The TOPWERK GROUP is the world's leading supplier of machines and plants for industrially manufactured concrete products. The holding company unites the renowned brands HESS GROUP, SR SCHINDLER and PRINZING PFEIFFER under one strategic roof. Numerous sales and service locations all over the world guarantee proximity to customers. The portfolio includes machines and plants from producing concrete and hermetic slabs to dosing and mixing plants, packaging and conveying technologies, finishing plants and the manufacture of pipes and manholes.