| Name | Location | County | Country | Power source | Type | Function | River |
| Pendre Factory, Llanbadarn Fawr | Llanbadarn Fawr | Cardiganshire | United Kingdom | Water | Watermill | Woollen mill | Rheidol |
| St Mary's Mill, Aberystwyth | Aberystwyth | Cardiganshire | United Kingdom | Steam, Water | Watermill | Corn mill | Rheidol |