INS Board

Kate Ellis


Kate Ellis joined the Nuclear Decommissioning Authority (NDA) in November 2017, as Commercial Director, from the Ministry of Justice, where she was Commercial Director for Her Majesty’s Prison and Probation Service.  She has brought a wealth of valuable commercial knowledge and experience to the NDA.

Previously, Kate was with BP for 22 years. She held several senior roles with the organisation, including Commercial Director of BP Shipping.

Kate was appointed to the role of Chairman of International Nuclear Services (INS) in July 2018.

Alaine Greaves

Since 2004, Alaine has been the Head of Finance for International Nuclear Services and became Finance Director of International Nuclear Services in April 2008.

Alaine commenced her career with Deloitte and Touche, qualifying as a Chartered Accountant and then spent 2 years as Budgeting and Forecasting accountant with the pharmaceutical company AstraZeneca, prior to joining BNFL in 2001 as a financial accountant. Alaine progressed to Head of BNFL Group’s Financial Accounts and Treasury Back Office functions at its Corporate Centre in Daresbury.

Seth Kybird

In October 2017, Seth Kybird was appointed Managing Director of INS on an acting basis. This was after four years as the Commercial Director.

Seth began his career with Deloitte, qualifying as an Accountant in the London practice, before joining KPMG’s Transaction Services team, focusing on M&A. He then spent a number of years as a strategy consultant, working for a number of commercial and government clients, across a range of sectors, with a particular focus on the nuclear industry. Clients included UK Atomic Energy Authority, Sellafield Ltd, Horizon and INS. Seth also spent time working for the UK Government’s Shareholder Executive team, focusing on the management of nuclear legacies through the Nuclear Decommissioning Authority(NDA) as well as the development of the UK new build programme. He joined the NDA in 2012, focusing on government relations before his move to INS.

Seth joined the INS Board in October 2017.

Chris Watson

Chris joined INS in April 2016 as Business Services Director following almost 10 years with the Nuclear Decommissioning Authority (NDA). He has considerable experience in Portfolio, Programme and Project Management; Assurance; and Health and Safety.

His experience of strategy development and risk assurance will help INS make well-informed decisions as it develops and delivers its new strategy.

Chris joined the INS Board in February 2019.

Peter Buchan

Peter has a BSc (Hons) in Chemistry and has vast experience working with European and Japanese Customers. Peter joined the nuclear industry with BNFL in 1991 and in the early part of his career he worked in the reprocessing and MOX commercial area, following which he served as Special Assistant to a BNFL Board director and spent just under four years as a General Manager in the BNFL Tokyo Office.

Peter became Commercial Director for INS in 2010 before moving to the role of Business Development and Corporate Responsibility Director for two years and was appointed to the role of Director of Shipping in March 2015.

Peter joined the INS Board in June 2015.

Jeremy Gilmour

Jeremy joined the NDA in 2005 and since then has undertaken a number of roles in the Sellafield team and, more recently, in NDA’s head office. Previous positions in the NDA include Business Performance Manager and Lead Contract Manager for Sellafield. Jeremy is now an advisor in the CEO’s office alongside an interim role as Head of the NDA Portfolio Office.

Jeremy is a Chartered Quantity Surveyor and previously worked for private sector organisations providing commercial consultancy support to a wide variety of projects. He has worked in a number of sectors including Commercial Property Development, Infrastructure and, for the last two decades, Nuclear.

Jeremy joined the INS Board in June 2016.

Archie Robertson OBE

Archie has over 35 years experience of shipping, transportation and energy. 

After graduating in Chemistry and Economics from Stirling University, he worked in international oil refining, tankers and logistics for 20 years. Returning to the UK in 1995, Archie became the first Director of Operations for the newly formed Environment Agency, a largely regulatory role which also included oversight of nuclear plants in England and Wales. In 2003 he became the Chief Executive of the Highways Agency and introduced many user facing improvements such as the Traffic Officer Service and control centres, enhanced traffic information services and Managed Motorways. In 2010 Archie became Chief Executive of the David MacBrayne Group which operates shipping and ferry services around Scotland.

His portfolio, since retiring from executive management, includes chairmanship of the charity Living Streets and renewables enterprise Via Verde Inc. Archie is a director of Covent Garden Market Authority and of construction technology company Rapid5D Ltd.

He is a Fellow of the Chartered Institute for Highways and Transportation, and a Companion of the Chartered Management Institute.

Archie joined the INS Board in September 2016.

Clive Nixon

Clive is a non-executive director on the INS board.

Clive joined the Nuclear Decommissioning Authority (NDA) in April 2005, after 15 years with British Nuclear Fuels, where he undertook a number of roles across Research and Development, technical and commercial areas covering the full range of activities and facilities at Sellafield, including reprocessing, waste management and decommissioning.

Roles undertaken within NDA include Strategy and Engineering manager for Sellafield, member of the Sellafield competition team and, currently, Head of Strategy for the NDA portfolio. These roles have included developing the NDA approach to strategy development and implementation and acting as the NDA Programme Manager for Plutonium and Spent Fuel management in support of the UK Government policy development activities.

Clive has a BSC and MSC in Engineering and Applied Mathematics and is a graduate of the Project Leadership Programme.

Clive joined the INS Board in February 2019.