Julien Katzenfuss

Julien Katzenfuss is a seasoned sales and operations professional with extensive experience in the life sciences and medical device industries. Currently serving as Senior Director of Sales for the Americas at Repligen Corporation since July 2025, Julien previously held significant positions at Meissner as Director of Global Sales, where revenue grew nearly sixfold, and at Sivantos Group as Global Head of Sales Excellence, driving transformative strategies across over 20 countries. With a background that includes successful roles at Sonova Group and Phonak, Julien excels in sales strategy development, team leadership, and market expansion, validated through a strong track record of delivering consistent sales growth and managing high-performing teams. Academic credentials include a degree in Business Administration with a focus on Entrepreneurship from UCLA and a Bachelor's degree in Social & Communication Sciences from the University of Lucerne.