The Social Impact Investors Group (SIIG) is a vibrant and innovative group that exists to support foundations interested in starting or who are currently undertaking social impact investing. SIIG is facilitated by the Association of Charitable Foundations (ACF) and led by a member steering group.

The Big Green Match Fund is seeking 'champions' (trusts, foundations, philanthropists and companies) to join the 2025 campaign, which will multiply your funding for environmental organisations and incentivise public giving.

A collaborative environmental fund for the UK Overseas Territories, which collectively host 94% of the UK’s endemic biodiversity.

Developing a trauma informed grantmaking community of practice to increase trauma informed grantmaking and learn from funders’ good practice.

Advocating for a distinct field of UK Rural Philanthropy, building evidence and increasing dedicated investment for change in the countryside

We are coming together to commission a research and scoping exercise to inform grantmaking aimed at improving the family courts.

Place Matters are developing an online map capturing data on place-based funding for projects aiming to tackle a systemic social challenge

This fund supported young climate activists by providing unrestricted funding to enable them to access more holistic support including training, peer networks and greater audience reach

Big Give, Global's Make Some Noise and NCVO are establishing a match funding campaign to support small charities in the UK, coordinating with Small Charity Week 2025

The Impact Alliance seeks to proactively tackle pressing community issues in the West of England through an innovative, collaborative and strategic funding approach.

A pooled fund taking bold approaches to bolster the pop culture for social justice field in the UK

Peter Brach, founder at Propel Philanthropy, began this group with a conviction that we could achieve exponential progress by investing in broad, cross-cutting solutions. We want to bring many more funders into our conversations.

The need for a strengthened sense of cohesion and belonging has never been greater. Belong is designing a programme for Local Authority areas most at risk of future unrest.

Muslim Charities Forum is seeking funders who are open to engaging with UK Muslim communities and those hard-to-reach, to alleviate the effects of systemic bias, inequality and low social mobility

A collaborative sprint process, deepening our practice of acting responsively and facing some of the bigger structural challenges needed

Enabling funders to be better networked, better informed and work together more effectively to improve and maximise their support to North East communities.

A network of foundations and individual donors supporting environmental causes. EFN aims to increase the amount of financial support for environmental causes and improve its effectiveness.

Promoting collaboration, listening and learning among funders and organisations to support and strengthen safeguarding practices globally.

Enabling women’s access to justice through supporting women-centred, holistic and trauma-responsive approaches to diverting women from crime.

Join BBC Children in Need and other funders as we work to build a national strategic movement to tackle the impact of UK child poverty.

Islington Giving is a coalition of local people, businesses and funders raising funds, supporting local projects and sharing power in Islington.

Youth Endowment Fund is looking for partners to co-invest in a first-of-its-kind three-year Summer Jobs Programme for young people at risk of involvement in violence in England and Wales.

Supporting music projects that make a difference to people’s physical and mental health. The fund remains open to potential new investors.

A collaboration of funders mobilising resources and learning together on adolescent girl leadership, youth protagonism and ecosystems of support.

At Battersea, our grant-making team are interested in connecting with other funders to explore opportunities to collaborate and share knowledge to help more owners and their pets.

Social Investment Business is looking for partners to develop a funding and support programme for community organisations to transition to heat networks.

An open invitation for funders of all sizes to come together as peers, exploring the opportunities and challenges of AI

The Greater London Authority's Financial Hardship team is interested in working with other funders who are funding, or considering funding, community-based welfare advice in London.

The UK Democracy Fund is a non-partisan pooled fund hosted by Joseph Rowntree Reform Trust to further democratic participation.

The #iwill Fund brings together a collaborative group of funders creating more opportunities for young people to take part in high-quality youth social action.

The Astra Foundation is hoping to identify other funders who may be interested in aligned funding to support organisations developing the UNEA global treaty to end plastic pollution

Plymouth Partners & Funders Forum is a group of funders and public sector partners committed to working together in a joined up, transparent way to benefit Plymouth's voluntary, community and social enterprise sector and the people of Plymouth.

Join our learning community to develop a payment for involvement policy that is fair and equitable.

Convening intermediary organisations who fiscally host and sponsor unincorporated groups, to share insights, challenges and best practice within this emerging infrastructure service supporting grassroots changemakers across the world.

Collaborative programme seeking to tackle the root causes of gendered and child poverty in Middlesbrough

An informal collaboration between several Scottish funders, OSCR and others exploring how to make reserves work better to support a dynamic and resilient third sector.

Opportunity to test and explore the appetite and need for 'community tech' - technology built with, by and for communities, that is locally accountable and creates local value.

What's Possible is an Experiential Learning Institute and $1M pooled fund presented by the Children’s Rights Innovation Fund (CRIF), in partnership with We Trust You(th). What’s Possible will enable a cohort of donors to learn and plan WHILE funding participatory youth-driven grantmaking.

GiveOut is an international LGBTQI community foundation, looking to collaborate with other trusts and foundations to fund LGBTQI activism worldwide.

A peer support group for people with a role to undertake or support evaluation and learning within their fund and amongst grant-holders.

The Enterprise Grants Taskforce brings together funders looking to support the development of earned income across the sector.

A partnership which worked to make the youth sector more accountable to those it exists to serve: young people.

Scotland Funders’ Forum is a forum in Scotland who are committed to best practice in funding.

The Collaboration Circle is an exciting new space to host pooled funds on behalf of different funder collaborations.

An opportunity for funders to collaborate together, and in partnership with the Institute of Conservation, to support conservation internships in specialist areas deemed 'at risk'.

A shared framework for funders to capture data on funding for groups who experience structural inequity.

A place for philanthropic funders to connect, develop new forms of strategy, and work towards greater impact together. Our guiding star is to support economies in service to life, with active workstreams on investment, tax and the legal rights of nature.

The Social Change Nest is running a working group for funders interested in best supporting grassroots initiatives.

A new, 10-year, unrestricted pooled fund for the social sector in Edinburgh to work upstream towards big, transformational change for people.

A funding mechanism hosted by the Environmental Funders Network, to help environmental organisations respond quickly to crises or opportunities.

A community of practice for funders seeking guidance and peer support that will help them to more effectively resource narrative change.

The UK Overseas Territories Learning Series was an opportunity for funders to discover more about these diverse environments, how and why they are under threat and what can be done to safeguard their future.

A collective on a mission to drive inclusive social investment in the UK, through the convening of sector-wide groups, commissioning research, and knowledge sharing.

Join the EIIG to learn about environmental impact investing and meet other investors

Youth Endowment Fund is seeking funding partners to test the impact of Detached Youth Work, helping to build evidence about its effectiveness for children and young people.

Lightning Reach is a one-stop online grants portal transforming how people in financial hardship access support.

Building a community of people and organisations with diverse backgrounds, strengths, and experience, to transform access to justice in the UK immigration system. Includes information about emerging needs of Palestinians in the UK.

A joint initiative, which ran from 2020 to 2024, focused on supporting the provision of specialist social welfare legal advice across the UK.

Aiming to connect, strengthen and grow the agroecology movement and speed up a just transition for the UK farming and food system, by improving the flow of resources through power-aware funding. Now open to new funders joining.

Join Joffe Charitable Trust and other funders supporting a great coalition fixing this crucial issue that enables all sorts of social harm.

Aiming to bring about systemic change in support for London's civil society organisations.

Peer action learning for people working in grant-making who want to learn together and take action to shift power in funding.

Connect with Effective Altruism UK to optimise philanthropy using evidence-based strategies, accessing top resources and networks for impactful giving

Building the first community-level pooled fund in the UK for existing and emerging local news initiatives

A cross sector group of funding initiatives concerned with the role of the law in addressing inequalities and achieving a more just society.

The Forum was established as an information exchange between local grant giving funders. It meets four times a year, in person.

Investing in Buckinghamshire's next generation - a fund for young people, by young people

The East of England Funders Forum brings together national, regional and local funders who currently fund, or who are interested in funding, groups in the East of England region.

Multiply your funding for arts and cultural organisations and incentivise public giving

Funders supporting an improvement in the mental health of front-line voluntary and community sector (VCS) workers, by collaborating to share practice and implement a co-ordinated approach.

Informal network to bring together those running family foundations who are based in Surrey

A network of more than 80 funders working with the Living Wage Foundation to end in-work poverty and low pay. We would like to widen our pool of organisations collaborating to achieve these aims.

Funders dedicated to advancing youth organising as a strategy for youth development and social justice.

Co-op Foundation is interested in potential match funding partners for round 3 of its Carbon Innovation Fund, aiming to reduce carbon emissions from the food and farming industries.

The Warm Welcome campaign has launched for winter 2023/34, including working with funders to co-ordinate support for Warm Spaces in communities across the UK.

A new method of assessing the transparency, accountability and diversity of UK foundations, incentivising and supporting them to improve their practices

Brings together senior representatives from the UK’s major science and health research funders to discuss funding policy development and implementation, best practice, emerging issues and possible alignment.

A collective of Scotland-focused funding officers who lead on or who are involved in the development and delivery of funder safeguarding policy and practice within their organisations.

Managed by Cornwall Community Foundation, we are dedicated to investing in the women and girls of Cornwall. Our members invest their time, skills and money to improve lives, inspire hope and nurture ambition.

Bringing together businesses across Cornwall and The Isles of Scilly to support the communities they work in.

Help us improve young women’s mental health in the UK through funding or influencing policy/practice around age and gender approaches.

Participatory grantmaking for climate justice movements led by individuals from the global south and frontline communities.

This group comes together each month to support our collective place-based focus on communities in Buckinghamshire.

Teaching Staff Trust provides hardship grants to people working in the education sector. We are looking to collaborate with other funders to help meet an explosion in demand for support.

We are a giving circle supporting women and girls in Bath and the surrounding area. We welcome new members.

Footwork Trust is looking for collaborators to help develop the next phase of an innovative funding and support programme for local people to turn their bold ideas into lasting, positive change for communities.

Supporting artists and producers working with music and live performance to sustain their practice through Covid-19.

A collaborative fund to improve vulnerable and disadvantaged women’s mental health and financial resilience.

The Voice for Philanthropy, Beacon exists to encourage more private assets to be used for public good.

A group of funders formed a learning and action community to embed Diversity, Equity and Inclusion throughout their work. Over two years, they built a body of practice which is now available for the whole sector to benefit from.

An informal group of funders committed to working together in a joined up way to benefit Gloucestershire.

The Law for Change fund exists to increase the level and quality of funding for legal actions in the public interest. This first-of-its kind initiative enables donors to achieve collective results by pooling resources for low-cost, high impact legal cases that would otherwise not get heard.

Co-designing solutions to the cost of care and financial insecurity with community organisations and residents in Manchester.

Building civic power through growing grassroots community organising.

A collective impact partnership working towards transformational change on NRPF - an issue of racial and economic justice, not just migration.

A funding partnership between The Gannochy Trust and Perth and Kinross Council to support more collaborative, universal youth work provision.

A group of funders that seek to improve employment outcomes for young people. We are building a shared ambition for change in how young people progress towards and into work.

A group of funders and other organisations are working to build a united movement for community power, spanning places and communities across the country and across the political spectrum.

Newham Council are working with London Funders to explore how we can support greater funder collaboration and activity in Newham

Network bringing together charities with investments to further their missions through responsible investment.