A packed stadium, Robbie Williams on stage, “Let me entertain you” – and a strong statement on sustainability: With the Loop Cup, a durable reusable cup for large events, Bartenbach brought the DVAG's 50th anniversary celebration in Frankfurt into line with environmentally conscious event management. 100% recyclable, free of harmful substances, and made in Germany, over 10,000 of the dishwasher-safe cups were collected after the concert, cleaned, and reused. The result is a tangible example of sustainable employer branding – practical, visible, and with a real impact.