| GERMANY FOST (CHINA) LIMITED | Private company limited by shares | Live |
| Hong Kong Fostal Trade Co., Limited | Private company limited by shares | Live |
| FOSTAR LIMITED | Private company limited by shares | Live |
| FOST-CHINA CO., LIMITED | Private company limited by shares | Dissolved |
| Foste Limited | Private company limited by shares | Live |
| FOSTE TECHNOLOGY CO., LIMITED | | Live |
| FOSTER COMPANY LIMITED | Private company limited by shares | Dissolved |
| FOSTER LIMITED | Private company limited by shares | Dissolved |
| FOSTER HK LIMITED | Private company limited by shares | Live |
| FOSTER LIMITED | Private company limited by shares | Live |
| FOSTER ADVERTISING COMPANY LIMITED | Private company limited by shares | Dissolved |
| WISE LEADERSHIP FOSTER COLLEGE LIMITED | Private company limited by shares | Dissolved |
| Foster Education Limited | Private company limited by shares | Live |
| FOSTER ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| FOSTER GROUP LIMITED | Private company limited by shares | Live |
| A FOSTER HIGGINS & COMPANY LIMITED | Private company limited by shares | Dissolved |
| FOSTER INFRASTRUCTURE LIMITED | Private company limited by shares | Live |
| FOSTER INVESTMENT LIMITED | Private company limited by shares | Live |
| Foster Mass Innovation Limited | Private company limited by shares | Live |
| Roggs & Foster Limited | Private company limited by shares | Live |
| FOSTER SHIPPING COMPANY LIMITED | Private company limited by shares | Live |
| FOSTER TALENT LIMITED | Private company limited by shares | Live |
| Talent Foster Limited | | Live |
| TOBY FOSTER ENTERPRISE LIMITED | Private company limited by shares | Live |
| FOSTERA LIMITED | Private company limited by shares | Live |
| FOSTER-COMER LIMITED | Private company limited by shares | Live |
| FOSTERIA SOLUTION LIMITED | Private company limited by shares | Live |
| FOSTERICH LIMITED | Private company limited by shares | Dissolved |
| Fostering Africa's Rise Capital Limited | | Live |
| FOSTERLINK LIMITED | Private company limited by shares | Live |
| FOSTERS COMPANY LIMITED | Private company limited by shares | Dissolved |
| FOSTON LIMITED | Private company limited by shares | Dissolved |
| FOSTON LIMITED | Private company limited by shares | Live |
| FOSTON INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| FOSTONN ELECTRONICS TECHNOLOGIES (HK) CO., LIMITED | Private company limited by shares | Dissolved |
| FOSTORIA COMPANY LIMITED | Private company limited by shares | Dissolved |
| FOSTORIA ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| FOSTORIA INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| Fostron Electronics Limited | Private company limited by shares | Live |