Discount Wholesalers, Inc. Return to Directory Since 1999, Discount Wholesalers, Inc. (DWI) has been a competitive leader in the Closeout industry. Website: www.discountwholesalersinc.comPhone: (800) 839.2567Supplier Category: LiquidatorsLocation: 1985 Ticonderoga Blvd, Chester Springs, PA 19425