| Company Name | Type | Status |
|---|---|---|
| W.Y.E. LIMITED | Live | |
| WYEDA TECHNOLOGY CO., LIMITED | Private company limited by shares | Live |
| WYEDALE ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| WYETH (FAR EAST) LIMITED | Private company limited by shares | Live |
| WYETH (H.K.) LIMITED | Private company limited by shares | Live |
| Wyeth (Hong Kong) Holding Company Limited | Private company limited by shares | Live |