Missouri State Of--economic Development Dept Of, Public Service Commission, Utility Complaints 1845 Borman Ct Saint Louis, MO 63146 Phone : (314) 340-4680 Business Category Government Offices-State Government Offices State & Local Government Offices & Public Schools Public Service Commission 815 Charter Commons # 100b Chesterfield, MO 63017 Phone : (314) 340-4680 Business Category Regulation & Admin Of Communications Electric Gas & Other Utilities