Point is still independently owned, and produced in the fifth-oldest brewery in the country. They give great tours if you're ever in Stevens Point. I believe the others you mentioned are owned by mega-corporations, although Schlitz has recently been reformulated in an effort to get back to its roots.
Another smaller, old-style beermaker is Huber, in Monroe, Wisconsin. Although it was sold to a Canadian company a few years ago, it's still a small brewer with a lot of history. Huber Bock is a very good beer - worth seeking out. Other brands there are Rhinelander and Old Wisconsin. They're also known for making Berghoff beers, but I think that's a contract brewing relationship (if I'm wrong, feel free to correct me).
Also, not exactly fitting the model you're asking about, is City Brewing, which bought the old Heilemann brewery in LaCrosse, and produces LaCrosse Lager, which until recently was the only fully krauesened beer on the market (Old Style, which was known for being krauesened, went to conventional carbonation when it was purchased by Pabst and production was pulled out of LaCrosse; like Schlitz, its parent has recently reformulated it, so it is again fully krauesened).