Siân Herbert-Jones is Member of Institute of Chartered Accountants in England & Wales, Member of Hong Kong Institute of Certified Public Accountants and Member of Sodexo Women'S International Forum for Talent and on the board of 10 other companies.

She previously occupied the position of Chief Financial Officer of Sodexo SA Chairman at Sofinsod SAS, Chairman at ETIN SAS, Chairman at Sodexo Etinbis SAS, Member-Management Board at Sodexo Pass International SAS, Member-Supervisory Board & Management Board at One SAS, Member-Management Board at Sodexo en France SAS, Member-Management Board at Sodexo Entreprises SAS and Treasurer & Director at Sodexo Remote Sites USA, Inc. (which are all subsidiaries of Sodexo SA), Member-Supervisory & Management Board at One SCA, Finance Manager at PricewaterhouseCoopers LLP (United Kingdom), Partner at PricewaterhouseCoopers LLP and Manager-Mergers & Acquisitions at PricewaterhouseCoopers Afrique.

She received a graduate degree from the University of Oxford.