November 1, 2015 The Milwaukee Business Journal announced that KS Energy Services is the 34th largest private company in SE Wisconsin for the 2014 fiscal year. KS moved up 4 spots from #38 in 2013. KS Energy Services is a leading provider of services to the natural gas, electric and telecommunication industries. The company employs more than 1000 skilled crafts personnel with operating offices in Wisconsin, Illinois, Minnesota and Ohio.