We search for the charities that save or improve lives the most per dollar.

Joined April 2009
59 Photos and videos
Malaria kills ~600,000 people a year. GiveWell has directed $1B to malaria prevention—with our growing research team, we're expanding the work: funding new studies, increasing core program coverage, & exploring other prevention strategies. Read more ⬇️ bit.ly/4apLgo4
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Don't miss tomorrow’s webinar at 12 PM ET / 9 AM PT! Researchers will discuss our evaluations of 4 past grants for: 1️⃣ Childhood vaccinations 2️⃣ Safe water 3️⃣ Insecticide-treated nets 4️⃣ Pneumonia treatment for children We hope to see you there! bit.ly/4tN1UWA
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🎧 Livelihoods programs—which increase the economic well-being of people in extreme poverty—are an area we've long supported. We've recently expanded this work with a new, dedicated team. CEO Elie Hassenfeld Sr Program Officer Adam Salisbury dig in: bit.ly/4ugA83S
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📣 New speaker alert! Adam Salisbury, Senior Program Officer, joins our June 9 webinar on how GiveWell evaluates whether a grant achieved the impact we initially estimated—and how we use those findings to make better impact estimates over time. Register: bit.ly/4tN1UWA
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📢 We're hiring Senior Researchers across 6 grantmaking teams: nutrition, water, vaccination, livelihoods, new areas, & cross-cutting! We're aiming to grant at least $500M to save & improve lives this year. Be part of that work—role links in 🧵
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Nutrition: grnh.se/x1z6vtj48us Water: grnh.se/31uwh1658us Vaccination: grnh.se/0xmkypz48us Livelihoods: grnh.se/t37mm68s8us New Areas: grnh.se/2g0k4ukm8us Cross-Cutting: grnh.se/io2k33py8us 👉Read about our subteam strategies: bit.ly/4fbHodG
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⏰ Less than 2 weeks until our webinar, Looking Back to Give Better: How GiveWell Evaluates Its Grantmaking! Join us Tuesday, June 9 for a conversation about grant lookbacks—evaluations that help us understand if our funding achieved the estimated impact. bit.ly/4tK1b8i
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GiveWell has granted $5M to the @DIVFund to identify and support promising innovations for safe water through their RFP. Our grant aims to build a pipeline of potential opportunities that GiveWell could consider for future funding. Learn more and apply! bit.ly/3RwNUSz
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🎧 Anemia (commonly caused by iron deficiency) affects ~2 billion people. But understanding how much iron programs improve lives is surprisingly hard. CEO Elie Hassenfeld Researcher Andrew Martin discuss our work on iron our grants to @FortifyHealth: bit.ly/4dG9FGT
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Our May newsletter is out featuring: 📈 A podcast episode on our 2021 grant evaluation $10M renewal to @fortify_health 🔎 New Senior Researcher roles 💰 A grant funding 3 pilot variations of @GiveDirectly's cash transfer program Read it on our blog ⬇️ bit.ly/4nISMjx
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🎧 Our research doesn't end once we've made a grant. In our latest episode, go "Behind the Analysis" of an @AgainstMalaria net distribution grant in the DRC, featuring a conversation from our internal staff podcast for the first time: bit.ly/493U3vr
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GiveWell co-founder & CEO Elie Hassenfeld named to 2026 TIME100 Philanthropy list 👉 bit.ly/4drvYA2 @TIME highlights a core idea that's guided GiveWell from the start—rigorous analysis can help donations do as much good as possible. Full list: bit.ly/4dkGfPP
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Interested in our open malaria RFI? We're hosting a webinar for each RFI track to answer applicant questions: 1️⃣ Pilot program track – May 15 @ 9am ET 2️⃣ Research & evaluation track – May 18 @ 9am ET Submissions are due June 24. Learn more & register: bit.ly/3R6354R
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⏳ The countdown is on—less than a month until our webinar, Looking Back to Give Better: How GiveWell Evaluates Its Grantmaking, on June 9! Join us for a conversation about our grant lookbacks, the methodology behind them, & what we've learned so far. bit.ly/4tN1UWA
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📣 New RFI now open for malaria pilot programs and research across Africa! Apply through 1 of 2 submissions tracks by June 24. Learn more and apply at: • Pilot program track: bit.ly/3QHTQYy • Research and evaluation track: bit.ly/4waruWX
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📅 Save the date for our webinar, Looking Back to Give Better: How GiveWell Evaluates Its Grantmaking on Tuesday, June 9. Learn how we evaluate whether a grant achieved the impact we estimated how we use our findings to improve over time. 👉 Register: bit.ly/4tN1UWA
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Our April newsletter is out featuring: 👶 An update on our grant to @MiracleFeet reflections from our site visit 💊 A podcast episode scrutinizing the evidence for vitamin A supplementation 📣 New open roles: Senior Recruiters Read it on our blog ⬇️ bit.ly/4cCTkDy
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As our research capacity has grown, so has our ability to fund different kinds of programs—like clubfoot treatment. 🎧 CEO Elie Hassenfeld Program Officer Meika Ball discuss our grant to @miraclefeet & what a recent site visit to Côte d'Ivoire revealed: bit.ly/4sLXa27
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We’re excited to be funding these pilots with @GiveDirectly to learn more about what could make cash transfer programs even more cost-effective. This is part of a growing area of our work. Our recent podcast explores these pilots & more: bit.ly/4demfP6
We’ve partnered with @GiveWell to study ways to make our cash programs ever more cost-effective (1/6)
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Vitamin A supplementation has one of the strongest evidence bases we've evaluated. But when you dig in, it's more complicated than it looks. 🎧 CEO Elie Hassenfeld Sr Researcher Stephan Guyenet discuss how we're going deeper to answer hard questions: bit.ly/4dxfKHm
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