| name | image | Annual visitors | type | Circulation | date founded | city | administrative división | continent | Country | Inventory | latitude (°) | longitude (°) | Website | Map |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| National Library of Wales |  | Public | 1907 | Aberystwyth | Wales | Europe | United Kingdom | 5,000,000 | 52.4000015259 | -4.0666666031 | Website | Map | ||
| National Screen and Sound Archive of Wales | Public | 1907 | Aberystwyth | Wales | Europe | United Kingdom | 5,000,000 | 52.4000015259 | -4.0666666031 | Website | Map | |||
| Royal Commission on the Ancient and Historical Monuments of Wales | | 1908 | Aberystwyth | Wales | Europe | United Kingdom | 52.4000015259 | -4.0666666031 | Website | Map |