On 19.09.2023 the central company party for all employees took place in Witzenhausen in the Steinstraße. The organizer was the staff council of the University of Kassel.  It was a colorful program with music, organic food and drinks, interesting tours and visits (laboratories, tropical greenhouse, ...), brick trekking, child care and much more. The Green Office was there with the HörBar and SichtBar and presented the activities of the three new institutions in the field of sustainability (Kassel Institute for Sustainability, SDG+Lab, Green Office).