I'm the owner of the company Wooly Pigs, the main producer of Mangalitsa pigs in America. Wooly Pigs raises Mangalitsa pigs in Missouri. Swiss Meat and Sausage Company in Swiss Missouri process them, as shown here:
Please note that the breed is spelled "Mangalitsa". That rhymes with pizza. There is no "list" in "Mangalitsa".
Jimmy Fiala's restaurants in St. Louis have bought quite a bit. Monarch Restaurant in St. Louis has also bought some. Debbie Gold, at the American Restaurant in Kansas City has bought half a pig before.
There are probably some other Missouri customers; those are just the ones I know about.