It can get the info from various places - eg Wikipedia, imdb, Google+ business pages. Usually external sources will be credited, so you can see if you can copy.
If your business is local, then it is certainly worth using Google with Places for Business so it appears on the map.
That appears to be what the one in your example are doing.
It won't always appear on the right hand side, but means your company may still appear on map searches, and also may help if people are doing local searches.
PS DON'T spam Wikipedia. If you are big enough, someone else will create an unbiased page for you. If you are a small company, you will be taken down by the moderators as not relevant.