Culver's is a franchise restaurant best known for its ButterBurger made from Midwest-raised beef and fresh frozen custard, which is made from real Wisconsin dairy from local farms. The casual restaurant also serves other items such as sandwiches, salads, Wisconsin cheese curds, shakes, sundaes, and malts. The very first Culver's was opened more than 25 years ago in Sauk City and has since grown to include more than 300 locations, which are mainly concentrated in the Midwest with some in Texas, Arizona, Colorado, South Carolina, among other states.