SPS Companies service centers are strategically located throughout the Midwest to service our customers'​ needs. On-time delivery and our unmatched size and depth of inventories are two major factors that separate us from our competition.Now extended throughout the Midwest, our services include four full-service warehouses; cut-to-length flat roll and temper operations; a tube and pipe manufacturing facility at EXLTUBE; Galvanized distribution with TubularUSA; and two comprehensive processing facilities.