Diane Seymour-Williams
InvestorAffiliate; Investments at Acorn Capital Advisers
London, England, United Kingdom
About
Diane Seymour-Williams is Chair at SEI and holds non-executive director positions across asset management, wealth technology, private markets, and venture capital, as well as serving as an independent member of the Valuation Committee of Chrysalis Investments Limited. Her executive career in investment management spanned roles including portfolio manager, chief investment officer, chief executive officer, and distribution head, with a specialization in Asia and experience across Europe and North America. She has chaired remuneration, ESG, and investment performance and risk committees, and completed the University of Cambridge's sustainable finance course in 2021.
Experience
- SEIChaircurrent2025 — present
- SEINon Executive Director2019 — 2025
- Mercia Asset Management PLCNon Executive Directorcurrent2020 — present
- Patria Private Equity Trust PLCNon Executive Directorcurrent2017 — presentLondon Area, United Kingdom
- Chrysalis Investments (Investment Trust)Independent Member, Valuation Committeecurrent2022 — presentGuernsey
- Acorn Capital AdvisersConsultantcurrent2019 — presentLondon
- Praxis Group LimitedNon Executive Director2019 — 2024Guernsey
- Brooks MacdonaldNon Executive Director2011 — 2020London Area, United Kingdom
- Brooks MacdonaldChairman Committee2012 — 2019London, United Kingdom
- WITAN PACIFIC INVESTMENT TRUST PLCNon Executive Director2010 — 2019London, United Kingdom
- Calculus CapitalNon Executive Director - Calculus VCT Plc2017 — 2019London Area, United Kingdom
- Calculus CapitalChairman -Neptune-Calculus Income and Growth2017 — 2018London Area, United Kingdom
- The China Fund, Pakistan Fund, Batavia Fund, Calculus Capital, several UCITS BoardsNon Executive Director1993 — 2016Singapore, London
- LGM InvestmentsDirector and Global Head of Relationship Management2007 — 2016London
- Own PartnershipAsset Management Consultant (2005-2007)2005 — 2007London
- Morgan Grenfell/Deutsche Asset ManagementCEO, CIO, Director1981 — 2005London, Singapore
- Greater Korea TrustChairman1993 — 1997
Education
- University of CambridgeMA Economics
- University of CambridgeInsitutute of Sustainability Leadership, Sustainable Finance Course2021
Skills & more
From Diane's professional profile.
Colleagues at Acorn Capital Advisers
Frequently asked questions
- Where does Diane Seymour-Williams work?
- Diane Seymour-Williams is Affiliate; Investments at Acorn Capital Advisers.
Same school
Also attended University of Cambridge851
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Shared employers
Also worked at SEI14
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