The need for digitization and innovation in the entire construction industry is increasing, due to the changed framework conditions of today and the resulting challenges for the construction industry. More and more startups are supporting this process with technology-based solutions. The Federal Association of Digital Construction (Bundesverband Digitales Bauwesen - BDBau) is aiming to represent and promote the interests of these ConTech startups. The most important points are the networking of the startups with all actors in the construction industry, the presentation of best practice examples and the creation of transparency on the topic of ConTech.