SPRING GROVE – Governor Bruce Rauner praised Spring Grove-based Scot Forge, an open die and rolled ring foraging company celebrating its 125th anniversary in 2018. Rauner toured the 350,000-square-foot manufacturing facility Friday morning. Scot Forge is an employee-owned business with plants in Wisconsin, Illinois, Pennsylvania and Michigan. The company works in numerous markets including aerospace, infrastructure, mining and defense, according to its website. State Sen.