Company Profile

We create technology to transform the everyday for everyone

Today, transport providers face multiple challenges to move more people and goods on tracks. At Siemens Mobility, we enable our customers worldwide to realize sustainable mobility solutions. As a leading technology company, we combine the real and digital worlds like no other in rail. In an open ecosystem, we bring together rolling stock, rail infrastructure, rail services, and software to provide sustainable, comfortable, and cost-effective rail traffic today. Together with our customers and partners, we move people and goods seamlessly and transform mobility for everyone.

Allowing digitalization to thrive

Digital transformation is the key to future proof rail transport. With our four technological levers of optimized lifecycle costs for rail infrastructure, 100% system availability, maximized network capacity and, optimized customer experiences and processes, we provide sustainable, comfortable and cost-effective rail travel. Our open digital business platform Siemens Xcelerator is the driving force for enabling digital transformation by connecting different transport players, moving software to the cloud on one open digital business platform using APIs to unleash the full potential of available data. To our customers we provide the digital value propositions to maximize network capacity, guarantee 100% system availability, and reach up to 100% occupancy.
How Siemens Xcelerator is transforming the mobility sector.
How Siemens Xcelerator is transforming the mobility sector.

U.S. Leadership

Our management shares the same passion for mobility as our 4,500 employees in the U.S.
Tobias Bauer portrait

Tobias Bauer

Managing Director, Siemens Mobility North America

Effective December 1st 2025, Tobias Bauer assumed the role of Managing Director for Siemens Mobility North America. In this capacity, he provides strategic oversight for the company's operations and growth across the United States and Canada, a region comprising over 4,500 employees and more than 30 facilities.

Concurrently with his Managing Director duties, Mr. Bauer also holds the position of President of Rolling Stock, North America. In this capacity, he leads a team of over 2,500 professionals dedicated to the development, production, and deployment of innovative rolling stock solutions.

Since joining Siemens in 2004, Mr. Bauer has advanced through several pivotal leadership roles, notably as Head of Rail Infrastructure for North America. His extensive global career includes strategic assignments in Europe, India, Boston, New York, and currently Sacramento, California. His tenure has consistently yielded enhanced project delivery and elevated customer satisfaction, underpinned by his unwavering commitment to excellence, transparent communication, and sustainability principles.

Mr. Bauer holds a BS degree in Business Information Systems from the University of Applied Sciences, Ingolstadt, and an MBA from Columbia Business School, New York. As a recognized leader in the rail industry for over a decade, he remains a steadfast champion of Siemens Mobility’s mission to deliver safe, reliable, and sustainable transportation solutions.
Tobias resides in Sacramento, California

Bernd-Blumenstein

Bernd Blumenstein

Finance Director, Siemens Mobility North America

Bernd Blumenstein is the Finance Director for Siemens Mobility North America. He is responsible for overseeing the financial operations and implementing processes and standardizations to help unify and strengthen the business organizations within Siemens’ largest market in the world.

Blumenstein started his twenty-year global career at Siemens as a Senior Commercial Project Manager, managing large infrastructure projects across the United States and Norway. He is an expert in optimizing costs and setting financial targets as the former Vice President of Finance for Siemens Mobility’s global Rail Electrification business segment headquartered in Erlangen, Germany, Finance Director for Siemens Mobility Spain and the South-West Europe region, and Vice President of Finance for Siemens Mobility’s global business segment Mass Transit based in Braunschweig, Germany.

Blumenstein's passion for mobility and digitalization brings an exciting perspective to our North American team. He received his state-certified Business Economist (BBA) in Marketing from the Wolfenbuttel School of Business.