The leading membership association uniting UK foundations and grant-makers.
Diverse, vibrant, and effective foundations working together for social good.
We strengthen trusts and foundations so they can rise to the challenges of our times.
ACF is the leading membership association for foundations and independent grant-makers in the UK. Members access specialist networks, learning events, research resources, and collaborative initiatives designed to enhance their grant-making effectiveness and impact.
Founded on principles of diversity, vibrancy, and collective action for social good.
ACF has established itself as the central hub for UK philanthropy, supporting thousands of foundations through member networks, specialist working groups, learning seminars, and evidence-based research.
The association's Stronger Foundations initiative demonstrates how members are translating strategic priorities into real-world impact across social challenges including climate action, housing solutions, and community resilience.
Three registers of support, built around the way foundations actually work.
Specialist networks and special interest groups connecting foundation leaders, trustees, and staff. Includes funder collaboratives such as the Funder Commitment on Climate Change and the Funders Collaborative Hub for peer learning and coordinated action.
Rigorous research and practical resources including the annual Salary and Operations Survey Report, Stronger Foundations case study collections, and member briefings on emerging issues and best practice in philanthropy.
Comprehensive learning programme including investment seminars, parliamentary receptions, the annual AGM, and a curated events calendar. Partnerships with Official Partners broaden investment expertise and sector knowledge.
Networks, research and learning turn continuously into one another — each strengthening the next, coordinated across the membership.
Bringing foundations together across networks and collaboratives to share learning, coordinate action, and amplify collective impact.
Equipping foundations with rigorous research, practical resources, and development opportunities to strengthen their grant-making and social outcomes.
Supporting a vibrant ecosystem of foundations of all sizes and focus areas, united in commitment to social good.



ACF's Annual General Meeting, where leadership presents organisational priorities and members shape the association's future direction.
The annual gathering of ACF members with policymakers and thought leaders to influence philanthropy's role in UK social policy.
Specialist learning events on philanthropic investment strategy and practice, delivered in partnership with leading investment expertise firms.
Whatever the size or focus of your foundation, ACF membership connects you to peer networks, rigorous research, and a learning programme built around the real work of grant-making.
Support ACF's work strengthening trusts and foundations across the UK, or explore what membership could mean for yours.