You could have used alt_name or official_name or any one of the other name variant tags (https://wiki.openstreetmap.org/wiki/Key:name#Variants) so that each ground could be tagged with *both* names rather than the one you were searching for. Other people may search for the sponsor name.

The name of something on OSM should match how it’s signposted on the ground: https://wiki.openstreetmap.org/wiki/Key:name#Values