Based in New York City, New York, USA

Founder and CEO of Acumen — the global non-profit impact investment fund that pioneered the concept of "patient capital," investing in companies delivering affordable goods and services to populations living on less than $4 a day — and the most intellectually rigorous and morally serious voice on the intersection of business, poverty alleviation, and human dignity globally. Author of The Blue Sweater and Manifesto for a Moral Revolution, named 2026 Henry Crown Fellow of the Aspen Institute, and throughout 2025-2026 one of the most consistently active voices on LinkedIn, writing from the field in Southeast Asia, Latin America, and beyond. Her work challenging both traditional charity and exploitative capitalism with a third path — patient, dignified investment in human potential — continues to be among the most practically influential frameworks in the global impact sector.

Based in Boston, Massachusetts, USA

Humanitarian activist, author of Uncharitable: How Restraints on Nonprofits Undermine Their Potential and Charity Case, and the most provocative and consequential voice in the global conversation about how non-profits are funded, evaluated, and constrained. His 2013 TED Talk on the way we think about charity — which has been viewed tens of millions of times — remains one of the most watched and most shared critiques of the non-profit sector's structural dysfunction. Throughout 2025-2026, Pallotta's continued advocacy for rethinking the overhead myth, for paying non-profit leaders fairly, and for investing in growth and scale rather than minimising administrative costs continued to be among the most important public contributions to how donors, foundations, and non-profit leaders think about impact measurement and organisational investment.

Based in Montgomery, Alabama, USA

Founder and Executive Director of the Equal Justice Initiative — which has won relief for over 140 wrongly condemned death row prisoners and challenged excessive and unjust sentencing — author of Just Mercy (adapted into a major film), and the most morally authoritative voice in America on criminal justice reform, racial inequality, and what genuine justice requires. Throughout 2025-2026, as criminal justice policy became increasingly contested, Stevenson's continued work at EJI, his public speaking, and the ongoing resonance of Just Mercy continued to make him one of the most widely respected and deeply trusted voices on what justice, dignity, and racial equity actually require in practice. His MacArthur Fellowship, his Harvard Law professorship, and his thirty years of direct client representation give his public voice a credibility that no commentator alone can match.

Based in New York City, New York, USA

Founder of Teach For America — whose founding idea, that top graduates should commit two years to teaching in under-resourced schools, has been replicated in over 60 countries through Teach For All — CEO of Teach For All, and the most globally consequential education equity organisation builder of the past three decades. Throughout 2025-2026, Kopp's continued leadership of Teach For All's global network and her public voice on what collective leadership for educational equity requires continued to make her one of the most practically experienced and widely respected social impact leaders in the world. Her model of mobilising talent for public good has spawned an entire generation of social entrepreneurs who cite her as a founding inspiration.

Based in San Francisco, California, USA

Co-founder and former President of Kiva — the peer-to-peer microfinance platform that has facilitated over $2 billion in loans to entrepreneurs in over 80 countries, with a repayment rate of around 96% — and one of the most practically impactful voices on what financial inclusion at scale looks like when it is built on dignity and trust rather than charity. Throughout 2025-2026, Shah's continued engagement with the impact sector through speaking, investing, and public writing continued to make him one of the most respected and credible voices on what genuinely transformative financial inclusion requires. His combination of having built one of the most successful impact platforms in history and his subsequent work as an investor and advisor gives his perspective unusual depth and practicality.

Based in San Jose, California, USA

Pioneer of digital transformation for non-profits, co-author of The Networked Nonprofit, Measuring the Networked Nonprofit, and The Happy Healthy Nonprofit, researcher including The Emerging Nonprofit Leader's Playbook and #AI4Giving: Unlocking Generosity with Artificial Intelligence, creator of Beth's Blog — one of the first and most consistently valuable non-profit sector blogs, running since 2003 — and the most practically useful voice on digital strategy, AI adoption, and organisational wellbeing for non-profit professionals globally. Throughout 2025-2026, Kanter's research on AI in philanthropy and her continued blogging and speaking continued to make her the most trusted guide for non-profit professionals trying to understand and navigate rapid technological change in their organisations.

Based in Franklin, Tennessee, USA

Founder and CEO of charity: water — the non-profit that has brought clean and safe drinking water to over 17 million people in 29 countries since 2006 — and the most compelling storyteller in the non-profit sector, having built charity: water into one of the most recognised and best-funded humanitarian organisations in the world through a combination of radical transparency, extraordinary visual storytelling, and a 100% model that ensures all public donations go directly to water projects. Author of Thirst: A Story of Redemption, Compassion, and a Mission to Bring Clean Water to the World. Throughout 2025-2026, Harrison's continued leadership of charity: water, his public speaking, and his social media presence continued to make him the most admired non-profit founder-storyteller in the world — the clearest example of how personal brand and organisational mission can reinforce each other at the highest level.

Based in Seattle, Washington, USA

Philanthropist, author of The Moment of Lift: How Empowering Women Changes the World, and following her departure from the Bill & Melinda Gates Foundation in June 2024, the founder of Pivotal Ventures and Pivotal Philanthropy — her independent investment and incubation company focused on women's power, caregiving, and US democracy. Throughout 2025-2026, French Gates's philanthropy — including her landmark $1 billion commitment to reproductive rights organisations and her continued investments in women's economic empowerment — made her one of the most consequential and most discussed philanthropic voices in the world. Her independence from the Gates Foundation gave her the freedom to direct resources toward causes that the Foundation's consensus model would have constrained.

Based in San Francisco, California, USA

Philanthropist and the most transformational donor in the history of American philanthropy — having given away over $17 billion since 2019 through a model of unrestricted, trust-based giving to thousands of organisations that traditional philanthropy had systematically underfunded. Her approach — no applications, no reporting requirements, no strings attached — has fundamentally challenged the power dynamics of institutional philanthropy and prompted a global conversation about what respectful, effective giving looks like. Throughout 2025-2026, Scott's continued giving and the ongoing global discussion of her model continued to make her the most consequential single individual reshaping how major philanthropy is practised. She rarely speaks publicly, which makes her model rather than her voice the primary form of influence — and the model is extraordinary.

Based in Brooklyn, New York, USA

Author of Winners Take All: The Elite Charade of Changing the World — the most widely read and most discussed critique of the way billionaires and corporations use philanthropy and impact investing to avoid structural reform — former New York Times correspondent, Editor-at-large at Time, and the most intellectually challenging voice on what genuine social change requires as opposed to what wealthy elites are willing to offer. Throughout 2025-2026, Giridharadas's writing, speaking, and media appearances continued to make him the most important critical voice on elite philanthropy and what the gap between genuine social change and cosmetic generosity actually looks like. His willingness to challenge the most powerful people in the room — in their own rooms — makes him uniquely consequential in this space.

Based in Atlanta, Georgia, USA

Founder of Fair Fight Action — the organisation that registered over 800,000 voters in Georgia and is widely credited with shifting the state's political balance — author of multiple books including Our Time Is Now and Lead from the Outside, and one of the most practically accomplished voting rights and civic participation advocates in American history. Throughout 2025-2026, as voting rights faced increasing challenges, Abrams's continued advocacy, writing, and public voice on civic participation, economic justice, and what authentic leadership in public life requires continued to make her one of the most consequential and widely respected social impact figures in the country. Her combination of legal training, political experience, and grassroots organising credibility makes her one of the most multi-dimensional voices in American civic life.

Based in Oakland, California, USA

CNN political commentator, founder of Dream Corps — the social justice accelerator working on criminal justice reform, green jobs, and tech inclusion — former Special Advisor for Green Jobs to President Obama, and one of the most publicly visible and persuasive advocates for a politics that bridges racial justice, economic opportunity, and environmental sustainability. Throughout 2025-2026, Jones's television presence, speaking, and continued leadership of Dream Corps's #cut50 criminal justice reform initiative continued to make him one of the most widely watched and practically engaged social impact voices in American public life. His ability to make social justice arguments compelling to audiences across the political spectrum is increasingly rare and valuable.

Based in the South Bronx, New York, USA

MacArthur "Genius" Fellow, urban revitalisation strategist, founder of Sustainable South Bronx — which brought the first greenway to the South Bronx and fundamentally changed how environmental justice is practised — and one of the most practically experienced voices on what genuine community-led economic development requires, specifically for communities that have been systematically disinvested. Throughout 2025-2026, Carter's continued work, speaking, and public voice on talent retention in low-income communities — her framework that the talent gap in poor neighbourhoods is a retention problem, not a pipeline problem — continued to be among the most practically challenging and widely cited contributions to community economic development thinking. Her TED Talk on greening the ghetto remains one of the most important urban environmental justice presentations ever delivered.

Based in New York City, New York, USA

President of the Ford Foundation — one of the most important philanthropic institutions in the world, with an endowment of over $16 billion — author of From Generosity to Justice: A New Gospel of Wealth, and the most senior and most publicly engaged philanthropic institutional leader in the world. Throughout 2025-2026, Walker's public writing on what genuine justice-oriented philanthropy requires, his leadership of the Ford Foundation's ongoing commitment to building social movements rather than just funding programmes, and his advocacy for what he calls "justice philanthropy" — going beyond charity to address the systemic causes of inequality — continued to make him the most consequential and most intellectually serious voice in institutional philanthropy. His own journey from poverty in rural Texas to leading one of the world's greatest foundations gives his advocacy a personal grounding that institutional leadership rarely provides.

Based in Chicago, Illinois, USA

Founder and President of Interfaith America — the organisation that has become the most important voice on religious diversity as a civic asset in America rather than a source of conflict — author of Acts of Faith, Sacred Ground, and We Need to Build, former member of President Obama's Advisory Council on Faith-Based Neighbourhood Partnerships, and one of the most practically effective bridge-builders across religious, racial, and political divides in American public life. Throughout 2025-2026, as religious and cultural polarisation intensified, Patel's continued work, writing, and public voice on what genuine interfaith cooperation requires — and what it can accomplish — continued to make him one of the most important and practically useful social impact voices in the country.

Based in Los Angeles, California, USA

Founder of Mayors for a Guaranteed Income, former Mayor of Stockton (where he implemented one of the first city-level guaranteed income pilot programmes in the US), founder of End Poverty in California, and one of the most practically experienced and publicly engaged voices on guaranteed income, economic justice, and what rewriting the American social contract actually requires. Throughout 2025-2026, Tubbs's continued advocacy for guaranteed income — including managing the national network of mayors piloting similar programmes — his writing, and his public speaking continued to make him the most credible and practically grounded young voice in American economic justice advocacy. His own story — raised by a teenage single mother while his father was in prison, becoming mayor of his hometown at 26 — gives his policy advocacy an authenticity that most advocates cannot claim.

Based in Hollywood, Florida, USA

Founder and CEO of BMe Community — the asset-based approach to community building that has become one of the most widely adopted frameworks for working with Black men and communities in America — and creator of Asset-Framing, a methodology for describing and engaging human beings and communities through their aspirations and contributions rather than their challenges and deficits. Throughout 2025-2026, Shorters's work, speaking, and advocacy for Asset-Framing continued to make him one of the most practically influential voices on how narratives about Black men, marginalised communities, and social change are constructed — and how changing those narratives changes what is possible. His framework is increasingly adopted by foundations, non-profits, and government agencies trying to move from deficit-based to asset-based approaches to community engagement.

Based in Brooklyn, New York, USA

Author of Decolonizing Wealth: Indigenous Wisdom to Heal Divides and Restore Balance — one of the most widely read and most discussed books on racial equity in philanthropy — and the most important voice on what genuinely decolonising the practice of giving actually requires. Throughout 2025-2026, Villanueva's writing, speaking, and advocacy on what philanthropic institutions must do differently to dismantle rather than reinforce racial inequality in their funding practices continued to make him one of the most cited and most challenging voices in the social impact sector. His combination of Native American heritage, direct experience working inside philanthropic institutions, and rigorous framework for understanding philanthropy as an extension of colonial power structures gives his critique an authority and specificity that most equity advocates cannot match.

Based in Seattle, Washington, USA

Executive Director of RVC (Rooted in Vibrant Communities), creator of Nonprofit AF — the most widely read and most entertainingly written non-profit sector blog in the world — and the most important voice on non-profit sector equity, specifically on the ways that philanthropic culture systematically disadvantages organisations led by and serving communities of colour. Throughout 2025-2026, Le's weekly blog continued to be the most widely shared non-profit sector commentary available — his combination of genuine humour, sharp analysis, and deep sector knowledge making him the most effective critic of non-profit culture's structural inequities. His willingness to name the ways that white-led philanthropy constrains the organisations doing the most important work in marginalised communities has made him one of the most important and most discussed voices in the sector.

Based in Sleepy Hollow, New York, USA

Co-author of The Networked Nonprofit alongside Beth Kanter, futurist voice on AI and philanthropy, technology and social change expert, and author of research including work on how AI is reshaping fundraising, advocacy, and non-profit operations. Throughout 2025-2026, Fine's public writing, speaking, and advocacy on what AI means for civil society organisations — both the opportunities it creates and the risks it poses for equity and democratic participation — continued to make her one of the most important and forward-looking voices in the non-profit sector. Her long-standing focus on how technology can serve social movements rather than simply optimise organisations gives her perspective a political and strategic depth that most technology voices in the sector lack.

Based in Baltimore, Maryland, USA

CEO of Common Future — the organisation working to build an economy that works for everyone by supporting cooperatives, community land trusts, and alternative economic models — and one of the most important voices on what genuinely inclusive economic development requires beyond the mainstream impact investing and non-profit models. Throughout 2025-2026, Foxworth's writing, speaking, and leadership of Common Future's work on community wealth building, solidarity economy, and what economic justice requires structurally rather than incrementally continued to make him one of the most practically consequential and intellectually serious voices on economic justice in the US.

Based in Chicago, Illinois, USA

Co-director of Caring Across Generations, Executive Director of the National Domestic Workers Alliance — which she built into the most important voice for the 2.5 million domestic workers in the US — author of The Age of Dignity, and one of the most effective organisers and most publicly engaging advocates in American labour and care economy policy. Throughout 2025-2026, as AI-driven automation threatened jobs in care and domestic work and as the American care economy faced increased political pressure, Poo's continued advocacy, writing, and public voice on what valuing care work requires — economically, politically, and culturally — continued to make her one of the most important and practically effective social impact voices in the country. Named one of TIME's 100 Most Influential People multiple times.

Based in Princeton, New Jersey, USA

Co-founder of CHOOSE — the organisation she launched at 17 alongside Winona Guo to address racial literacy gaps in American education — author of Tell Me Who You Are (co-authored with Guo), and one of the most compelling young voices on what racial literacy in education actually requires and why the way most schools teach race fails both white students and students of colour. Throughout 2025-2026, Vulchi's continued work building CHOOSE's racial literacy curriculum, her speaking, and her public advocacy on what genuine antiracist education looks like in practice continued to make her one of the most practically useful and intellectually honest voices on race in American education — someone who earns her place on this list through the quality of her framework and the reach of her impact rather than institutional seniority.

Based in Scarsdale, New York, USA

Former Chief Innovation Officer at Acumen, co-founder of 60 Decibels — the social impact measurement organisation that has built the most practical and widely deployed tool for measuring outcomes from the perspective of the people being served rather than the organisations doing the serving — and one of the most rigorous and practically useful voices on what genuine impact measurement requires. Throughout 2025-2026, 60 Decibels's continued growth and Dichter's public writing and speaking on social impact measurement, generosity, and what the social sector's obsession with metrics misses continued to make him one of the most practically influential voices on how the sector evaluates and improves its own work. His blog and writing on the practice of generosity are among the most genuinely useful in the sector.

Based in San Francisco, California, USA

CEO of Tides — one of the largest and most influential philanthropic infrastructure organisations in the US, managing over $200 million in grants annually and providing fiscal sponsorship to thousands of social change projects — former Executive Director of the Center for Social Innovation at Stanford's Graduate School of Business, and one of the most experienced and publicly engaged voices on social innovation, systems change, and what building durable philanthropic infrastructure requires. Throughout 2025-2026, Deiglmeier's leadership of Tides during a period of significant pressure on philanthropic infrastructure — including the political targeting of grant-making organisations — and her public voice on what protecting and strengthening civil society requires continued to make her one of the most consequential practitioners in the US philanthropic sector.