Top 20 Charity and Volunteering Organisations in the UK

The United Kingdom has a long and proud tradition of charitable giving and voluntary action. From large international aid organisations to community-focused groups tackling local issues, UK charities and volunteering organisations play a vital role in supporting those in need, protecting the environment, advancing health research, and strengthening communities. Whether you are looking to donate, volunteer your time, or simply learn more about the incredible work being done across Britain, these are the top 20 charity and volunteering organisations in the UK that are making a real difference.

1. British Red Cross

Description: The British Red Cross is part of the International Red Cross and Red Crescent Movement and has been providing humanitarian support in the UK and around the world for over 150 years. The organisation responds to emergencies, supports refugees and asylum seekers, provides first aid training, and helps people in crisis regain their independence. Its volunteer network is one of the largest in the UK.
Location: Headquarters in London, with offices, shops, and volunteer teams across the entire United Kingdom
Popularity: One of the most recognised and trusted charities in the UK, the British Red Cross is a household name with a vast network of volunteers and supporters spanning every region of the country.
Special Features: Emergency response capability, refugee and asylum seeker support, first aid training programmes, independent living services, a nationwide network of charity shops, and extensive volunteering opportunities for people of all ages and backgrounds.
Link: British Red Cross

2. Oxfam

Description: Oxfam is a global confederation of charitable organisations focused on alleviating poverty and inequality worldwide. Founded in Oxford in 1942, Oxfam campaigns for systemic change, provides emergency relief in crisis zones, and supports long-term development programmes in some of the world's poorest communities. Its network of charity shops is one of the most successful in the UK.
Location: Headquarters in Oxford, with over 600 charity shops and offices across the UK
Popularity: One of the most prominent international development charities based in the UK, Oxfam is widely known for its charity shops, campaigning work, and emergency response operations around the globe.
Special Features: Global poverty alleviation programmes, a network of over 600 UK charity shops, strong campaigning and advocacy work, emergency humanitarian response, and a wide range of volunteering roles from shop work to campaigning.
Link: Oxfam

3. Age UK

Description: Age UK is the country's leading charity for older people, providing vital services, information, and support to help people enjoy later life. The charity campaigns on issues affecting older people such as loneliness, poverty, health care, and social care, and its local partner organisations deliver practical support in communities across England, Scotland, Wales, and Northern Ireland.
Location: Headquarters in London, with local Age UK partners in communities throughout the UK
Popularity: The UK's largest charity dedicated to older people, Age UK is a trusted source of information and support for millions and a powerful voice on the issues that matter most to people in later life.
Special Features: Free advice and information line, befriending services to combat loneliness, fitness and wellbeing programmes, day centres and social activities, campaigning on older people's issues, and volunteer opportunities including befriending and charity shop roles.
Link: Age UK

4. RSPCA

Description: The Royal Society for the Prevention of Cruelty to Animals is the oldest and largest animal welfare charity in England and Wales, founded in 1824. The RSPCA investigates and prosecutes cruelty cases, rescues and rehomes animals, provides veterinary care, and campaigns for stronger animal welfare laws. Its inspectors and volunteers work tirelessly to protect animals across the country.
Location: Headquarters in Horsham, West Sussex, with animal centres, branches, and inspectors operating across England and Wales
Popularity: The best-known animal welfare charity in the UK, the RSPCA handles hundreds of thousands of calls to its helpline each year and rescues tens of thousands of animals annually.
Special Features: A dedicated inspectorate with legal powers, animal rescue centres across England and Wales, veterinary hospitals, prosecution of animal cruelty cases, public education campaigns, and volunteering opportunities in animal care, fundraising, and retail.
Link: RSPCA

5. Macmillan Cancer Support

Description: Macmillan Cancer Support provides physical, emotional, and financial support to people affected by cancer across the UK. From specialist nurses and information centres to grants for those facing financial hardship, Macmillan is there from diagnosis onwards. The charity also campaigns to improve cancer care and funds research to ensure better outcomes for patients.
Location: Headquarters in London, with Macmillan nurses, information centres, and support services in hospitals and communities across the UK
Popularity: One of the most beloved charities in the UK, Macmillan is synonymous with cancer support and its annual Coffee Morning fundraiser is one of the biggest charity events in the country.
Special Features: Macmillan specialist nurses, information and support centres, financial grants for cancer patients, the annual World's Biggest Coffee Morning fundraiser, campaigning for better cancer care, and volunteering roles in support, fundraising, and events.
Link: Macmillan Cancer Support

6. The National Trust

Description: The National Trust is Europe's largest conservation charity, caring for historic houses, gardens, ancient monuments, and vast areas of countryside and coastline across England, Wales, and Northern Ireland. With over five million members, it is one of the most popular charities in the UK. Volunteers play a central role in everything from gardening and conservation work to welcoming visitors.
Location: Headquarters in Swindon, Wiltshire, with over 500 properties and more than 250,000 hectares of land across England, Wales, and Northern Ireland
Popularity: With over five million members, the National Trust is one of the largest membership organisations in the UK and one of the most visited heritage and conservation charities in Europe.
Special Features: Over 500 historic properties and gardens, custodianship of vast areas of coastline and countryside, a membership scheme offering free access to properties, extensive volunteering opportunities, and a role in preserving Britain's natural and cultural heritage for future generations.
Link: The National Trust

7. Shelter

Description: Shelter is a housing and homelessness charity that campaigns for everyone in Britain to have a safe and stable home. The charity provides expert advice and support to people facing housing problems, runs emergency helplines, and advocates for policy changes to address the root causes of homelessness and bad housing. Its work is more vital than ever given the ongoing housing crisis.
Location: Headquarters in London, with offices, advice centres, and charity shops across England and Scotland
Popularity: One of the UK's most prominent social justice charities, Shelter is a leading voice on housing issues and a lifeline for millions of people facing housing problems or homelessness.
Special Features: Emergency housing advice helpline, face-to-face advice services, legal support for tenants, campaigning for housing policy reform, a network of charity shops, and volunteering roles in advice, campaigning, and retail.
Link: Shelter

8. Cancer Research UK

Description: Cancer Research UK is the world's largest independent cancer research charity, funding scientists and doctors to find new ways to prevent, diagnose, and treat cancer. The charity funds research into all types of cancer and has been instrumental in developing many of the treatments used today. Its network of charity shops and fundraising events is extensive.
Location: Headquarters in London, with research centres, offices, and over 570 charity shops across the UK
Popularity: The UK's largest cancer charity by income and one of the most supported charities in the country, Cancer Research UK funds around half of all cancer research in the UK.
Special Features: Funding for pioneering cancer research, over 570 charity shops, major fundraising events including Race for Life, clinical trials and drug development, public health campaigns, and volunteering opportunities in research support, retail, and events.
Link: Cancer Research UK

9. Samaritans

Description: Samaritans provides emotional support to anyone in distress or at risk of suicide, 24 hours a day, 365 days a year. The charity operates a free helpline and also offers email and face-to-face support through its network of branches. Staffed almost entirely by trained volunteers, Samaritans is a lifeline for hundreds of thousands of people every year.
Location: Headquarters in Ewell, Surrey, with over 200 branches staffed by volunteers across the UK and Ireland
Popularity: One of the most vital and respected charities in the UK, Samaritans answers a call for help every six seconds and its helpline number is one of the most widely known telephone numbers in Britain.
Special Features: A free 24/7 helpline staffed by trained volunteers, email and face-to-face support, over 200 branches, partnerships with Network Rail and the NHS, and extensive training programmes for listening volunteers.
Link: Samaritans

10. The Trussell Trust

Description: The Trussell Trust operates the UK's largest network of food banks, providing emergency food parcels to people in crisis across the country. The charity also campaigns to end the need for food banks by tackling the root causes of poverty, including inadequate incomes, benefit delays, and the rising cost of living. Volunteers are the backbone of every food bank in the network.
Location: Headquarters in Salisbury, Wiltshire, with over 1,400 food bank centres across the UK
Popularity: The Trussell Trust has become one of the most prominent anti-poverty charities in the UK, with its food bank network providing a critical safety net for millions of people facing hardship.
Special Features: A network of over 1,400 food bank centres, emergency food parcels for people in crisis, campaigning to end the need for food banks, partnerships with local agencies and services, and volunteering roles in food collection, sorting, distribution, and client support.
Link: The Trussell Trust

11. RNLI (Royal National Lifeboat Institution)

Description: The RNLI is the charity that saves lives at sea around the coasts of the United Kingdom, Ireland, the Channel Islands, and the Isle of Man. Operating an all-weather and inshore lifeboat fleet crewed almost entirely by volunteers, the RNLI has saved over 143,000 lives since it was founded in 1824. The charity also runs beach lifeguard services and water safety education programmes.
Location: Headquarters in Poole, Dorset, with over 230 lifeboat stations around the UK and Irish coastlines
Popularity: One of the most admired charities in the UK, the RNLI enjoys enormous public support and its volunteer lifeboat crews are widely regarded as among the bravest people in Britain.
Special Features: Over 230 lifeboat stations, volunteer crews on call 24/7, beach lifeguard services, water safety education, a heritage fleet and museum, and volunteering opportunities both on and off the water.
Link: RNLI

12. Mind

Description: Mind is England and Wales's leading mental health charity, providing advice, support, and information to anyone experiencing a mental health problem. The charity campaigns to improve mental health services, challenge stigma, and promote understanding. Local Mind centres across the country deliver a wide range of community-based support services.
Location: Headquarters in London, with over 120 local Mind centres across England and Wales
Popularity: The UK's most recognised mental health charity, Mind has played a central role in transforming public attitudes toward mental health and is a go-to resource for millions of people seeking help and information.
Special Features: Information and support helpline, over 120 local centres, workplace wellbeing programmes, legal advice on mental health rights, campaigning for better mental health services, and volunteering roles in support, advocacy, and fundraising.
Link: Mind

13. RSPB (Royal Society for the Protection of Birds)

Description: The RSPB is the UK's largest nature conservation charity, working to protect birds and the wider natural environment across the UK and internationally. The charity manages over 200 nature reserves, campaigns for stronger environmental protections, and engages millions of people with wildlife through events such as the Big Garden Birdwatch.
Location: Headquarters in Sandy, Bedfordshire, with over 200 nature reserves and offices across the UK
Popularity: With over one million members, the RSPB is one of the largest wildlife conservation organisations in Europe and a powerful force for nature protection in the UK.
Special Features: Over 200 nature reserves, the annual Big Garden Birdwatch, species conservation programmes, environmental campaigning, a network of visitor centres, and volunteering opportunities in conservation, surveying, and visitor engagement.
Link: RSPB

14. Barnardo's

Description: Barnardo's is the UK's largest children's charity, supporting vulnerable children and young people through a wide range of services including fostering and adoption, counselling, support for children affected by abuse and exploitation, and early intervention programmes. Founded in 1866 by Thomas Barnardo, the charity now runs over 800 services across the UK.
Location: Headquarters in Barkingside, London, with over 800 services and charity shops across the UK
Popularity: One of the oldest and most respected children's charities in the UK, Barnardo's supports hundreds of thousands of children, young people, and families each year.
Special Features: Over 800 services for children and young people, fostering and adoption services, support for young carers, anti-exploitation programmes, a network of charity shops, and volunteering roles in direct services, retail, and fundraising.
Link: Barnardo's

15. Volunteering Matters

Description: Volunteering Matters is a national volunteering charity that brings people together to tackle some of the UK's most pressing social challenges. Through programmes that match volunteers with people in need, the charity addresses issues including loneliness, youth disadvantage, and disability inclusion. It has been championing the power of volunteering since 1962.
Location: Headquarters in London, with programmes and projects running across England, Scotland, and Wales
Popularity: A leading volunteering charity in the UK with decades of experience in mobilising volunteers to create positive social change in communities across Britain.
Special Features: Programmes tackling loneliness, youth disadvantage, and disability inclusion, corporate volunteering partnerships, skills-based volunteering opportunities, a history spanning over 60 years, and a focus on creating lasting community connections.
Link: Volunteering Matters

16. British Heart Foundation

Description: The British Heart Foundation is the UK's largest funder of cardiovascular research, investing in ground-breaking science to prevent, diagnose, and treat heart and circulatory diseases. The charity also provides vital information and support to patients and their families, campaigns for better heart health policies, and operates one of the UK's largest networks of charity shops and furniture stores.
Location: Headquarters in London, with research centres, offices, and over 740 charity shops and furniture stores across the UK
Popularity: One of the UK's most supported health charities, the British Heart Foundation has invested over 2 billion pounds in heart research and its charity shops are a familiar fixture on high streets nationwide.
Special Features: Pioneering cardiovascular research, over 740 shops and furniture stores, defibrillator placement programmes, heart health education, CPR training initiatives, and volunteering opportunities in retail, research support, and community health.
Link: British Heart Foundation

17. St John Ambulance

Description: St John Ambulance is the nation's leading first aid charity, providing first aid training, event medical cover, and community health services across England. Its volunteer first aiders provide medical support at thousands of events each year, from local fetes to major national occasions. The charity also trains hundreds of thousands of people in life-saving first aid skills annually.
Location: Headquarters in London, with centres, units, and volunteer teams across England
Popularity: One of the best-known volunteering organisations in the UK, St John Ambulance is recognised for its distinctive black and white uniform and its presence at events and emergencies nationwide.
Special Features: First aid training for the public and workplaces, volunteer first aiders at events, community health and wellbeing programmes, youth programmes for young people, ambulance services, and a wide range of volunteering roles in first aid, youth leadership, and event support.
Link: St John Ambulance

18. WaterAid

Description: WaterAid is an international charity focused on providing clean water, decent toilets, and good hygiene to everyone, everywhere. Founded in the UK in 1981, WaterAid works in some of the world's poorest communities to transform lives through access to safe water and sanitation. The charity also campaigns for governments and institutions to prioritise water and sanitation in their policies.
Location: Headquarters in London, with programmes operating in over 25 countries across Africa, Asia, and Central America
Popularity: One of the UK's most respected international development charities, WaterAid has reached millions of people with clean water and sanitation and is a powerful advocate for the global right to water.
Special Features: Clean water and sanitation programmes in over 25 countries, advocacy and campaigning for water rights, partnerships with local organisations, school WASH programmes, fundraising events, and volunteering opportunities in campaigning and community engagement.
Link: WaterAid

19. Girlguiding

Description: Girlguiding is the leading charity for girls and young women in the UK, offering a vast programme of activities, adventures, and personal development opportunities to girls aged 4 to 18 and beyond. With over 400,000 members, Girlguiding empowers girls to develop confidence, skills, and friendships through its network of Rainbow, Brownie, Guide, and Ranger units.
Location: Headquarters in London, with units and groups in communities across the entire United Kingdom
Popularity: The UK's largest youth organisation for girls and young women, Girlguiding has been empowering girls and women for over a century and remains one of the most recognised youth charities in the country.
Special Features: Programmes for girls aged 4 to 18 covering outdoor adventure, life skills, and community action, a nationwide network of volunteer leaders, international trips and exchanges, advocacy on issues affecting girls, and extensive volunteering opportunities for adult leaders and helpers.
Link: Girlguiding

20. The Conservation Volunteers (TCV)

Description: The Conservation Volunteers is a community volunteering charity that connects people with green spaces and environmental projects across the UK. Through practical conservation activities such as tree planting, habitat restoration, and community garden creation, TCV helps people improve their health and wellbeing while making a tangible difference to the natural environment.
Location: Headquarters in Doncaster, South Yorkshire, with projects and Green Gyms running across the UK
Popularity: One of the UK's leading environmental volunteering charities, TCV engages tens of thousands of volunteers each year in hands-on conservation and community greening projects.
Special Features: Green Gym fitness-through-conservation programme, tree planting and habitat restoration projects, community garden creation, health and wellbeing benefits of outdoor volunteering, corporate volunteering partnerships, and accessible opportunities for people of all ages and abilities.
Link: The Conservation Volunteers

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