Chair

Ros Rivaz
Appointed
- Chair and Chair of the Nomination Committee in January 2024
- Chair Designate in November 2023
Skills, Competencies & Experience
Ros has a wide range of experience in executive and non-executive roles in blue chip companies, predominantly in highly regulated and high hazard environments, both in the UK and internationally.
Ros was previously Chief Operating Officer of Smith & Nephew plc and held senior management positions in global companies including Exxon, Diageo, ICI and Tate & Lyle Group.
She was Chair of the Nuclear Decommissioning Authority from September 2020 to August 2023. Ros has also held a range of other Board roles with private and listed companies including ConvaTec plc, Boparan Holdings, RPC Group plc, Ceva Logistics and Rexam plc.
Ros plays important roles in the charity sector and academia. She was Deputy Chair of the Council of the University of Southampton for ten years and was a non-executive director of the “Your-Life” initiative, which was a Government led, industry sponsored campaign to increase take up of Maths and Physics amongst 14 to 16 year olds.
Other Roles
Ros is Senior Independent Director and Chair of the Remuneration Committee at Computacenter plc, Lead Independent Director at Aperam SA and Independent Non-Executive Director at Victrex plc. Ros is also on the Board of the community interest company Eton Community CIC.
Executive Directors

Mark Thurston
Appointed
- Chief Executive Officer of Anglian Water Group in August 2024
Skills, Competencies & Experience
Mark is an engineer and highly experienced leader who, for more than 30 years, has held leadership roles for major infrastructure projects. Mark was previously European Managing Director of the engineering and projects company CH2M and played a key role in the growth of the business. He has also worked on both the London 2012 Olympics and Crossrail. Most recently, he was Chief Executive Officer of the High Speed Two Limited (HS2) from March 2017 to September 2023. During his tenure, he oversaw the development of an organisation and joint venture partnership model with the largest supply chain of any infrastructure project in the UK. With deep experience in both public and private sectors, Mark has a strong track record on projects requiring complex stakeholder engagement including high-profile regulatory and governmental interface.
Having started his career as a technician apprentice on the London Underground, Mark became a chartered engineer, honorary fellow of the Association for Project Management, and fellow of the Institution of Civil Engineers. In 2019 he received an honorary doctorate of technology at the University of East London and in 2021 the same honour from Loughborough University.
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Michael Bradley CB
Appointed
- Chief Financial Officer of Anglian Water Group in November 2024
Skills, Competencies & Experience
Michael is a qualified management accountant with more than 25 years’ experience operating at Board level, supporting companies in both the public and private sectors, where he has led Finance, IT and business-wide transformation in large complex organisations.
Michael was previously at EG Group, where he led the Finance team supporting a global business with over 50,000 employees and successfully navigated EG Group through a complex financial restructuring. Between November 2018 and August 2022, Michael was Chief Financial Officer at HS2 and he has also held senior roles at Defence Equipment and Support (DE&S), Enterprise and Alstom Transport.
Michael was appointed Companion of the Order of the Bath (CB) in the 2017 New Year Honours.
Non-Executive Directors

Albena Vassileva
Appointed
- Non-Executive Director inJanuary 2024
Skills, Competencies & Experience
Albena is an Executive Director at the Infrastructure Investment Team of IFM Investors. At IFM, Albena is responsible for the sourcing, execution and management of infrastructure investments across Europe, as well as the development of key industrial relationships and Energy Transition initiatives. At IFM, Albena has served on the Board of the Veolia Poland Group companies, and serves as Chair of IFM Investors Netherlands BV.
Before joining IFM, Albena led the M&A Advisory team for Energy at ABN AMRO Bank. Prior to that, she was a Managing Director at Advent International, one of the largest global investment funds, and Senior Investment Manager with ABN AMRO Capital. Throughout her investment career, Albena has served as a Non-Executive Director on multiple Boards and Board Committees in a range of industries and geographies.
Albena is a director of Anglian Water Group Limited.
Anglian Water ServicesExecutive Committee

Batiste Ogier
Appointed
- Non-ExecutiveDirector in November 2021
Skills, Competencies &Experience
Batiste is a Managing Director within CPP Investments’ Real Assets team, where he specialises in Infrastructure and Renewable Energy investing. Prior to joining CPP Investments in 2019, Batiste was a Director at First State Investments, specialising in European infrastructure. During his career, Batiste has overseen multiple investments across water, gas, electricity, transport, communications, wind and solars ectors. He first joined the Board of Anglian Water as an Alternate Director in2014.
Batiste studied as an undergraduate at Kings CollegeLondon, London School of Economics and Sciences-Po Paris and is a FellowChartered Accountant (ICAEW).
Batiste is a director ofAnglian Water Group Limited.
Other Roles
Batiste is a director ofServicios Medio Ambiente Holding, S.A.U. He is also a member of CPPInvestments’ European Credit Committee.
James Bryce
Appointed
- Non-Executive Director in May 2018
Skills, Competencies &Experience
Other Roles

John Barry
Appointed
- Non-Executive Director in November 2020
Skills, Competencies &Experience
John is a Chartered Accountant and now serves on a number of boards in the infrastructure sector. He was a founding member of 3i’s infrastructure business and served as a Director of 3i Infrastructure. Thereafter he was a Managing Director of First Reserve Corporation, where he was one of the founders of First Reserve’s energy infrastructure business. During his time at First Reserve he oversaw numerous investments into the energy sector, including energy from waste, wind and solar power plants, gas-fired power plants, utilities and oil and gas midstream as well as energy backup. John holds a BSc (Hons) in Physics from the University of Southampton.
Other Roles
John is Non-Executive Chairman of Cory Energy Group, a Non-Executive Director of North Sea Midstream Partners and an independent member of the Investment Committee for SUSI Infrastructure Partners Energy Transition Fund as well as for the MML Capital Infrastructure Fund.
Luis Pisco
Appointed
- Non-Executive Director in August 2022
Skills, Competencies & Experience
Other Roles

Niall Mills
Appointed
- Non-Executive Director in September 2008
Skills, Competencies &Experience
Niall Mills is the Managing Partner and the Global Head of Igneo Infrastructure Partners, based in London. He is a member of the EDIF II &III, GDIF and NADIF Investment Committees.
Niall currently sits on the board of directors of investee companies Anglian Water Group and Utilitas and holds an MBA from London Business School, an Institute of Directors Diploma in Company Directorship and a Bachelor of Engineering (Hons)from the University of Sheffield Hallam.
He is also a Fellow of the Institution of Civil Engineers.
Other Roles
Prior to joining the team in 2008, Niall worked in industry holding senior roles at Southern Water, Honeywell, Bechtel and United Utilities.
He has previously served on the board of investee companies Caruna, Digita, Electricity North West, and Reganosa.
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