Founded in 1923 by Kasimir Janiszewski, Superior Die Set Corporation is a manufacturer of die sets, mold bases, pins/bushings, three platen presses, cut-and-ground machined plate, fabrications and forging products. Still operated by the Janiszewski family in the 4th generation, Superior Die set has several manufacturing facilities, warehouses and distribution with the capability to serve a global market. In 2023 we are celebrating 100th year serving the die and mold building industries!