| Name | Location | County | Country | Power source | Type | Function | River |
| Factory Isaf, Abercegir | Abercegir, Glantwymyn | Montgomeryshire | United Kingdom | Water | Watermill | Woollen mill | Gwydol |
| Factory Uchaf, Abercegir | Abercegir, Glantwymyn | Montgomeryshire | United Kingdom | Water | Watermill | Woollen mill | Gwydol |
| Fulling mill, Abercegir | Abercegir, Glantwymyn | Montgomeryshire | United Kingdom | Water | Watermill | Fulling mill | Gwydol |
