Under the theme: Enzymes – Nothing works without them, represented André, CASCAT in a lecture series at the German Biotechnology Days 2019 at the 10th of April in Würzburg. Together with the companies C-Lecta (Marc Struhalla) and Novozyems (Klaus Pellengahr), as well as Prof. Dr. med. Jürgen Seibel (University of Würzburg) the experts presented and discussed the need and opportunities for the industrial establishment of novel enzyme reactions and cascades. Moderated by Andreas Löffert (Biocampus Straubing GmbH), this was an extremely exciting lecture series on the potential of enzymatic reaction cascades for industrial applications. It turned out that multi-stage enzyme cascades are gaining ground and gaining more and more profitability in order to replace established processes in the market, or even to establish new processes. Thus, we continue to be at the forefront of development with the philosophy of CASCAT.