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Vaccines are remarkably effective at preventing deadly diseases, and, while global needs for them are great, vaccines already receive substantial global funding. This creates a challenge: How do you identify opportunities where additional funding can meaningfully increase vaccination rates and save lives?

GiveWell has long recognized the potential for highly cost-effective vaccine programs. We started supporting vaccination programs in 2015 and have made over $200 million in vaccination-related grants to date. For example, New Incentives, one of our Top Charities, aims to increase routine childhood vaccinations in northern Nigeria by providing small cash incentives to caregivers who bring their children into clinics for vaccinations.

Over the past several years, we’ve been growing our research team and laying the groundwork to expand the scope of our work and funding.

In this episode, GiveWell CEO and co-founder Elie Hassenfeld speaks with Natalie Crispin, who leads GiveWell’s vaccination grantmaking. They discuss how our research approach has evolved and what it means for helping more children access life-saving vaccinations.

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The post Podcast Episode 24: Testing New Strategies to Increase Vaccination Coverage appeared first on The GiveWell Blog.

Vaccines are remarkably effective at preventing deadly diseases, and, while global needs for them are great, vaccines already receive substantial global funding. This creates a challenge: How do you identify opportunities where additional funding can meaningfully increase vaccination rates and save lives?

GiveWell has long recognized the potential for highly cost-effective vaccine programs. We started supporting vaccination programs in 2015 and have made over $200 million in vaccination-related grants to date. For example, New Incentives, one of our Top Charities, aims to increase routine childhood vaccinations in northern Nigeria by providing small cash incentives to caregivers who bring their children into clinics for vaccinations.

Over the past several years, we’ve been growing our research team and laying the groundwork to expand the scope of our work and funding.

In this episode, GiveWell CEO and co-founder Elie Hassenfeld speaks with Natalie Crispin, who leads GiveWell’s vaccination grantmaking. They discuss how our research approach has evolved and what it means for helping more children access life-saving vaccinations.

Read More

The post Podcast Episode 24: Testing New Strategies to Increase Vaccination Coverage appeared first on The GiveWell Blog.

Seasonal malaria chemoprevention (SMC)—a program that provides preventive antimalarial medication to young children during the months when malaria is mostly likely to be transmitted—is one of the most cost-effective programs GiveWell has identified. Malaria Consortium’s SMC program has been one of our Top Charities since 2016, and we’ve recommended more than $500 million in grants to the program.

Most of our funding to date has supported programs in West Africa, where strong evidence gives us confidence in the effectiveness of the drug combination used. In eastern and southern Africa, malaria chemoprevention programs could potentially help many more children, but we have substantial uncertainties about drug effectiveness in that region.

In this episode, GiveWell CEO and co-founder Elie Hassenfeld speaks with Senior Researcher John Macke about the CHAMP trial, a randomized controlled trial of chemoprevention drugs we’re supporting in Malawi, and how it could shape our malaria grantmaking.

This research is one example of how GiveWell is building for the future: investing in research now that could substantially expand our ability to direct funding cost-effectively in the years ahead.

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The post Podcast Episode 23: Generating Evidence for the Future of Malaria Prevention appeared first on The GiveWell Blog.

Seasonal malaria chemoprevention (SMC)—a program that provides preventive antimalarial medication to young children during the months when malaria is mostly likely to be transmitted—is one of the most cost-effective programs GiveWell has identified. Malaria Consortium’s SMC program has been one of our Top Charities since 2016, and we’ve recommended more than $500 million in grants to the program.

Most of our funding to date has supported programs in West Africa, where strong evidence gives us confidence in the effectiveness of the drug combination used. In eastern and southern Africa, malaria chemoprevention programs could potentially help many more children, but we have substantial uncertainties about drug effectiveness in that region.

In this episode, GiveWell CEO and co-founder Elie Hassenfeld speaks with Senior Researcher John Macke about the CHAMP trial, a randomized controlled trial of chemoprevention drugs we’re supporting in Malawi, and how it could shape our malaria grantmaking.

This research is one example of how GiveWell is building for the future: investing in research now that could substantially expand our ability to direct funding cost-effectively in the years ahead.

Read More

The post Podcast Episode 23: Generating Evidence for the Future of Malaria Prevention appeared first on The GiveWell Blog.

Every month we send an email newsletter to our supporters sharing recent updates from our work. We publish selected portions of the newsletter on our blog to make this news more accessible to people who visit our website. For key updates from the latest installment, please see below!

If you’d like to receive the complete newsletter in your inbox each month, you can subscribe here.

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The post January 2026 Updates appeared first on The GiveWell Blog.

Every month we send an email newsletter to our supporters sharing recent updates from our work. We publish selected portions of the newsletter on our blog to make this news more accessible to people who visit our website. For key updates from the latest installment, please see below!

If you’d like to receive the complete newsletter in your inbox each month, you can subscribe here.

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The post January 2026 Updates appeared first on The GiveWell Blog.

GiveWell is often thought of for its Top Charities, but over the last several years, we’ve been substantially broadening our work. We’ve developed new ways to identify potential grantees, funded research to fill gaps in our understanding, and explored new program areas where we believe cost-effective opportunities exist but other funders aren’t investing. This increased breadth isn’t a goal in itself—we’ve been laying the groundwork to deliver more impact, now and in the future.

In this episode, GiveWell CEO and co-founder Elie Hassenfeld speaks with Senior Program Officer Julie Faller about how our research approach has evolved and what it means for the future of our grantmaking.

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The post Podcast Episode 22: Evolving Our Research Approach for Greater Impact appeared first on The GiveWell Blog.

GiveWell is often thought of for its Top Charities, but over the last several years, we’ve been substantially broadening our work. We’ve developed new ways to identify potential grantees, funded research to fill gaps in our understanding, and explored new program areas where we believe cost-effective opportunities exist but other funders aren’t investing. This increased breadth isn’t a goal in itself—we’ve been laying the groundwork to deliver more impact, now and in the future.

In this episode, GiveWell CEO and co-founder Elie Hassenfeld speaks with Senior Program Officer Julie Faller about how our research approach has evolved and what it means for the future of our grantmaking.

Read More

The post Podcast Episode 22: Evolving Our Research Approach for Greater Impact appeared first on The GiveWell Blog.

GiveWell has built its reputation on rigorous research—analyzing randomized controlled trials, building cost-effectiveness models, and reviewing monitoring data to identify cost‑effective ways to save and improve lives. In an effort to supplement this desk research and make better decisions, we’ve been working to gather more information directly from the people who live and work in the countries where we fund programs.

In this episode, GiveWell CEO and co-founder Elie Hassenfeld speaks with Principal Researcher Alex Cohen about GiveWell’s work to gather local insights to check our assumptions and figure out what we might be missing.

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The post Podcast Episode 21: Testing Our Assumptions through Local Insights appeared first on The GiveWell Blog.

GiveWell has built its reputation on rigorous research—analyzing randomized controlled trials, building cost-effectiveness models, and reviewing monitoring data to identify cost‑effective ways to save and improve lives. In an effort to supplement this desk research and make better decisions, we’ve been working to gather more information directly from the people who live and work in the countries where we fund programs.

In this episode, GiveWell CEO and co-founder Elie Hassenfeld speaks with Principal Researcher Alex Cohen about GiveWell’s work to gather local insights to check our assumptions and figure out what we might be missing.

Read More

The post Podcast Episode 21: Testing Our Assumptions through Local Insights appeared first on The GiveWell Blog.

Global health programs faced major disruptions to their funding in 2025. Back in March, we published our first podcast episode to share a timely snapshot of the immediate impacts caused by the foreign aid freeze and GiveWell’s initial response strategy. It was unclear whether and when funding would resume, and what the medium and long-term implications would be for life-saving programs.

Over the last year, GiveWell has drawn on almost two decades of cost-effectiveness research and analysis to assess the effects of this tumult in real time, identify gaps where funding could have exceptional impact, and prepare for future needs. We’ve made nearly $50 million in grants in direct response to funding cuts, as part of our expected total grantmaking of around $350 million for the year.

In our final episode of the year, GiveWell CEO and co-founder Elie Hassenfeld and Director of Research Teryn Maddox follow-up on their first podcast conversation to look back at GiveWell’s response: Where did we succeed? What did we get wrong? Where could we have done better? How did our response evolve? And what might all of this mean for the world and our work in 2026?

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The post Podcast Episode 20: Taking Lessons from a Year of Aid Cuts into 2026 appeared first on The GiveWell Blog.

Global health programs faced major disruptions to their funding in 2025. Back in March, we published our first podcast episode to share a timely snapshot of the immediate impacts caused by the foreign aid freeze and GiveWell’s initial response strategy. It was unclear whether and when funding would resume, and what the medium and long-term implications would be for life-saving programs.

Over the last year, GiveWell has drawn on almost two decades of cost-effectiveness research and analysis to assess the effects of this tumult in real time, identify gaps where funding could have exceptional impact, and prepare for future needs. We’ve made nearly $50 million in grants in direct response to funding cuts, as part of our expected total grantmaking of around $350 million for the year.

In our final episode of the year, GiveWell CEO and co-founder Elie Hassenfeld and Director of Research Teryn Maddox follow-up on their first podcast conversation to look back at GiveWell’s response: Where did we succeed? What did we get wrong? Where could we have done better? How did our response evolve? And what might all of this mean for the world and our work in 2026?

Read More

The post Podcast Episode 20: Taking Lessons from a Year of Aid Cuts into 2026 appeared first on The GiveWell Blog.

Every month we send an email newsletter to our supporters sharing recent updates from our work. We publish selected portions of the newsletter on our blog to make this news more accessible to people who visit our website. For key updates from the latest installment, please see below!

If you’d like to receive the complete newsletter in your inbox each month, you can subscribe here.

Read More

The post December 2025 Updates appeared first on The GiveWell Blog.

Every month we send an email newsletter to our supporters sharing recent updates from our work. We publish selected portions of the newsletter on our blog to make this news more accessible to people who visit our website. For key updates from the latest installment, please see below!

If you’d like to receive the complete newsletter in your inbox each month, you can subscribe here.

Read More

The post December 2025 Updates appeared first on The GiveWell Blog.

We are excited to share that Coefficient Giving, formerly Open Philanthropy, has decided to renew and increase their funding for GiveWell, committing to set aside $175 million in 2026 for opportunities we recommend.

This is great news for the people our grants help, and it comes at a critical moment. Following 2025’s aid cuts, we think needs are greater than they were a year ago, and we expect they will continue to grow in the coming years as the impacts of current and future cuts mount. We’re grateful to see donors—including Coefficient Giving—stepping up and signaling that they trust us to help in the years ahead.

We think donating now to our Giving Funds remains an excellent way to help people in need, and we’re actively seeking donors who want to be part of this moment of substantial need and opportunity. Every dollar you give will be put to work, saving and improving lives through the most cost-effective programs our research identifies.

Last year, we raised $415 million and directed $397 million. This new commitment from Coefficient Giving, combined with recent updates from other donors, will make a real difference in the amount of funding we use to help people over the next few years.

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The post Coefficient Giving Commits $175 Million to GiveWell Opportunities appeared first on The GiveWell Blog.

We are excited to share that Coefficient Giving, formerly Open Philanthropy, has decided to renew and increase their funding for GiveWell, committing to set aside $175 million in 2026 for opportunities we recommend.

This is great news for the people our grants help, and it comes at a critical moment. Following 2025’s aid cuts, we think needs are greater than they were a year ago, and we expect they will continue to grow in the coming years as the impacts of current and future cuts mount. We’re grateful to see donors—including Coefficient Giving—stepping up and signaling that they trust us to help in the years ahead.

We think donating now to our Giving Funds remains an excellent way to help people in need, and we’re actively seeking donors who want to be part of this moment of substantial need and opportunity. Every dollar you give will be put to work, saving and improving lives through the most cost-effective programs our research identifies.

Last year, we raised $415 million and directed $397 million. This new commitment from Coefficient Giving, combined with recent updates from other donors, will make a real difference in the amount of funding we use to help people over the next few years.

Read More

The post Coefficient Giving Commits $175 Million to GiveWell Opportunities appeared first on The GiveWell Blog.

For this post, a number of GiveWell staff members volunteered to share the thinking behind their personal donations for the year. We’ve published similar posts in previous years. Staff are listed alphabetically by first name.

You can click the links to jump to a staff member’s entry: Araceli Steger, Calum Best, Devin Jacob, Elie Hassenfeld, Jeremy Rehwaldt, Kameron Smith, Katie Skoff, Lauren Imholte, Lisa McCandless, Lucy McNamara, Maggie Lloydhauser, Matthew Kertman, Paige Henchen, Sai Jahann, Sarah Eustis-Guthrie, Tori Shepard, Teryn Mattox.

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The post Staff Members’ Personal Donations for Giving Season 2025 appeared first on The GiveWell Blog.

For this post, a number of GiveWell staff members volunteered to share the thinking behind their personal donations for the year. We’ve published similar posts in previous years. Staff are listed alphabetically by first name.

You can click the links to jump to a staff member’s entry: Araceli Steger, Calum Best, Devin Jacob, Elie Hassenfeld, Jeremy Rehwaldt, Kameron Smith, Katie Skoff, Lauren Imholte, Lisa McCandless, Lucy McNamara, Maggie Lloydhauser, Matthew Kertman, Paige Henchen, Sai Jahann, Sarah Eustis-Guthrie, Tori Shepard, Teryn Mattox.

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The post Staff Members’ Personal Donations for Giving Season 2025 appeared first on The GiveWell Blog.

On December 4, 2025, we held a panel discussion titled “Growing Needs, Shrinking Aid: Cost-Effective Action in a Year of Funding Cuts.” The discussion, which was moderated by GiveWell co-founder and CEO Elie Hassenfeld, addressed the effects of recent cuts, how GiveWell is responding, and what we’re learning along the way—including our predictions and uncertainties about the future. GiveWell researchers Alex Bowles, Dilhan Perera, Meika Ball, and Rosie Bettle answered questions and shared their latest insights. Watch the video or read the transcript.

Because of limited time, we were unable to answer all of the questions live. Below we’ve answered some of the questions that weren’t addressed during the webinar, along with some additional questions submitted by audience members, focusing on four themes:

• The challenges of an uncertain future
• Taking action in the face of uncertainty
• The role of cost-effectiveness
• Future GiveWell grantmaking

Read More

The post Growing Needs, Shrinking Aid: Answering More of Your Questions appeared first on The GiveWell Blog.

On December 4, 2025, we held a panel discussion titled “Growing Needs, Shrinking Aid: Cost-Effective Action in a Year of Funding Cuts.” The discussion, which was moderated by GiveWell co-founder and CEO Elie Hassenfeld, addressed the effects of recent cuts, how GiveWell is responding, and what we’re learning along the way—including our predictions and uncertainties about the future. GiveWell researchers Alex Bowles, Dilhan Perera, Meika Ball, and Rosie Bettle answered questions and shared their latest insights. Watch the video or read the transcript.

Because of limited time, we were unable to answer all of the questions live. Below we’ve answered some of the questions that weren’t addressed during the webinar, along with some additional questions submitted by audience members, focusing on four themes:

• The challenges of an uncertain future
• Taking action in the face of uncertainty
• The role of cost-effectiveness
• Future GiveWell grantmaking

Read More

The post Growing Needs, Shrinking Aid: Answering More of Your Questions appeared first on The GiveWell Blog.