Meet our team and advisors

Eido core team

  • A smiling man with a beard and short brown hair, wearing a dark suit jacket and a light-colored dress shirt, posed against a plain white background.

    Ben Winkley

    CEO AND CO-FOUNDER

    Ben is a Co-Founder and CEO of Eido Research. Prior to this, he has seven years’ professional experience: four years working in statistics for the British Civil Service and three years as a monitoring and evaluation freelancer. Having obtained his master’s degree in Official Statistics from Southampton University, his areas of expertise lie in business management and analysis, quantitative research and evaluation methods, statistical analysis, and communication of research data to non-academic audiences.

  • A man with dark hair, glasses, wearing a gray blazer and light shirt, smiling against a white background.

    Philip Sital-Singh

    PRINCIPAL CONSULTANT

    Philip is a Principal Consultant and Director at Eido Research, where he has been lead delivery since joining in 2018. Before this, he spent over a decade driving research and evaluation initiatives across three UK non-profits. He has led evaluation and research projects—both quantitative and qualitative— of varying shapes and sizes as an internal staff member and external consultant. Philip specialises in coaching, training and the development of theory of change work, and increasingly seeks to bring his training as a Christian spiritual director into his work to find Christian ways to use evidence.

  • Sarah Gray

    PRINCIPAL CONSULTANT

    Sarah brings expertise in monitoring, evaluation and learning from over 15 years working in international development and humanitarian policy and programming. This includes work for the UK's Department for International Development and Foreign, Commonwealth and Development Office, international development NGOs and as a research consultant with Brunel University London.

  • Professional young man with curly brown hair and glasses, smiling in a business suit against a white background.

    Tyler Overton

    LEAD RESEARCH CONSULTANT

    Tyler is a social researcher with five years’ professional experience with universities, NGOs, churches, and foundations. After graduating from Oxford University with First-Class Honours, he returned to Oxford for an MPhil in Development Studies, and wrote his master’s thesis on Christianity’s influence on environmental stewardship in the work of a NGO in southern Mexico.

  • A man with short brown hair, glasses, and a white shirt smiling against a white background.

    Ben Keenan

    LEAD RESEARCH CONSULTANT

    Ben has over 10 years’ experience working with UK non-profits. Most recently he worked for the Church of England where he Co-Led on Monitoring and Evaluation for the Church's national funding programmes (totalling £1.2billion). Before that he spent several years at Tearfund advising on M&E and strategy development. He has had the joy of leading multiple evaluations across Asia and has a passion for helping others develop their own understanding of M&E practices so that they can better understand and increase their impact.

  • Headshot of a woman with shoulder-length brown hair wearing a white collared shirt smiling.

    Monica Isaacs

    RESEARCH CONSULTANT

    Monica is a Research Consultant at Eido, passionate about helping organisations demonstrate meaningful impact through learning and evidence-based action. Originally from São Paulo, Brazil, she holds a bachelor’s degree in International Relations and brings over eight years of experience leading and supporting projects across the Christian sector, including with the Church of England, Tearfund, and Compassion.

  • Headshot of a young man with brown hair, wearing a white collared shirt under a gray sweater, smiling, against a plain white background.

    Samuel Verbi

    CO-FOUNDER AND ADVISOR

    Samuel is the Co-Founder of Eido. Prior to this, he has four years of professional experience as a monitoring and evaluation freelancer, and five years of research experience completing his bachelor’s and master’s in sociology. His areas of strength include programme evaluation, research design, spiritual impact measurement, and qualitative methodology.

Non-Executive Advisors

  • Rev. Dr. Kate Coleman

    NON-EXECUTIVE ADVISOR

    Kate is the founding director of Next Leadership. She has 35 years of leadership experience in the church, charity, voluntary, and business sectors, and is a mentor and coach to leaders from diverse sectors, backgrounds, and communities.

    Kate was the first black woman Baptist minister in the UK and has been recognised as one of the 20 most influential black Christian women leaders in the country. A popular speaker, lecturer and author, Kate has gained a reputation as a pioneer, visionary, and an inspiration to many. She now serves as a strategic advisor who mentors, coaches, and supports leaders and organisations locally, nationally in the UK, and internationally around the globe with a network extending across all sectors and church denominations.

  • Portrait of a smiling man with short light brown hair, wearing a white dress shirt, against a plain white background.

    Grayden Reece-Smith

    NON-EXECUTIVE ADVISOR

    Grayden works in finance in London. He is passionate about helping Christians make their lives more impactful and is ambitious about the ability of altruists to solve some of humanity's biggest problems. Grayden is also a Trustee of International Care Ministries UK, Christians for Impact and Effective Altruism UK

  • Portrait of a man with short hair and a beard wearing a black t-shirt, standing against a plain light-colored background.

    Paul Twelftree

    NON-EXECUTIVE ADVISOR

    Paul has worked in senior leadership across not for profit and commercial businesses, in startups and for global brands focusing on their vision, strategy, scale, innovation and technology. He is passionate about empowering people and teams to be the best that they can be and the continued success for all involved in a venture.

    As an advisor to Eido, his experience in consulting, M&A and partnerships plus his data-driven and pragmatic approach to seeing results have already shaped our thinking for our next chapter.

  • A middle-aged man with gray hair wearing a dark suit, white shirt, and a green tie, standing in front of a window or glass wall, smiling.

    Charlie Arbuthnott

    NON-EXECUTIVE ADVISOR CHAIR

    Charlie worked in investment banking for 30 years for SG Warburg, Hambros and Royal Bank of Canada. Now as a consultant, he advised housing associations on both their finance and their community impact.  This work led to a project in Wandsworth, carried out by Eido Research, to create a network, drawing together faith based volunteer groups, the NHS, the police and the Council.

    From 2019-21, Charlie chaired the Archbishops’ Commission on Housing, Church and Community - drawing together the housing and development industry, the social housing sector and the church.

    Charlie chaired the strategy team for Chanctonbury Churches for six years, ensuring that the vision of the church was worked out in practice across the parish.