Koelnmesse Inc. Maps Next Growth Phase as Darrin Stern Succeeds Mette Petersen in North America
SHERIDAN, WYOMING - December 10, 2025 - Koelnmesse Inc. is initiating a carefully planned leadership transition in North America, with long-time President and Managing Director Mette Petersen set to retire on June 30, 2026, and 22-year company veteran Darrin Stern taking over the top role on January 1, 2026. The structured handover is designed to safeguard continuity while positioning the U.S. subsidiary for its next decade of portfolio growth and international expansion.
Structured transition protects continuity and relationships
From 1 January 2026, Stern will assume the role of President and Managing Director, while Petersen will continue through the first half of the year in an advisory capacity. During this period she will mentor key team members and support strategic initiatives with Koelnmesse's headquarters in Cologne, Germany.