Our people

Raji (she/her) has extensive experience of charity leadership both in philanthropy and in the wider social justice field of advocacy and campaigning. She comes with a commitment to deep systemic change, building community power and leadership within smaller organisations.

The CEO role sits within Tudor’s commitment to challenge philanthropy’s traditional power dynamics, so that Tudor’s practices both move at the pace of community ambition and in line with our charitable commitments. Raji holds ultimate responsibility for the embodiment of our mission and our behaviours, holding the line on what we want to achieve in ways that mean all our people understand their responsibility to do the same.

Holly (she/they) is our Learning and Knowledge Lead and comes with a deep practice of systems thinking and learning. She leads on how we operationalise our commitment to emergence and systems thinking, so that we can better tell the story of how our grant-making is demonstrating meaningful change. They are also leading on the building of ecosystem maps through which the programme team are able to make informed decisions about grants. As our work evolves, Holly will take more responsibility for sharing our learning in public and how this is influencing our work.

Holly has extensive past experience of supporting anti-racist practice, system change and emergent strategies. Outside of Tudor, Holly works within their local community to organise at the intersections of mental health, healing and social justice.

Anna (she/her) is our Systems and Operations Lead. She manages grant lifecycles, bridging the work of the programme and operations team. She has played a leading role in rebuilding our grant-making system, and the architecture of our new website in line with Tudor’s transformation. This has involved being the key link between our external technical providers and Tudor’s requirements. She holds us to account on detail, deadlines, and due diligence.

Prior to joining Tudor, Anna was Grants Officer at the J Paul Getty Jnr Charitable Trust. Before that she undertook a mix of public and voluntary sector roles, while working towards an MSc in Development Management with the Open University. She is also a trustee and Chair of her local village hall.

Alaina Heath (she/her) is our newest Programme Officer, joining us in November 2025. She is part of the programme team, building a pipeline of grants through our ecosystem mapping, holding relationships with our partners and feeding into the learning approach of our grant-making.

Prior to joining Tudor, Alaina worked as a project officer at the National Survivor User Network (NSUN) with a focus on resourcing grassroots, user-led community groups, particularly those working at the intersection of racial justice and mental health. Over the years, Alaina has volunteered as a grant writer for community organisations focused on education, arts, culture and heritage.

Outside of Tudor Alaina, is a trustee at Displace Yourself Theatre, a Bradford based charity using theatre to explore intercultural connectivity and stories.

Claire (she/her) is the Finance & Operations Manager at Tudor, working within the Operations team to manage the workplace, maintain oversight of compliance and day-to-day financial management. She also holds governance and HR matters, and responsibility for trustee and staff employee lifecycles from recruitment to exit. Claire plays a critical role in ensuring all operational matters run smoothly so that all our people are able to deliver on our commitments. This includes health and safety, IT infrastructure, and managing our physical building.

Claire has previously worked in charitable organisations across the arts and sports sectors covering governance, operations, finance and HR. She holds a CGI certification in Governance & Administration.

Tim Nicholls (he/him) is our Head of Finance and Resources, and part of the Senior Leadership Team. He holds responsibility for all back-office operations, financial management and audit, and governance. He is also Company Secretary. Tim supports the Board with engaging with their duties as trustees by maintaining all governance policies, schedules of delegation and risk analysis. He also plays an important role in supporting the team with organisational due diligence in the grant-making process.

Tim is a Fellow of the Chartered Institute of Management Accountants. Tim has held numerous trustee roles in the charity sector and is currently a Trustee of Charity Finance Group where he is Treasurer and Chair of the Finance and Audit Committee. He also sits on the Members Advisory Council of the Association of Accounting Technicians (AAT) having been elected in March 2025. In April 2026, Tim joined the board of the Economic Change Unit (ECU) as Treasurer.

Mariam Radi (she/her) is a Programme Officer at Tudor, working in an emergent way to both develop our grant-making strategy and making grants at the same time. As part of the programmatic team she works collectively to map and resource the ecosystem. She also plays a role in building and managing relationships with our partners. Mariam holds additional responsibility for developing our grant-making architecture and holding our processes, ensuring these remain aligned to what we are working to achieve.

Prior to joining Tudor, Mariam worked as a policy officer at the Wellcome Trust with a focus on global climate and health policy. Previously, Mariam was at Professors Without Borders a charity dedicated to improving equitable access to quality education.

Outside of Tudor, Mariam is a trustee at Agenda Alliance, a feminist charity working to end the cycle of harm so that all women and girls can thrive.

Jemmar Samuels (she/they) is our Programmes and Communications Officer, and as part of the programme team, takes responsibility for programmatic learning communications. This means they play a role in developing our ecosystem mapping and programmatic strategy, as well as sharing learning with external stakeholders, including through our website.

Prior to joining Tudor, Jemmar worked across the third sector in communications, youth work and youth organising, and campaigns at organisations such as Friends of the Earth and INQUEST.

Outside their work at Tudor, Jemmar is a writer and organiser. They are one of the co-founders and former co-organiser of The Halo Collective and founder of Collective Punishment Campaign.

Dan Seifu (he/him) is a Programme Officer at Tudor, working in an emergent way to both make grants and contribute to the development of our grant-making approach at the same time. He holds relationships with our grant partners and contributes the learning to our ecosystem mapping. He holds additional responsibility for developing our ecosystem mapping approach and enabling the space for different forms of convening.

Prior to joining Tudor, Dan worked in a range of roles across the non-profit sector, with a focus on strategy development, climate justice, and youth organising. Dan’s work in philanthropy started during his time as a member of the Involving Young People Collective at Esmée Fairbairn Foundation.

Outside of Tudor, Dan is a trustee at Possible, a climate action charity and volunteers as a youth mentor at Step Out.

Dilys Winterkorn (she/her) is the Deputy CEO at Tudor. She provides strategic leadership for the development and implementation of all our programmatic work, ensuring that learning from our grant-making informs our wider ambitions to invest in communities. Dilys works closely with the CEO on Tudor’s wider strategic work and is a member of the Senior Leadership Team.

Dilys has spent her career in philanthropy and development in the UK and internationally, working alongside people and organisations to reimagine how resources, wealth, and power are used and mobilised in service of people and planet.

Alongside her role at Tudor, Dilys is a PhD researcher in African philanthropy at SOAS and serves as Chair of Trustees at Class 13.

Liz (she/her) specialises in supporting mission-driven organisations to build cultures where people, and the work they do, can thrive. With more than 20 years’ experience across the public and private sectors, she brings deep expertise in people, culture and organisational change, helping organisations navigate complexity and build confident, values-led leadership.

A facilitator, trainer and ICF-certified coach, Liz works with leaders and teams to create inclusive, effective workplaces where people can do their best work. Equity sits at the heart of her practice, shaping her approach to leadership, organisational development and culture change.

Derek (he/him) is a writer, philanthropy advisor, executive coach and published author. His first book, No Win Race, explored race and racism in modern Britain through the prism of sport. Derek’s current book, Giving Back: How to Do Good, Better, reimagines philanthropy through a reparative lens.

Derek has supported the development of Black and racially minoritised-led funds including Baobab Foundation, Resourcing Racial Justice and The Phoenix Way partnership (led by The Ubele Initiative). He is also a Churchill Fellow and a Thirty Percy trustee. Derek currently sits on the Church Commissioners for England’s Oversight Group, advising on how it establishes the £100 million impact investment Fund for Healing, Repair and Justice in response to historical links to African chattel enslavement.

Previously, Derek was the Director of Education & Learning at the Stephen Lawrence Trust before moving into philanthropy where he managed portfolios for Esmée Fairbairn Foundation, Laureus Sport for Good and the National Lottery Community Fund.

Jonathan (he/him) has 35 years of experience working in investment management including for a number of university, local authority and charity endowments. He is the author of Start With The Map The Right Way Up: An Introduction to Investment.

Jonathan is currently Chief Investment Officer and Vice Chairman of the Board for Stanhope Capital, a European and US based investment management business investing in bonds, quoted companies, unquoted companies, real estate and other assets and strategies. He is a long-standing Tudor trustee. He is also a fellow of the Securities Institute.

Previously, Jonathan was Chief Investment Officer of Newton Private Investment Management, a member of the Executive Management Committee and manager of one of the firms pooled funds investing in equities and bonds. He also held senior positions at Principal Investment Management where he managed institutional and private client portfolios and was a Portfolio Manager at BZW. Jonathan was previously a non-executive director of East Surrey YMCA for 9 years. He has an MBA from Cranfield School of Management.

Ozzie (he/him) is an accomplished Non-Executive Director (NED) with over 20 years of experience. He specialises in people, culture and transformation, having previously been Head of Innovation and Consultancy at UCL, a trustee at the Royal National Institute of Blind People and People Director at Otta.

Today, he is the People Leader for venture-backed tech scaleups, with footprints in the UK, Europe, North America and Asia. He also advises the Mayor of London for Mayoral Appointments as an Independent Panel Member, works with press regulator IMPRESS as an Independent Appointments Panel Member and is a Co-optee on Capital Letters’ Remuneration and Membership Committee. Previously, Ozzie was a NED at A2Dominion Housing Group, a residential property group with a social purpose. He is in his first term as a Tudor trustee and a member of our People and Culture committee.

In 2003, Ozzie became the youngest ever independent advisor to the Metropolitan Police, going on to advise various organisations, from the London 2012 Games Organising Committee to Business in the Community, where he chaired their National Youth Advisory Panel.

Christienna (she/her) is a writer and historian of Britain and the Caribbean. At the heart of her work is the conviction that Britain and its history cannot be understood in isolation from the Caribbean.

Christienna is currently the CEO of Mary Seacole House in Liverpool. She is the author of Entangled Lands: A Caribbean History of Britain, which is published by Penguin/Allen Lane. She also carries out consultancy with organisations and curriculum development to use stories about the past to face the realities of the present and work toward a just future. She is a trustee of the Black Cultural Archives and is a member of the Church Commissioners Oversight Group, advising on how it establishes the £100 million impact investment Fund for Healing, Repair and Justice in response to historical links to African chattel enslavement.

Previously, Christienna was an academic in the US and UK. In the UK, she was Lecturer in the History of Slavery and Unfree Labour at The University of Liverpool. She was also the founding convenor of the MA in Black British History at Goldsmiths, University of London, the first taught master’s programme of its kind in the UK. She was named a BBC Radio 3/Arts and Humanities Research Council New Generation Thinker in 2020. Christienna holds a MA and PhD from Princeton University in the US.

Saba’s (she/they) professional experience started in management consulting and venture capital, before moving to work with organising and activist groups first in the US and then in the UK.

She is currently the CEO of The Advocacy Academy, a youth organising movement based in South London. Saba is also currently a trustee of the Joseph Rowntree Reform Trust.

Previously, Saba was a Director of the Seabury Group consulting across the EMEA regions and the Founder and CEO of Global Action for Development overseeing global operations across the UK, Ghana and Algeria, focused primarily on healthcare and education. Saba has an MBA from Wharton Business School and an MSci in Mathematics from Imperial College London.

Susan (she/her) is an impact investor, a financial modeller, a research analyst and also enjoys coaching and mentoring others.

She currently leads on the Blue Resilience Capital Initiative at Earth Security. She co-built the impact investment function at the Children’s Investment Fund Foundation in the UK since 2019, managing a $100 million investment portfolio in climate, health and food and agriculture. She sits on over 10 advisory and impact committees including at Cross-Border Impact Ventures which invests in technology companies that meet the needs of women and children, and SEACEF which invests capital to accelerate the low carbon transition in Southeast Asia. Susan is also a mentor for fellow Chinese female working professionals with the Chinese Women in the City’s Polaris Mentorship Programme.

Previously, Susan worked in the US at EY as an investment advisor and S&P Global as a quantitative researcher. She holds two master’s degrees in accountancy and finance and has completed the impact investing programme at the Saïd Business School, University of Oxford.

Georgina (she/her) has over 20 years of experience including public speaking, systems thinking, program design, project management, facilitation, community organising and leadership coaching.

She is currently the CEO of BUD Leaders, a social enterprise she founded that is dedicated to creating equity for Global Majority Business and supporting large organisations to create more access to opportunities. Over the past decade, she has led BUD in supporting racially minoritised communities, leaders, and their organisations to grow, be resilient and become more sustainable and empowering thousands of Global Majority Women in leadership and change through innovative, accessible programmes. BUD focuses on 3 core areas, leadership, organisational development and systems change.

Prior to this, Georgina led a community café in south London, and is a true social entrepreneur. She is passionate about enabling others to step into their purpose and devoted to meaningful transformation that leads to real change.