Marcus Welz leads the Siemens Intelligent Traffic Systems business in the U.S. The company offers advanced software and systems to modernize and improve urban and interurban traffic. In this role, Welz manages all functions including sales, R&D, product management, customer service and drives strategic business direction.

On November, 2018, Welz was also named as CEO of Bytemark, Inc. Joining Siemens in 2001, Welz progressed through a number of management roles throughout Europe and the United States. Prior to his current position, Welz served as Senior Vice President and Head of Global Sales & Project Management at Siemens AG, headquartered in Munich.

Welz holds a Business Administration degree from Munich University of Applied Science and a Master of Science Degree in Energy Engineering from Karlsruhe Institute of Technology.