Sian has held a wide range of non-executive roles across fashion, beauty and retail, including the holding company of Augustinus Bader Skin Care, Lyma Life Limited, Lane Crawford Joyce Group in Hong Kong, Anya Hindmarch, Nicholas Kirkwood, Roksanda and FaceGym. She brings deep understanding of brand, product, customer experience and international expansion, particularly in premium and luxury segments, and is experienced in supporting founders and leadership teams through growth, investment and succession.

Alongside her board roles, Sian is a Senior Adviser in the Global Advisory Division at Rothschild & Co in London, having spent much of her full-time career with the firm after qualifying as a solicitor at Slaughter and May. This background gives her a strong grounding in corporate finance, strategic transactions and stakeholder management, which she applies pragmatically in the boardroom. She also sits on the European Advisory Board of Brown Advisory, the US-based wealth management business.

Sian is deeply engaged in the arts and creative sectors. She is a Non-Executive Director of the British Fashion Council, a Trustee of The Barbican Centre Trust and a member of the Corporate Advisory Group of the Royal Academy of Arts. Her previous roles include Trustee of the Royal Academy of Arts Trust for ten years, membership of the Advocates Board of the Royal Court Theatre, two full terms on the Board of English National Ballet and Chair of its Development Committee.