Alstom has completed its previously announced leadership transition, with Martin Sion taking over as Chief Executive Officer from 1 April 2026.
Sion succeeds Henri Poupart-Lafarge, who led the company for a decade and oversaw a period of significant expansion, including the integration of Bombardier Transportation, which strengthened Alstom’s global position in the rail sector.
The appointment follows earlier plans communicated in 2025, marking a continuation rather than a sudden shift in leadership at one of the world’s largest rail suppliers.
Sion joins Alstom from ArianeGroup, bringing experience in leading large industrial organisations. His mandate comes at a time when rail manufacturers are facing growing demand linked to decarbonisation, digitalisation and network expansion across global markets.
Under Poupart-Lafarge, Alstom’s revenues grew from around €6 billion to €18.5 billion, reflecting both organic growth and consolidation within the rail industry.
From a rail perspective, the leadership change comes as the sector enters a new phase focused on capacity expansion, sustainable mobility and technological innovation, with major suppliers expected to play a central role in delivering large-scale projects across Europe and beyond.
The transition signals continuity in strategy, with Alstom aiming to build on its position as a key supplier of rolling stock, signalling and integrated rail systems.
