What Does The Merger of Votsch and Weiss Mean For You. After the consolidation of Vötsch and Weiss in 2017 the decision has finally been made to merge Weiss Umwelttechnik GmbH and Vötsch Industrietechnik GmbH to become Weiss Technik GmbH. This is just a change of name, all processes, products and contents remain the same. […]