Similar to this question here: (https://webmasters.stackexchange.com/questions/61824/wikipedias-effect-on-google-seo) but a bit different.
I recently noticed that on the main listing for some companies have a grey drop down option right next to their green URL. When you click it, the box usually displays a one sentence summary of a company taken from Wikipedia.
Is this dropdown generated by the Knowledge Graph or something else?
I've seen it on listings of companies with fully filled out Knowledge Graphs and on listings with nothing in the Knowledge Graph right bar.