Meet Martin Sion, Alstom CEO — Bio + How to Reach Out

Last updated: 2025-12-13

Who is Martin Sion?

Martin Sion is a French aerospace and transportation executive appointed as CEO of Alstom, effective April 1, 2026. He has extensive experience in aerospace, having held leadership roles at Safran Aircraft Engines, ArianeGroup, and other aerospace companies. Sion has a background in engineering and management, with degrees from École Centrale de Paris.

Martin Sion's Work History

Martin Sion has a distinguished career in aerospace and transportation industries, serving in executive roles at Safran, ArianeGroup, and Aircelle. He was appointed CEO of Alstom in 2025, succeeding Henri Poupart-Lafarge, and is known for his technical expertise and leadership in high-tech sectors.

• 2010 - 2013 - Head of Space Engines Division, Snecma
• 2013 - 2015 - CEO, Aircelle
• 2015 - 2020 - Chairman of Safran Electronics & Defense, Safran
• 2023 - CEO, ArianeGroup

Martin Sion's Education

Martin Sion graduated from École Centrale de Paris and completed a spell at Sandia National Laboratories. He has held various engineering and management roles in aerospace companies, focusing on propulsion and satellite systems.

• École Centrale de Paris - Engineering Degree (1986 - 1990)
• Sandia National Laboratories - Research Internship (1990 - 1991)

How to Reach Martin Sion?

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