You're going to have to check all profiles to find them all. Good luck 
Fortunately, the OP has plenty of time to move in that direction, although I doubt he would ever succeed in it, considering that he very often asks this kind of pointless type of question instead of looking for the answer himself.
Aren't those personal badges only temporary?
If we talk about some forum contests, it seems to me that the winner keeps the badges permanently, and the others get them temporarily, while for some other badges the status is permanent.
@gmaxwell has a badge called "Bitcoin expert" and there is no doubt that it is something permanent, although I have to admit that @achow101 seems to have had a badge in the past that I can't see now (Bitcoin-Qt core developer). It is possible that (like some other things) badges can be removed on request.