There's nobody I know of directly in the fox valley/appleton area. Pechauer's already been listed, Jacoby is about an hour from Appleton to the west, in Nekoosa. I hope to be added to the list eventually, but right now I'm just a wannabe making wood thinner whilst I gain my experience.
The McDermott factory is in Menomonie Falls, which is slightly north of Milwaukee. Relatively close to Appleton, also about that hour's drive.