@elyw would it not make more sense to just use an existing directory like ROR/GRID? That has almost 100.000 research organisations and most institutes are in there already. Then all you need to do is adding the institute identifier (ROR ID) to the collection descriptions and you have a list of institutes with their collections. Up to date information like the institute name, acronym, location and website is then provided as well as links to e.g. wikidata and wikipedia that can provide additional information about the institute.