Waldemar Zeiler is an unrelenting world changer, father, entrepreneur, activist, speaker, aspiring actor, and author. He is the founder of Ding Dong Ping Pong, a community-driven ping pong brand, and einhorn, a company known for its eco-friendly, ethical condoms and period products. einhorn is committed to sustainability, social responsibility, transparent supply chains, and new ways of working. Waldemar is also the founder of zweihorn, an initiative focused on redefining business through positive impact.