According to wikipedia, only two are privatized: http://en.wikipedia.org/wiki/O...
This particular prison mentioned in the article is not privatized: http://www.drc.ohio.gov/public...
Here is an example of a page according to the ohio gov site that shows one that is privatized (it says privately operated near the address): http://www.drc.ohio.gov/public...
The obvious other example is in sports---is there any sport which has a professional league where a substantial number of amateurs are seriously competitive? I'm unaware of any. In fact, professional sports teams are enormously better than even the best amateur clubs.
I think you will want to look at the National Collegiate Athletic Association (NCAA). Specifically, take a look at football, basketball, maybe even baseball. I'm usually hesitant to call the college football and basketball amateur, but they are generally considered still amateurs. In the article below, 40+ athletes were drafted to the pros. Most of these draftees contribute to the team by the very next year, some star. Ohio State has had the most players drafted from a single team at 17. http://www.sbnation.com/nfl-mock-draft/2013/4/27/4275658/2013-nfl-draft-results-breakdown-college
I can't help agree with a poster above, who recommended the Ken Robinson video.
I also wanted to add that I think the way that our modern education system works has a lot to do with parents seeking a diagnosis for little Bobby "who just can't sit still".
I used to work in the environmental education field for quite a few years. I can say that I loved to have kids with "ADHD" in my group, because they were the ones turning over rocks and logs and activity searching for things. What is seen as a detriment in one setting, seemed to be an advantage in another setting.
An interesting thing to note is often how I would find out about their conditions. Since I did do some work at overnight facilities, I would sometimes would be told ahead of time medications and conditions a child had. But most of the time, I found out about it by a teacher saying something like: You know, so-and-so has a ADD/ADHD and he is just doing SO well out here.
I tend to find that I am usually a good 10-15 miles per hour faster than the recommended. Apparently, the enforceable speed limit on exit ramps/bends is the same as the road.