Spire Inc. is a regional public utility holding company based in St. Louis, Missouri. It provides natural gas service as a regulated utility; it also pursues other profit-making businesses. Its primary subsidiary, Laclede Gas Company, is the largest natural gas distribution utility in Missouri, serving about 631,000 residential, commercial and industrial customers in the city of St. Louis and ten counties in eastern Missouri. Its corporate headquarters is in the 700 Market building in downtown St. Louis.
On April 29, 2016, the company began trading on the New York Stock Exchange under the symbol SR. It had previously been known as the Laclede Group, trading under the symbol LG.Wikipedia