
Dr Vivienne Cox, DBE
Chair
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Dr Vivienne Cox, DBE
Chair
Nationality: British
Appointed to the Board: December 2021
Independent: Yes
Skills and experience: Vivienne brings over 40 years of executive and non-executive experience, with a particular focus on sustainability, innovation and alternative energy. She held senior roles at bp plc and has served on boards including Eurotunnel plc, BG Group plc, Rio Tinto plc, Pearson plc, GSK and Stena AB in Sweden and was chair of Vallourec SA and Climate Change Capital. Vivienne was honoured with a CBE in 2016 and a DBE in 2022 for her contributions to sustainability, diversity, and inclusion. Vivienne holds a MA (Oxon) in Chemistry, an MBA from INSEAD, and honorary doctorates from Hull and Hertfordshire.
Other significant appointments: Non-executive director of at Haleon plc (audit and risk, remuneration and sustainability committees; workforce engagement director), non-executive director of Venterra Group plc (a privately owned company) and Chair of the Rosalind Franklin Institute (until December 2025).
Specific contribution to the Company’s long-term success: Vivienne’s deep governance, board, and sector expertise, combined with her leadership in sustainability and diversity, supports strong and effective Board leadership.
Jakob Sigurdsson
Chief Executive Officer
View ProfileJakob Sigurdsson
Chief Executive Officer , BSc, MBA
Nationality: Icelandic
Appointed to the Board: October 2017
Independent: No
Skills and experience: Jakob has over 25 years’ experience in large multinational companies, both listed and private, in speciality chemicals, plastics manufacturing and bio-tech sectors, including nine years with Rohm & Haas (now part of Dow Chemical) in the US. His executive responsibilities have spanned marketing, supply chain, business development, strategy and M&A, with a strong emphasis on driving growth in new or developing markets. He has served as chief executive of Alfesca, Promens and VIS and held board positions at the University of Iceland and the Technology Development Fund of Iceland. Jakob holds a BSc in Chemistry from the University of Iceland and a MBA from Northwestern University in the US.
Other significant appointments: Non-executive director of Coats Group plc.
Specific contribution to the Company’s long-term success: Jakob brings his diverse and international background in chemicals coupled with wider business, executive and non-executive experience to inspire and lead the Group.

Ian Melling
Chief Financial Officer (CFO)
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Ian Melling
Chief Financial Officer (CFO)
Nationality: British
Appointed to the Board: 4 July 2022
Skills & Experience: Ian held the role of senior vice president, corporate finance and R&D for Smith & Nephew plc, the medical technology company, having served as interim chief financial officer during 2020. Ian has worked in several senior finance roles in the UK and internationally for Smith & Nephew, including those with divisional and functional responsibility, having joined the group in 2006 he was senior vice president, group finance for five years until October 2021. Ian started his career and qualified as a Chartered Accountant at Deloitte LLP and holds a first class Master’s Degree in Chemistry from Oxford University.
Other significant appointments: Member of the UK Endorsement Board Preparer Advisory Group.
Specific Contribution to the Company’s long-term success: Ian contributes his significant financial experience as well as his background in the medical device sector which is relevant to the Company’s growth plans.

Janet Ashdown
Non-executive Director
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Janet Ashdown
Non-executive Director , BSc
Nationality: British
Appointed to the Board: February 2018
Independent: Yes
Skills and experience: Janet has over 30 years’ experience in the international energy sector, working across the value chain from customer facing through to manufacturing in increasingly senior roles. Janet had a distinguished career at bp plc for 30 years where her final role was head of the UK Fuels Business Unit. From 2010 to 2012, she served as CEO of Harvest Energy, an international private equity backed business. Janet also brings more than a decade of board-level experience having served as a non-executive director at SIG plc, Coventry Building Society, Marshalls plc and chair of the Projects & Programs Committee of the Nuclear Decommissioning Authority.
Other significant appointments: Non-executive director and chair of the Corporate Sustainability committee and Remuneration committee of RHI Magnesita NV, non-executive director of Stolt-Nielsen Limited and non-executive Director of Synthomer plc.
Specific contribution to the Company’s long-term success: Janet has extensive international executive and non-executive experience. She has experience of chairing remuneration committees across different sectors for over ten years and has now been chairing sustainability committees for 5+ years.

Brendan Connolly
Non-executive Director
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Brendan Connolly
Non-executive Director , BSc
Nationality: British
Tenure: Appointed to the Board February 2018.
Skills and expertise: Brendan has over 35 years’ experience in the international oil and gas industry having held a number of senior executive roles. Brendan was a senior executive at Intertek Group plc and had previously been CEO of Moody International (acquired by Intertek in 2011), prior to Moody, Brendan was managing director of Atos Origin UK. Brendan has also held Board positions, including senior independent director and chair of the remuneration committee of Synthomer plc, and as an independent director on the board of Applus Services SA until June 2024.
Other significant appointments: Non-executive director of Pepco Group N.V.
Specific contribution to the Company’s long-term success: With extensive executive and non-executive experience, Brendan brings operational, commercial and strategic expertise and insights; his role as the designated Non-executive Director for Workforce Engagement enhances the Board’s understanding of the views of employees and the culture of the Company.

David Thomas
Non-executive Director
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David Thomas
Non-executive Director , MA FCA
Nationality: British
Appointed to the Board: May 2018
Independent: Yes
Skills and experience: David is a member of the Institute of Chartered Accountants of England and Wales with extensive experience in finance across listed companies, as both a senior executive and an audit professional. He served as CFO at Invensys plc from 2011 until his retirement in 2014, having held senior roles within the business since 2002. Prior to that, he was a senior partner at Ernst & Young, specialising in long-term industrial contracting businesses, and was a member of the Auditing Standards Board. Until May 2023 he was interim chair of Dialight plc as well as chair of the nomination committee, having previously served as senior independent director and chair of the audit committee.
Other significant appointments: None.
Specific contribution to the Company’s long-term success: David contributes his expertise in finance and his understanding of the investment community and regulators as both a Board member and Chair of the Audit Committee, as well as his industry knowledge to enhance the risk lens for Board decision making.
Ros Rivaz
Non-executive Director
View ProfileRos Rivaz
Non-executive Director , BSc Hons, Honorary DSc
Nationality: British
Appointed to the Board: May 2020
Independent: Yes
Skills and experience: She has held senior executive roles at Exxon, Tate & Lyle, ICI, Diageo and Premier Foods and served as global chief operating officer at Smith & Nephew from 2011 to 2014. Her non-executive roles include ConvaTec plc, RPC Group plc, Boparan Holdings Limited, Rexam plc and CEVA Logistics AG. She chaired the Nuclear Decommissioning Authority and served on the Ministry of Defence Equipment and Support board. Until September 2024, Ros was SID, employee engagement director and chair of the remuneration committee of Computacenter plc. She holds a BSc (Hons) in Chemistry and an honorary doctorate from Southampton University
Other significant appointments: Lead independent director of Aperam SA and chair at privately owned Anglian Water.
Specific contribution to the Company’s long-term success: Ros’ strong executive and non-executive track record, particularly in the medical sector, supports growth and strengthens the Chair in her SID role.

Urmi Prasad Richardson
Non-Executive Director
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Urmi Prasad Richardson
Non-Executive Director , MSc, MBA
Nationality: USA
Appointed to the Board: May 2024
Independent: Yes
Skills and experience: Urmi has over 25 years of global experience in executive and non-executive roles with a particular focus on life sciences, biotechnology, medical and innovation based business. Urmi began her career with G.D. Searle (a Pfizer company) and has held leadership roles across Europe, the US, and Asia-Pacific. Her executive career includes senior positions at the Linde Group, where she was global head of healthcare, Novartis Vaccines & Diagnostics, and at Foundation Medicine (a Roche company) and until September 2025 President EMEA of Thermo Fisher Scientific.
Other significant appointments: None
Specific contribution to the Company’s long-term success: Urmi has extensive global experience in strategy, business development, commercial operations and product commercialisation in Europe, Middle East and Africa, Asia and the Americas. Her wealth of relevant experience in medical and science-based innovation will be valuable as Victrex unlocks the true potential of its Medical business.
Jakob Sigurdsson
Chief Executive Officer
View ProfileJakob Sigurdsson
Chief Executive Officer
- Responsible for the day-to-day running of the Company
- Recommending to the Board and implementing agreed strategy
- Executing board decisions
- Matters not reserved for Board decision are delegated to the CEO

Ian Melling
Chief Financial Officer
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Ian Melling
Chief Financial Officer
- Responsible for financial control
- Leads the Finance, IT and IP teams
Andrew Hanson
Director of Investor Relations, Corporate Communications & ESG
View ProfileAndrew Hanson
Director of Investor Relations, Corporate Communications & ESG
- Investor relations, corporate & media communications, internal communications
- Leads the Communications and ESG teams
Michael Koch
Managing Director, Sustainable Solutions
View ProfileMichael Koch
Managing Director, Sustainable Solutions
- Responsible for performance of the Sustainable Solutions business
John Devine
Managing Director, Medical
View ProfileJohn Devine
Managing Director, Medical
- Responsible for performance of the Medical business
Jilly Atherton
Group HR Director
View ProfileJilly Atherton
Group HR Director
- People strategy
- Leads the Human Resources and Business Administration teams
Jane Brisley
General Counsel & Company Secretary
View ProfileJane Brisley
General Counsel & Company Secretary
- Legal, governance and Company secretarial matters
- Leads the Legal, Company Secretariat and Executive Support teams
Suranjan Ghosh
Chief Operating Officer
View ProfileSuranjan Ghosh
Chief Operating Officer
- Responsible for areas including Operations and SHE (Safety, Health & Environment)
- Leads the Procurement, SHE and Supply Chain teams
Board Committees
- download document All Board Committee’s Terms of Reference
- download document Corporate Responsibility Committee’s Terms of Reference
- download document Remuneration Committee’s Terms of Reference
- download document Audit Committee’s Terms of Reference
- download document Nominations Committee’s Terms of Reference