Many events have lots of sponsors in order to make them a success. Many events are supported by sponsors, generally financially and in return ask for advertising and promotion at an event or through the events media - website, Facebook, flyers etc.
It would be great if you could add sponsors to the single event page, with the sponsor name, logo and weblink.
Dodge County Fair commented
Probably more like Organizers so more than one can be added per event. (There's a feature request for multiple Venues per event but it's not current functionality.)
Dovid Levine commented
Could see this working like 'venues', just you can choose several, and have them displayed as suggested by the OP.
Would definitely save time of having to re-upload info for an organization's major recurring sponsors