Monday, December 22, 2025
In an action that foreshadows both continuity and a progressive change for the upcoming ten years of “green” displays, Koelnmesse Inc. has announced that Darrin Stern will become President and Managing Director, effective January 1, 2026. Stern succeeds Mette Petersen, a titan of the trade show industry who is set to retire on June 30, 2026, after 22 years of transformative leadership.
Petersen’s tenure has been defined by more than just square footage and profit margins. Under her guidance, the North American subsidiary of the Cologne-based global giant became a beacon for sustainable event management, consistently aligning with Koelnmesse’s overarching goal of achieving a climate-neutral energy supply by 2030.
Since 2003, Mette Petersen has been the architect of Koelnmesse’s presence in one of the world’s most competitive exhibition markets. Her highlights include:
Market Expansion: Successfully launching three major trade events in North America, including the highly acclaimed h+h Americas.
Industry Accolades: Securing multiple Fastest 50 and Gold 100 recognitions from Trade Show Executive.
Strategic Partnerships: Deepening ties between the Chicago-based office and the German headquarters, ensuring a seamless bridge for international exhibitors.
Reflecting on her journey, Petersen stated:
“It has been the honor of my career to lead Koelnmesse Inc. We’ve built a powerhouse team and a resilient foundation. I leave with full confidence that we are positioned not just for growth, but for a future where events are more dynamic and ecologically responsible.”
Incoming President Darrin Stern is no stranger to the Koelnmesse ethos. With a 22-year tenure of his own, Stern most recently served as Vice President of Business Development and Show Director for h+h americas and the Fiber+Fabric Craft Festival.
Stern takes the helm at a pivotal moment. As the global events industry pivots toward the circular economy, his leadership will be instrumental in deploying Koelnmesse’s latest sustainability innovations in the North American market. These include:
Carbon-Neutral Logistics: Expanding the use of digital tools like the CHEQ app, which allows visitors to calculate and mitigate their carbon footprint.
Resource-Efficient Exhibits: Promoting modular, reusable stand construction and circular flooring materials to minimise the waste typically associated with large-scale trade shows.
Green Energy Integration: Leveraging the parent company’s investment in fossil-free geothermal energy and massive photovoltaic systems to set a standard for domestic events.
Gerald Böse, President and CEO of Koelnmesse GmbH, praised the transition:
“Mette has been an incredible ambassador for our global growth. With Darrin, we have a leader who knows our business inside and out and shares our commitment to reconciling ecological responsibility with economic success.”
The leadership handover is part of a “future-ready” roadmap that extends through 2035. Under Stern’s presidency, Koelnmesse Inc. is committed to several key pillars of growth:
1. Portfolio Diversification
Expanding the “Koelnmesse family” into emerging North American sectors, particularly those focused on clean technology, sustainable food systems, and advanced manufacturing.
2. Enhanced “USA Pavilions”
Strengthening the platform for American exhibitors to enter global markets with a focus on sustainable supply chains and international ESG compliance.
3. Digital-Physical Hybridity
Integrating AI-driven matchmaking and IoT-enabled venue management to reduce energy consumption while maximizing the ROI for attendees.
4. Social and Community Impact
Deepening the “locally driven” approach to event planning, ensuring that North American shows benefit local economies and adhere to fair labor and inclusivity standards.
The retirement of Mette Petersen marks the end of an era, but the appointment of Darrin Stern suggests that Koelnmesse is doubling down on its “pioneer in sustainability” status. For the sustainable event management sector, this transition is a clear indicator that the world’s largest organizers are moving beyond “greenwashing” toward tangible, data-driven environmental stewardship.
As work begins on the first quarter of 2026, the trade show community will be watching closely as Stern implements his vision for a more “dynamic and future-ready” Koelnmesse Inc.
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Tags: carbon-neutral events, circular economy events, green trade fairs, Koelnmesse Inc., North American exhibitions, sustainable event management, trade show industry news
