| ELSTAFF LIMITED | Private company limited by shares | Dissolved |
| Elstar C&S Limited | Private company limited by shares | Live |
| ELSTAR ELECTRONIC CO., LIMITED | Private company limited by shares | Dissolved |
| ELSTAR ELECTRONIC CO., LIMITED | Private company limited by shares | Live |
| ELSTAR INDUSTRIAL LIMITED | Private company limited by shares | Dissolved |
| ELSTAR INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| ELSTAR (HK) TECHNOLOGY LIMITED | Private company limited by shares | Live |
| ELSTEAD MANUFACTURING COMPANY LIMITED | Private company limited by shares | Dissolved |
| Elston United Limited | Private company limited by shares | Live |
| ELSTONE CAPITAL LIMITED | Private company limited by shares | Live |
| ELSTRESS MANUFACTURING LIMITED | Private company limited by shares | Dissolved |
| ELSTRO COMPANY LIMITED | Private company limited by shares | Dissolved |