Fox River Socks [1], which is a sock factory in my home town. Up until a year or two ago it was locally owned. The owner sold it to a larger holding company though. I think they still have a fair amount of local control though.
Faribault Woolen Mill [2], a maker of wool blankets in southern Minnesota, about an hour and a half from where I grew up.
To throw in a third, we made our own bed ~6 years ago out of wool batting from Shepherd's Dream [3], which is an Oregon-based wool seller. We are actually planning to order more this week to make another for our kids.
This is especially true of wool.