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Our people

Our Executive Board

The Donkey Sanctuary is an international charity with a wealth of knowledge and experience borne from over 50 years working to improve the welfare and wellbeing of donkeys everywhere. Our team of experts work across many disciplines but share one common passion, donkeys.

An image of a blonde women wearing a dark blue fleece with The Donkey Sanctuary logo, sat on a bench in front of flowers.

Marianne Steele

Chief Executive Officer

Marianne Steele joined The Donkey Sanctuary as Director of Fundraising and Communications in 2010, following a long and varied career within the charity sector. Appointed Deputy Chief Executive in 2017 and Acting Chief Executive Officer in 2021, her tenure has seen the charity enjoy unprecedented growth in income generation, visitor engagement and public awareness about the importance of donkeys to vulnerable communities around the world.

Marianne’s motivation lies in a personal mission to change the perception of donkeys and the role they play in the world; animals she believes are deeply intelligent and sentient creatures that are underestimated by so many.

Prior to The Donkey Sanctuary, Marianne has worked within the not-for-profit sector for more than 25 years for causes including Arts and Heritage, and Health and Environmental, specialising particularly in fundraising, communications and development.

An image of a women stood in front of troughs filled with straw as a group of donkeys eat from them.

Faith Burden

Deputy CEO AND Executive Director of Equine Operations

Faith Burden has worked for The Donkey Sanctuary since 2004 and is the Deputy CEO and Executive Director of Equine Operations. Faith leads the charity’s sanctuary provision, international programmes, veterinary, education, welfare, technical and research functions. She is the co-author of over 100 peer-reviewed articles and is a globally recognised expert on the health and welfare of donkeys and mules.

Faith has a PhD in infectious diseases and has experience working across human and animal health care settings in academic, private and NGO sectors. Her research interests include donkey and mule welfare assessment, donkey nutrition, infectious diseases and parasitology and she has active collaborations with universities worldwide. She has worked with industry to design and produce donkey feeds and has enjoyed working with donkey owners around the world to develop cost-effective, high-welfare husbandry systems. Faith has also worked at national and international levels to influence and develop policy and guidelines to promote the highest standards of animal welfare, in particular for equids.

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Niall Duffy

Executive Director of Policy and Profile

Niall Duffy joined The Donkey Sanctuary as Executive Director of Policy and Profile in August 2023. His teams are responsible for the charity’s external communications, brand, campaigning, and advocacy, changing the world for donkeys and the lives of those who depend on them.

He has more than 20 years’ experience in Public Relations, Comms and Lobbying working for organisations as varied as Qatar Airways, Flybe, Nestlé UK, the NHS, the Independent Press Standards Organisation, and the RSPCA, where he was Head of Public Affairs during the campaign to ban fox hunting, hare coursing and stag hunting.

Niall also spent some time in politics and was Leader of Southwark Council between 1997 and 2000, making him the youngest Leader in the country at that time.

An image of a women with dark hair smiling toward camera while wearing a blue gilet with The Donkey Sanctuary logo.

Cheryl Martin

Executive Director of People and Planning

Cheryl Martin is The Donkey Sanctuary’s Executive Director of People and Planning. She took on the role in 2023, having previously been Director of Brand and Communications for four years. Her teams are responsible for the charity’s people, culture, governance and estates – ensuring the sanctuary is a safe, secure and compliant workplace to deliver the best for its donkeys and supporter funds.

Cheryl has more than 25 years’ experience in business planning and strategic communications, having worked across all sectors. Her career has spanned internationally – from working in business planning at the New Zealand Ministerial Government to consulting for large multi-national corporations and start-ups.

Cheryl has come full circle, having started as a journalist at agricultural college, writing for the equine press when she was 18. Her passion for all things equine has never wavered – she owns a pony and three sheep which keep her busy outside of work!

A man stood in front of a donkey statue in a closed garden with two wooden bench's either side of him.

Kevin Adams

Executive director of resources

Kevin Adams has worked for The Donkey Sanctuary since November 2023, first as Director for Information Systems and Data Management and most recently as our new Executive Director of Resources.

Kevin has more than 25 years of experience in global change, compliance and transformation, working with organisations as varied as BT, Cable and Wireless, Amey, Tui Travel, Meggitt Aerospace, City West Homes and Cats Protection where he was Executive Director of Digital, Data, Architecture and Transformation.

Kevin is a BCS Fellow and Fellowship Assessor, qualified internal auditor, Six Sigma practitioner, CIO 100 recognised leader and the owner of nine European patents.

Our Trustees

The Trustees of The Donkey Sanctuary are ultimately responsible, in law, for the charity, its assets and activities. Meet the current board.

An image of a man stood next to a brown donkey looking toward camera.

Paul Lunn

Chair of Trustees

Paul Lunn joined as a Trustee in June 2021 and was appointed as Chair of the Board of Trustees in March 2022.

Paul is currently Dean of the School of Veterinary Science at the University of Liverpool, starting the role in January 2022. Previously, he served as Dean of the College of Veterinary Medicine at North Carolina State University since February 2012. Prior to moving to North Carolina, Paul was a Professor and the Head of the Department of Clinical Sciences at the College of Veterinary Medicine and Biomedical Sciences at Colorado State University. Before moving to Colorado in 2003, Paul worked as a large animal medicine faculty member and as Associate Dean for Clinical Affairs and Director of the Veterinary Medical Teaching Hospital at the School of Veterinary Medicine, University of Wisconsin-Madison.

Paul grew up in a farming community in North Wales, before studying veterinary medicine at Liverpool University. After a period in private practice in the UK, he pursued clinical training in Ontario and Wisconsin, and doctoral research training at the University of Cambridge. As a faculty member, outside of clinical work Paul’s interests have been in equine immunology and infectious disease. His research has focused on influenza virus and EHV-1 infection in horses, and more recently on infectious diseases of working equids in low-income countries.

Outside of work, Paul and his wife Kathy enjoy hiking and raising terriers. Paul also fly fishes and skis inexpertly but enthusiastically.

An image of women stoof next to a piebald donkey wearing a fly mask in an outdoor paddock.

Karen Reed

Karen Reed joined as a Trustee in July 2025.

Karen graduated as a vet from the Royal Veterinary College and spent 3 years in mixed practice in the UK before starting her international veterinary career, firstly in Nepal (1990 to 1993) and then in Jordan (1995 – 1999), interspersed with completing a Master’s degree in Tropical Veterinary Medicine at the University of Edinburgh.

Following a further stint in mixed UK veterinary practice, in 2002 Karen took on the role as Veterinary Director for a UK based working equine welfare charity, moving on to a similar organisation in the sector in 2010 as Head of Animal Welfare and Research. Both roles involved extensive travel, providing guidance to working animal welfare projects and supporting team members in Asia, Africa and Central America.

Since 2017 she has been at Dogs Trust, firstly as Director of Dogs Trust Worldwide, and now as Veterinary and Welfare Director.

Outside of work, Karen lives in Sussex with her husband and retired greyhound and spends a lot of time checking out new open water swimming locations!

An image of women stood next to a skewbald donkey in an outdoor paddock.

Sharon Martin

Sharon Martin joined as a Trustee in July 2025.

Sharon started her career in public sector audit, where she gained the CIPFA accountancy qualification. In 2009 she moved to the Charity sector, taking up the Head of Finance role at the Charity Commission. Since then, Sharon has held three senior finance roles, at the RSPCA, Cats Protection and since 2020 as Chief Financial Officer at the Born Free Foundation.

Sharon has a passion for animal welfare and is committed to the Charity sector, she has also undertaken a variety of voluntary roles from being a driver for Re-engage, a charity that helps older people tackle loneliness, to being an independent advisor to various charity and regulatory audit committees.

Sharon lives in West Sussex and enjoys travelling, keeping fit and reading.

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Lucy Metcalfe

Lucy Metcalfe joined as a Trustee in July 2025.

Lucy is an experienced, strategic pharmaceutical leader, with an undergraduate degree in Veterinary Science, diploma in Marketing and currently finalizing an MBA at Warwick Business School.

Having grown up on a farm in Yorkshire, Lucy qualified as a Veterinary Surgeon, from the University of Liverpool in 2005. After working in both mixed and specialist Equine Practice in Wales and Ireland, she completed a Residency in Equine Internal Medicine and qualified as a European Board-certified Specialist.

In 2013, Lucy began working in the Animal Health Pharmaceutical Industry, initially in Ireland and, in 2018, moving to a global position based in Germany. During this time Lucy had a variety of technical, commercial and portfolio strategy roles, with a particular emphasis on preventative healthcare, in Ruminant and Equine species areas.

After having spent seven years working in Global Strategic Marketing, Lucy has recently moved back to the UK. She is now living near Stratford-upon-Avon with her family; husband, daughter and two black Labradors (Puddles and Goose).

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Edemekong Uyoh

Eddy Uyoh joined as a Trustee in July 2025.

Eddy is an experienced marketing and communications professional with over 18 years of experience across sectors including social enterprise, telecoms, government, finance, FMCG, and healthcare. She currently serves as the Global Head of English and School Education Programmes Marketing at the British Council, leading strategic marketing and communications for English and School Education Programmes across over 100 countries worldwide.

Previously, she led regional marketing for cultural engagement across 17 Sub-Saharan African countries. Her work has earned recognition from the Chartered Institute of Marketing and the Global Purpose Awards. Eddy is also active in global education initiatives, including UNESCO’s communication teams.

She holds a Computer Science degree from the University of Calabar, Nigeria, and sits on the Board of the British Council Nigeria. Eddy is affiliated with several professional bodies and is an alumna of the Digital Leadership Programme by Avado, UK. She is passionate about using marketing to drive transformative change.

An image of a women stood in an outdoor paddock with a light grey donkey.

Vivienne Hole

Vivienne joined as Trustee in September 2023 and was appointed the Resources Performance Committee Chair in July 2024.

Vivienne is an experienced HR consultant with a background in financial services, having held senior roles at the international press agency Reuters, and in the City of London at LIFFE (London International Financial Futures and Options Exchange), Cofunds and James Hay. She has run her own HR consulting business for several years providing services to clients such as EBRD, Vitality and Bravura Solutions, and has provided coaching for boards in the charity and not for profit sector. Vivienne served as a Board Director at Cofunds and as a Non-Executive Director for the Welsh Assembly Government. She is currently a Trustee at Epping Forest Schools Partnership Trust.

Vivienne is a Freeman of the City of London and studied a BSc in economics at Cardiff University before gaining a Masters at the London School of Economics. She holds a Diploma in Company Direction from the Institute of Directors and is a Chartered Fellow of the CIPD.

Vivienne lives in London with her family and three cats.

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Ajay Barai

Ajay Barai joined as a Trustee in July 2023 and was appointed the Donkey Performance Committee Chair in November 2024.

Ajay is an experienced senior INGO leader, with an MSc in responsibility and business practice from the University of Bath. Since 1999 Ajay has been working exclusively in values-driven environments, initially with local government, then as a consultant for not-for-profit organisations, and for the last 17 years with the global environmental NGO WWF. From 2001-2006 Ajay mainly lived overseas in Singapore and Malaysia, where he established and grew a successful eco-resort business on Tioman Island (a marine protected area), also learning about other cultures’ and communities’ approaches to nature and species protection. Throughout his career Ajay has worked to find ways to promote harmony between people and nature, working to build and transform teams and organisations to be more effective and impactful.

While at WWF, Ajay has led several national and global change management initiatives including major organisational restructuring and changes to network governance. In his current role as Senior Leadership Team member and Regional Director for WWF International, Ajay is responsible for overseeing and supporting multiple offices in Europe and North Africa, guiding their strategic and organisational development, operational excellence, risk management, fundraising, policy influence, conservation delivery and financial sustainability.

Ajay lives in Surrey with his wife, two teenage children, two cats and dog, enjoying running, tennis, travelling, and long walks in the countryside.

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Andy Stringer

Andy Stringer joined as a Trustee in March 2019 and was appointed the Nominations Committee Chair in November 2024. 

Andy graduated with a veterinary degree from the University of Liverpool and spent the initial years of his career volunteering for a veterinary non-profit organisation in Morocco, completing an equine veterinary internship and in equine primary care practice. He returned to the University of Liverpool in 2007 to study for a PhD focused on evaluating the efficacy of knowledge-transfer interventions for communicating animal health information to rural farmers in Ethiopia.

In 2010, he joined a British non-profit organisation as Director of Veterinary Programmes where he was responsible for managing global veterinary programmes focused on improving the health and welfare of working animals. Between 2015 and 2022, he was an Assistant Professor - Veterinary Global and Public Health in the College of Veterinary Medicine, North Carolina State University. In September 2022, he returned to the UK to join the Institute of Infection, Veterinary and Ecological Sciences, University of Liverpool, as a Senior Lecturer in One Health.

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Elizabeth Sheldon

Elizabeth Sheldon joined as a Trustee in March 2020, and was appointed as the Vice Chair in March 2025.

Elizabeth is a Fellow of the Institute of Chartered Accountants with more than 15 years’ experience across many sectors. She graduated with a Geography degree from University College London before qualifying with an audit practice specialising in the ‘not for profit’ sector.

She worked for Ernst and Young and Man Group prior to joining CCLA Investment Management, a firm who specialise in managing investments for charities, religious organisations and the public sector.

Elizabeth is the Chief Operating Officer of CCLA and with a lifelong interest in animal welfare and international development.

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Lucy Back

Lucy Back joined as a Trustee in March 2020.

Lucy graduated from the Royal Agricultural College, Cirencester in 2005 with a degree in Rural Land Management before qualifying as a Chartered Surveyor in 2007. Originally from Somerset, Lucy has worked in the South East and South West for private and PLC property consultancies at Partner and Director level, providing management and strategic advice on property portfolios for private and institutional clients across the country.

She now runs her own company and is delighted that this allows the flexibility to contribute to a charity that encompasses animal welfare, the environment and education, all being areas she is passionate about.

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Tom Mitchell

Tom Mitchell joined as a Trustee in March 2019 and was appointed the Audit, Risk and Assurance Committee Chair in June 2019.

Tom is a Chartered Accountant with more than 35 years’ experience across many sectors, including the charity sector. He has been a Trustee and the Chair of the Audit and Risk Committee of the Royal Zoological Society of Scotland, was Chair at Dunedin Canmore Housing Association and Treasurer at the Royal Scottish Forestry Society.

Tom is a partner in CGPM Consulting LLP, a firm of Chartered Accountants which works almost exclusively with charities across the UK. He currently sits on the charities technical committee of the Institute of Chartered Accountants of Scotland, and he has sat on two reference groups of the Office of the Scottish Charity Regulator dealing with the redesign of Risk-based Regulation and the Incorporation process.

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