I worked with someone who told me about a hiring strategy he encountered at a former employer. HR came across some study that showed that people with high IQs were the most likely to have personnel issues (or didn't work as well on a team, or something like that). So they decided to avoid these personnel problems by giving job candidates IQ tests and only hiring those with IQs that weren't above the company's mean IQ. I kid you not.
I've heard this story, but I can't find any evidence for "regularly". (I'm also not sure what form such evidence would take.)
The highest profile case I can find is of Robert Jordan, of New London, CT, who sued for discrimination because his job application was rejected for scoring too high [sic] on the IQ test. (He lost.) (http://www.nytimes.com/1999/09/09/nyregion/metro-news-briefs...)
It appeals to my own personal prejudices, but it was also 10+ years ago.