This picture was taken in a teacher's lounge inside a high school in Wausau, WI. It identifies Wisconsin companies the unions accuse of supporting Gov. Scott Walker (h/t Gateway Pundit):
I used to work for one of those companies - Church Mutual, based in Merrill, WI. I don't remember them being particularly political, but I never really saw their political activities in Wisconsin.
Given how few of the most activist union teachers actually attend church, I doubt it will be much of a threat to their business.