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Air Liquide
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Engineering & Construction


Large projects


Siân Herbert-Jones

Independent Director

Born in 1960 - British nationality

Date of first appointment: 2011
Start of current term: 2019
End of current term: 2023


Holder of a Master of Art degree in History from Oxford University and a graduate from the Institute of Chartered Accountants in England and Wales, Siân Herbert-Jones first practiced for 13 years with the firm of PriceWaterhouseCoopers, in the London office from 1983-1993 in particular in the capacity of Corporate Finance Manager, then in the Paris office from 1993 to 1995 in the capacity of Mergers & Acquisitions Manager. She then joined the Sodexo Group in 1995 in which she was successively in charge of international development from 1995 to 1998 and the Group’s Treasury Department from 1998 to 2000 then Deputy Chief Financial Officer in 2000. From 2001 to December 21, 2015, she was Chief Financial Officer; and member of the Executive Committee of the Sodexo Group. Since 2016, she holds several positions within Board of Directors of large companies and also pursues other consulting activities in societal and environmental fields.

Positions and activities

Functions within the Air Liquide Group

  • Director: L’Air Liquide S.A.*
  • Chairman of the Audit and Accounts Committee

Positions or activities outside the Air Liquide Group

  • Director: Cap Gemini SE* (member of the Audit and Risks Committee), Bureau Veritas* (member of the Audit and Risks Committee), Compagnie Financière Aurore Internationale (Sodexo Group - Belgium)

(*) Listed companies are indicated by an asterisk.