An independent, expert-led philanthropic advisory that helps major donors direct funding toward reducing catastrophic and existential risks, with a core focus on AI safety, biosecurity, and nuclear weapons policy.
An independent, expert-led philanthropic advisory that helps major donors direct funding toward reducing catastrophic and existential risks, with a core focus on AI safety, biosecurity, and nuclear weapons policy.
People
Updated 05/18/26Funding Details
Updated 05/18/26- Annual Budget
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Org Details
Updated 05/18/26Longview Philanthropy is an independent, expert-led philanthropic advisory organization that helps major donors achieve maximum positive impact with their giving. Founded in 2018 by Natalie Cargill, a former barrister who left a career in human rights and law, Longview operates on a venture capital-inspired model, seeking to uncover neglected funding opportunities with the potential for lasting impact at scale. The organization provides bespoke donor education, grant recommendations, grant transfer facilitation, and ongoing progress reporting, all completely free of charge. Longview primarily serves donors giving over $1 million per year through its advisory services, though it also offers AI grant recommendations to donors giving over $100,000 per year through its Frontier AI Fund. Longview's core priority is emerging technology, with most grantmaking concentrated in three focus areas: artificial intelligence safety and governance, biosecurity, and nuclear weapons policy. In the AI domain, Longview supports cutting-edge technical research, policy development, and field-building efforts that address urgent risks while preserving AI's potential. The organization has directed over $133 million toward AI risk reduction as of early 2026. Notable grantees include the Center for Human-Compatible AI at UC Berkeley and organizations working on model evaluation, threat research, and hardware-enabled verification mechanisms. Longview manages several funding vehicles: the Frontier AI Fund (a private fund for donors giving over $100,000), the Nuclear Weapons Policy Fund (with both private and public components), the Emerging Challenges Fund (a public fund open to all donors addressing global catastrophic risks), and the Digital Sentience Fund (launched in 2025). The organization also participates in collaborative funding consortiums, including partnerships with the Carnegie Corporation of New York. In 2025, Longview directed over $60 million across its private and public funds and bespoke advisory services, supporting more than 50 projects aimed at reducing catastrophic and existential risks. The organization has expanded its grantmaking team significantly, growing from 4 to 10 grantmakers between early 2025 and January 2026, with six AI grantmakers and four nuclear grantmakers. Longview operates as two legal entities: Longview Inc. Ltd, a not-for-profit company limited by guarantee in England and Wales (company number 14444004), and Longview Philanthropy USA Inc., a 501(c)(3) organization in the United States (EIN 93-2664730). The organization has offices in London, Washington D.C., and the San Francisco Bay Area, with staff also based in New York. Leadership includes Natalie Cargill as Founder and President and Simran Dhaliwal as CEO.
Theory of Change
Updated 05/18/26Longview believes that private markets systematically underinvest in managing catastrophic and existential risks because the dangers of advanced AI, bioweapons, and nuclear conflict affect everyone but profits are concentrated in a handful of companies and actors. Philanthropy is therefore essential for advancing the public good in these areas. By providing free, expert-led, research-driven grant recommendations to major donors, Longview channels substantial private wealth toward the most neglected and high-impact interventions for reducing existential risk. Their theory is that by identifying underfunded priority areas and catalyzing emerging fields, such as hardware-enabled AI verification mechanisms, US AI policy advocacy, and digital sentience research, they can shape the trajectory of advanced technology development and reduce the probability of catastrophic outcomes. Longview aims to ensure every grant helps as many individuals as possible, counting everyone equally including future generations.
Grants Received
Updated 05/18/26Projects
Updated 05/18/26
A private philanthropic fund run by Longview Philanthropy to support research and public education on potential digital minds and AI sentience.
A public fund managed by Longview Philanthropy that supports organisations addressing global catastrophic risks from emerging technologies.
A private discretionary grantmaking fund managed by Longview Philanthropy to support high-impact work that prepares the world for frontier AI systems.
Discussion
Key risk: Longview’s counterfactual value is uncertain, as its growing, mainstream-facing portfolio and consortium partnerships risk prioritizing central, legible grants that largely track existing EA/Open Phil patterns over more contrarian, high-upside bets in AI safety.
Case for funding: By offering free, expert-led advisory services to megadonors and running targeted funds, Longview has already redirected over $133M into neglected AI safety and governance—including catalyzing areas like hardware-enabled verification and model evaluation—making it a highly leveraged way to turn otherwise non-optimally deployed wealth into x-risk reduction.