Martin Sion

Chief Executive Officer at ALSTOM

58 year

Electronic Technology

Producer Manufacturing

Consumer Services

Profile

Martin Sion is currently Chief Executive Officer at Alstom SA since 2026, Chief Executive Officer at ArianeGroup SAS since 2020, Chairman at Safran Electronics & Defense SAS since 2023, and Director at ArianeGroup Holding SAS since 2020.
Formerly, Mr. Sion was Chief Executive Officer at ArianeGroup GmbH from 2023 to 2026, Head of the Space Engines Division at SNECMA SA, and Chief Engineer at Société Européenne de Propulsion.
Education includes an undergraduate degree from École Centrale Paris, conferred in 1990.

Latest news about Martin Sion

19/05	Alstom buoyed by Oddo BHF
13/05	Alstom profit steady as execution issues persist	RE
16/04	Alstom unveils record orders but profitability remains under pressure as new CEO sounds the alarm

Martin Sion active positions

Companies	Position	Start
ALSTOM	Chief Executive Officer	01/04/2026
Safran Electronics & Defense SAS Safran Electronics & Defense SAS Aerospace & DefenseElectronic Technology Manufactures optronic, avionics and electronics products for civil, military and space markets	Chairman	17/06/2015
ArianeGroup Holding SAS ArianeGroup Holding SAS Financial ConglomeratesFinance Functions as an investment holding company	Director/Board Member	27/05/2020
ArianeGroup SAS ArianeGroup SAS Aerospace & DefenseElectronic Technology Designs launch systems that offers civil and military space solutions for institutional, commercial & industrial customers	Chief Executive Officer	12/04/2023

All active positions of Martin Sion

Former positions of Martin Sion

Companies	Position	End
ArianeGroup GmbH ArianeGroup GmbH Aerospace & DefenseElectronic Technology Manufactures aircraft, defense and communication equipment	Chief Executive Officer	01/04/2026
SNECMA SA SNECMA SA Aerospace & DefenseElectronic Technology Manufactures aircraft and rocket engines	Corporate Officer/Principal	-
Société Européenne de Propulsion Société Européenne de Propulsion Aerospace & DefenseElectronic Technology Provides services and engineering related to turbines	Chief Tech/Sci/R&D Officer	-

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Linked companies

Private companies	8
Alstom SA Alstom SA Trucks/Construction/Farm MachineryProducer Manufacturing Manufactures equipment for transmission and distribution of electric power	Producer Manufacturing
SNECMA SA SNECMA SA Aerospace & DefenseElectronic Technology Manufactures aircraft and rocket engines	Electronic Technology
Société Européenne de Propulsion Société Européenne de Propulsion Aerospace & DefenseElectronic Technology Provides services and engineering related to turbines	Electronic Technology
Safran Electronics & Defense SAS Safran Electronics & Defense SAS Aerospace & DefenseElectronic Technology Manufactures optronic, avionics and electronics products for civil, military and space markets	Electronic Technology
École Centrale Paris École Centrale Paris Other Consumer ServicesConsumer Services Functions as a College/University	Consumer Services
ArianeGroup SAS ArianeGroup SAS Aerospace & DefenseElectronic Technology Designs launch systems that offers civil and military space solutions for institutional, commercial & industrial customers	Electronic Technology
ArianeGroup GmbH ArianeGroup GmbH Aerospace & DefenseElectronic Technology Manufactures aircraft, defense and communication equipment	Electronic Technology
ArianeGroup Holding SAS ArianeGroup Holding SAS Financial ConglomeratesFinance Functions as an investment holding company	Finance