# GiveWell **GiveWell** (legal name: The Clear Fund) is a **San Francisco-based charity evaluator** founded in 2007 by **[[Holden Karnofsky]]** and Elie Hassenfeld, and one of the three or four most institutionally important organizations in the Effective Altruism movement. GiveWell's methodology — the evidence-based evaluation of charity interventions, the quantitative estimation of cost-effectiveness measured in dollars-per-life-saved or dollars-per-DALY-averted, and the annual publication of a short list of "Top Charities" — became foundational for the broader EA movement and has directed an estimated **$1 billion+ in cumulative giving** across its eighteen years of operation. GiveWell's staff (~40-50 researchers and operational staff as of 2024) conducts the research in-house, publishing full reasoning including criticisms of recommended charities, explicit acknowledgments of uncertainty, and retrospective analysis of its own prior evaluations. The organization is formally a 501(c)(3) non-profit headquartered in Oakland, California. GiveWell matters for the KB for three reasons. First, it is the **operational predecessor and long-term partner of [[Open Philanthropy]]** — Karnofsky's 2014 pivot from GiveWell to what became Open Philanthropy grew out of the GiveWell Labs project, and the two organizations remain structurally intertwined: Open Philanthropy handles the larger and more cause-diverse grantmaking for Moskovitz-Tuna philanthropy, while GiveWell continues to focus on global-health-and-development retail grantmaking. Without GiveWell's 2007-2014 methodology development, Open Philanthropy's 2014-present institutional scale would not have been possible. Second, it is the **principal institutional embodiment of the evidence-based giving thesis** that is the operational heart of the EA movement — the thesis that some charities are dramatically more cost-effective than others at producing welfare outcomes, and that careful quantitative evaluation can identify the most cost-effective options. GiveWell's methodological rigor is what distinguished the EA movement from earlier "do your research" philanthropic movements. Third, GiveWell's **Top Charities list** — currently featuring Malaria Consortium, Against Malaria Foundation, Helen Keller International's vitamin A supplementation program, and New Incentives, among others — directs hundreds of millions of dollars of annual giving and represents the EA movement's practical bet on what the most cost-effective giving opportunities are. ## Founding (2007) GiveWell was founded by Holden Karnofsky and Elie Hassenfeld in mid-2007, initially as an evenings-and-weekends side project during their tenure as analysts at the [[Bridgewater Associates]] hedge fund. The founding context: - Karnofsky and Hassenfeld, both Harvard graduates in their mid-20s, had accumulated some savings and wanted to donate to charity - Finding existing charity-evaluation resources (Charity Navigator, BBB Wise Giving Alliance) to be focused on organizational characteristics (overhead ratios, financial transparency) rather than intervention effectiveness, they began researching charity effectiveness themselves - The initial research effort demonstrated that rigorous evaluation was considerably more time-intensive than they had anticipated, leading to the transition from side project to full-time work - They left Bridgewater in mid-2007 and formally established The Clear Fund as a 501(c)(3) in 2007 The founding is often cited as the operational origin of the Effective Altruism movement. When [[William MacAskill]] and [[Toby Ord]] founded [[Centre for Effective Altruism]] in 2011-2012, GiveWell was already the operationally-proven evidence-based-giving organization around which the intellectual EA movement could orient. ## Methodology GiveWell's research methodology, developed across 2007-2014 and continuously refined since, has several distinctive characteristics: ### Intervention-level focus Charities are evaluated based on the underlying interventions they deliver (insecticide-treated bed nets, deworming medications, vitamin A supplementation, direct cash transfers to the poor) rather than on organizational characteristics. This allows GiveWell to address the key empirical question — does this intervention produce welfare improvements? — before addressing the organizational question. ### Cost-effectiveness estimation For each recommended intervention, GiveWell produces a detailed cost-effectiveness estimate, typically in dollars-per-life-saved or dollars-per-DALY-averted (DALY = Disability-Adjusted Life Year). The estimates are explicitly stochastic and presented with uncertainty ranges. As of 2024, GiveWell's most cost-effective recommended interventions are estimated at approximately **$5,000-$7,000 per life saved**. ### Qualitative assessment Beyond the quantitative cost-effectiveness estimate, GiveWell conducts extensive qualitative assessment of: - **Room for more funding**: Whether a charity can effectively absorb additional funds - **Organizational strength**: Leadership quality, financial management, and track record - **Monitoring and evaluation systems**: Whether the charity is capable of measuring its own effectiveness - **Site visits**: GiveWell staff conducts in-person visits to recommended charities ### Radical transparency Perhaps the most distinctive GiveWell characteristic: full publication of research reasoning, explicit acknowledgments of uncertainty, and retrospective analysis of past errors. GiveWell publishes its detailed evaluations, internal debates, and revisions of prior assessments. The "Our Mistakes" page of the GiveWell website documents prior errors and methodology changes. ## Top Charities List GiveWell's annual (updated at least yearly, often more frequently) Top Charities list is its principal public output. As of 2024, Top Charities include: - **Malaria Consortium**: Seasonal Malaria Chemoprevention program in the Sahel - **Against Malaria Foundation**: Insecticide-treated bed nets distribution - **Helen Keller International**: Vitamin A supplementation for children - **New Incentives**: Cash-incentive programs for infant vaccination in Nigeria - **GiveDirectly** (at various periods, not always on the Top Charities list): Direct cash transfers to people in extreme poverty - **Evidence Action's Deworm the World Initiative**: Mass deworming programs The list has had varying members across years, with GiveDirectly, Deworm the World, and others moving on and off based on updated cost-effectiveness assessments and room-for-more-funding evaluations. ## GiveWell Labs and the Open Philanthropy Spin-off In 2011-2012, GiveWell launched "GiveWell Labs" — a project to expand beyond the narrow global-health focus of the existing Top Charities into additional cause areas. The Labs project: - Explored cause areas including U.S. policy, scientific research, animal welfare, and what became the longtermist / AI safety research agenda - Rapidly became the principal vehicle for [[Dustin Moskovitz]] and [[Cari Tuna]]'s philanthropic giving, as their Moskovitz-Tuna philanthropy scaled - Was formally spun out as Open Philanthropy Project (later Open Philanthropy) in 2014, with Karnofsky as executive director The GiveWell / Open Philanthropy split has been structurally stable since 2014: **GiveWell** continues to focus on retail global-health-and-development grantmaking, while **Open Philanthropy** handles the broader cause portfolio including longtermist causes, farm animal welfare, U.S. policy, and scientific research. The organizations share some operational infrastructure and have interlocking governance. ## Funding Scale GiveWell's cumulative influence across its operational history: - **Pre-2011**: Relatively small grants flows (~$1-10 million/year) - **2011-2014**: Growing through Good Ventures partnership (~$20-60 million/year) - **2015-2020**: Sustained growth (~$80-150 million/year) - **2021-2024**: ~$500 million+/year including Open Philanthropy's continuing partnership funding By 2024, GiveWell's cumulative directed giving exceeded $2 billion, with ongoing annual flows of ~$500 million. ## Leadership GiveWell's leadership structure since founding: - **Holden Karnofsky**: Co-founder; Executive Director (2007-2014); transitioned to Open Philanthropy leadership in 2014 - **Elie Hassenfeld**: Co-founder; Executive Director (2014-present) - **Neil Buddy Shah**: CEO (2022-present); GiveWell's first separate CEO distinct from the executive director role - **Research staff**: ~30-40 full-time researchers as of 2024 ## Connection to the KB Ecosystem - **[[Holden Karnofsky]]**: Co-founder; principal figure in the GiveWell-to-Open-Philanthropy transition. - **[[Open Philanthropy]]**: Operational successor and long-term partner. - **[[Good Ventures]]**: Principal long-term funder through the Moskovitz-Tuna philanthropy. - **[[Cari Tuna]] / [[Dustin Moskovitz]]**: Key patrons whose partnership with GiveWell in 2011-2014 produced the Open Philanthropy spin-off. - **[[Effective Altruism]]**: Operational origin organization for the movement. - **[[William MacAskill]]**: Intellectual counterpart in the Oxford EA movement; GiveWell was the operational predecessor to MacAskill's institutional work. - **Evidence-based giving**: Principal institutional embodiment of the methodology. ## See Also - [[Holden Karnofsky]] - [[Cari Tuna]] - [[Dustin Moskovitz]] - [[Open Philanthropy]] - [[Good Ventures]] - [[Centre for Effective Altruism]] - [[Effective Altruism]]