St. Louis direct from Wikipedia—”A “Gamma” global city with a metropolitan GDP of more than $160 billion in 2017,[12] metropolitan St. Louis has a diverse economy with strengths in the service, manufacturing, trade, transportation, and tourism industries. It is home to eight Fortune 500 companies. Major companies headquartered or with significant operations in the city include Ameren Corporation, Peabody Energy, Nestlé Purina PetCare, Anheuser-Busch, Wells Fargo Advisors, Stifel Financial, Spire, Inc., MilliporeSigma, FleishmanHillard, Square, Inc., U.S. Bank, Anthem BlueCross and Blue Shield, Federal Reserve Bank of St. Louis, U.S. Department of Agriculture, National Geospatial-Intelligence Agency, Centene Corporation, and Express Scripts.”