| XINDU SUSTAINABLE HENGTONG LIMITED | Private company limited by shares | Live |
| YUPA SUSTAINABLE NEW MATERIALS CO., LIMITED | | Live |
| ZhongHeng Sustainable Development Co., Limited | Private company limited by shares | Live |
| THE SUSTAINABLES LIMITED | | Live |
| Please Drink Sustainably Hong Kong Limited | Private company limited by shares | Live |
| SUSTAINASIA LIMITED | Private company limited by shares | Live |
| SustainAsia (Hong Kong) Limited | | Live |
| Marine Sustainature Limited | Private company limited by shares | Live |
| SustainComm Limited | Private company limited by shares | Live |
| SUSTAINED ADVISORY LIMITED | Private company limited by shares | Live |
| Sustained Direct Limited | | Live |
| Sustainergy Capital Limited | Private company limited by shares | Live |
| Sustainergy Power Solutions Limited | | Live |
| SUSTAINOMICS GROUP LIMITED | Private company limited by shares | Live |
| AG SustainReport Consulting Limited | Private company limited by shares | Live |
| GREEN SUSTAINS LIMITED | Private company limited by shares | Live |
| SustaInt Limited | Private company limited by shares | Live |
| HK SUSTANO GROUP LIMITED | Private company limited by shares | Live |
| Win Sustenance Limited | Private company limited by shares | Live |
| SUSTENCO HOLDING LIMITED | Private company limited by shares | Dissolved |
| Yautica Sustianable Development Limited | | Live |
| SUSTLIGHT LIMITED | Private company limited by shares | Live |
| SUSTON LIMITED | Private company limited by shares | Dissolved |