUE SKY ECO TECH COMPANY LIMITED | Private company limited by shares | Live |
| HK BLUE GEM TECH LIMITED | | Live |
| Blue Charm Tech Company Limited | | Live |
| BLUE SKY SMART TECH LIMITED | | Live |
| BLUE TECH IT SOLUTIONS LIMITED | | Live |
| BLUE WAVE TECH LIMITED | Private company limited by shares | Dissolved |
| Ocean Blue Technical Service Co., Limited | Private company limited by shares | Live |
| BLUE OCEAN METAL TECHNICAL LIMITED | Private company limited by shares | Live |
| BLUE OCEAN TECHNICAL & SERVICES LIMITED | Private company limited by shares | Live |
| BLUE FIN TECHNOLOGIES LIMITED | Private company limited by shares | Dissolved |
| BLUE SKY TECHNOLOGIES LIMITED | Private company limited by shares | Dissolved |
| Blue Sky Technologies Limited | Private company limited by shares | Live |
| Blue Ark Technologies Limited | | Live |
| BLUE OCEAN DISPLAY TECHNOLOGIES LIMITED | Private company limited by shares | Dissolved |
| BLUE DRAGON TECHNOLOGIES LIMITED | Private company limited by shares | Live |
| BLUE ELECTRONIC TECHNOLOGIES LIMITED | Private company limited by shares | Dissolved |
| Blue Leaf Technologies Limited | Private company limited by shares | Live |
| BLUE MOON TECHNOLOGIES LIMITED | Private company limited by shares | Live |
| Blue Oceans Technologies Limited | Private company limited by shares | Live |
| PACIFIC BLUE TECHNOLOGIES LIMITED | Private company limited by shares | Live |
| BLUE EYE TECHNOLOGY LIMITED | Private company limited by shares | Dissolved |
| BLUE TECHNOLOGY LIMITED | Private company limited by shares | Dissolved |
| BLUE SKY TECHNOLOGY LIMITED | Private company limited by shares | Live |
| BLUE TECHNOLOGY LIMITED | Private company limited by shares | Live |
| BLUE WAY TECHNOLOGY LIMITED | Private company limited by shares | Live |
| HK BLUE TECHNOLOGY LIMITED | Private company limited by shares | Live |
| Blue Map Technology HK Limited | Private company limited by shares | Live |
| Blue technology HK Limited | Private company limited by shares | Live |
| All Blue Technology Limited | Private company limited by shares | Live |
| Blue Ark Technology Company Limited | Private company limited by shares | Live |
| Sea blue technology Limited | | Live |
| HK BLUE WIN TECHNOLOGY LIMITED | | Live |
| Xun Blue Technology Limited | | Live |
| ZD BLUE SUN TECHNOLOGY LIMITED | | Live |
| Blue Beauty Technology Limited | Private company limited by shares | Live |
| Blue Boat Technology Limited | Private company limited by shares | Live |
| BLUE CHARACTER TECHNOLOGY LIMITED | Private company limited by shares | Live |
| Charming Blue Technology Limited | Private company limited by shares | Live |
| BLUE CHIPS TECHNOLOGY LIMITED | Private company limited by shares | Live |
| Deep Blue Electronic Technology Co., Limited | | Live |
| BLUE SHELLZ ELECTRONIC TECHNOLOGY CO., LIMITED | Private company limited by shares | Live |
| Red Green Blue Optoelectronic Technology Co., Limited | Private company limited by shares | Dissolved |
| BLUE SKY MARINE TECHNOLOGY SERVICE CO., LIMITED | Private company limited by shares | Live |
| CREATIVITY BLUE TECHNOLOGY HOLDING GROUP LIMITED | Private company limited by shares | Dissolved |
| CYBER BLUE TECHNOLOGY LIMITED | Private company limited by shares | Live |
| DEEP BLUE TECHNOLOGY LIMITED | Private company limited by shares | Live |
| BLUE DESIGN TECHNOLOGY CO., LIMITED | Private company limited by shares | Live |
| BLUE DIAMOND LIGHTING TECHNOLOGY CO., LIMITED | Private company limited by shares | Live |
| SKY BLUE DIGITAL TECHNOLOGY LIMITED | Private company limited by shares | Dissolved |
| Blue Dragon Technology Limited | Private company limited by shares | Live |
| Blue Electric Technology Limited | | Live |
| Blue PV Electronic Technology Co., Limited | Private company limited by shares | Live |
| Blue Coast Electronic Technology Co., Limited | Private company limited by shares | Live |
| BLUE SKY ELECTRONIC TECHNOLOGY (HK) CO., LIMITED | Private company limited by shares | Live |
| Blue Element Technology Limited | Private company limited by shares | Live |
| EVER BLUE TECHNOLOGY CO., LIMITED | Private company limited by shares | Live |
| BLUE OCEAN FINANCIAL TECHNOLOGY LIMITED | Private company limited by shares | Live |
| GRAND BLUE TECHNOLOGY LIMITED | Private company limited by shares | Live |
| AQUA SKY BLUE TECHNOLOGY (HONG KONG) LIMITED | Private company limited by shares | Live |
| BLUE HORIZON TECHNOLOGY LIMITED | Private company limited by shares | Live |
| Blue Horizon Technology Limited | Private company limited by shares | Live |
| BLUE OCEAN IMAGING TECHNOLOGY LIMITED | Private company limited by shares | Live |
| BLUE STAR TECHNOLOGY INDUSTRIAL CO., LIMITED | Private company limited by shares | Live |
| Blue Sky Innovative Technology Limited | Private company limited by shares | Live |
| Blue Arc Technology Investment Company Limited | Private company limited by shares | Dissolved |
| BLUE ANGEL TECHNOLOGY INVESTMENT LIMITED | Private company limited by shares | Live |
| BLUE LAKE TECHNOLOGY LIMITED | | Live |
| BLUE LIGHTING TECHNOLOGY CO., LIMITED | Private company limited by shares | Live |
| Marine Blue Technology Co., Limited | | Live |
| Blue Ocean Metal Technology Limited | | Live |
| BLUE SEA METALS TECHNOLOGY LIMITED | Private company limited by shares | Live |
| BLUE BLUE SKY NETWORK TECHNOLOGY LIMITED | | Live |
| BLUE NETWORK TECHNOLOGY LIMITED | | Live |
| BLUE OCEAN NETWORK TECHNOLOGY LIMITED | | Live |
| BLUE ORBIT TECHNOLOGY LIMITED | Private company limited by shares | Live |
| BLUE PACIFIC TECHNOLOGY LIMITED | Private company limited by shares | Dissolved |
| BLUE PLAN TECHNOLOGY COMPANY LIMITED | | Live |
| BLUE PLUS TECHNOLOGY LIMITED | Private company limited by shares | Live |
| BLUE POINT TECHNOLOGY LIMITED | Private company limited by shares | Live |
| Blue Purplish Technology Limited | Private company limited by shares | Live |
| BLUE SEA REALM TECHNOLOGY CO., LIMITED | Private company limited by shares | Dissolved |
| BLUE OCEAN TECHNOLOGY RESOURCES COMPANY LIMITED | Private company limited by shares | Dissolved |
| Blue Server Technology Limited | | Live |
| BLUE ECO SMART TECHNOLOGY COMPANY LIMITED | Private company limited by shares | Live |
| BLUE REV SOAR TECHNOLOGY LIMITED | Private company limited by shares | Live |
| Blue Map Technology Solution Limited | Private company limited by shares | Live |
| BLUE STAR TECHNOLOGY COMPANY LIMITED | Private company limited by shares | Dissolved |
| Star Blue Technology Company Limited | Private company limited by shares | Live |
| Blue Star Technology Company Limited | Private company limited by shares | Live |
| BLUE OCEAN TECHNOLOGY SYSTEM LIMITED | Private company limited by shares | Live |
| Blue Star Technology Trading Co., Limited | | Live |
| True Blue Technology Group Co., Limited | Private company limited by shares | Live |
| BLUE VIDEO TECHNOLOGY COMPANY LIMITED | Private company limited by shares | Live |