Thomas Leysen is the former chairman of the board of directors of dsm-firmenich. He retired from the chair and from the board in October 2026 following the election of his successor, having led the board through the creation and early integration of the combined group.
Facts compiled by Executive Moves from publicly available news and press releases on 21 October 2026. Spotted an inaccuracy? Email us and we'll review within 1 business day.
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