I've noticed this a couple of times, recently just now, I did a search for a local company and the first result was what seemed to be a place holder google plus page for this company. It's a page that looks like it was created by google with a button on it that says "is this your business? Manage this page". This business does not have a website but they do have a facebook page which is listed in the #4 spot.
Seems like a shady practice if google is trying to promote plus by creating fake business listing and then promoting them in the serps.
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[edited by: brotherhood_of_LAN at 11:06 pm (utc) on May 11, 2015]
[edit reason] Added a screenshot [/edit]