The GiveWell Blog

The Research behind Our $276 Million Grant for Malaria Nets in DRC

Malaria kills around 600,000 people annually. Children under five years old in Africa account for about 70% of all malaria deaths worldwide, and around 11% of total malaria deaths are in the Democratic Republic of the Congo (DRC).

As part of our ongoing efforts to scale our research and funding to direct much more money where it can do extraordinary good, GiveWell recently made its largest grant ever: $276 million to fund the purchase and distribution of malaria nets in DRC through the Against Malaria Foundation (AMF). The grant is being funded by Coefficient Giving and donations to GiveWell’s Top Charities Fund.

We estimate this grant will lead to the distribution of around 92 million insecticide-treated nets (ITNs), 46 million of which we think would not otherwise be distributed, and will avert approximately 67,000 deaths.

The research we conducted as part of this grant investigation led us to two key decisions:

  • First, this grant is much larger than our past funding for nets in DRC, enabling the purchase of nets for use across all 26 provinces of DRC from 2027 through 2029 and covering $60 million in distribution costs.
  • Second, the funding will shorten the time between regular net distributions to provide additional protection against malaria in up to five provinces with higher malaria burden.

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Announcing Our Largest Grant to Date

GiveWell, with co-funding from Coefficient Giving, recently made our largest grant ever: $276 million to the Against Malaria Foundation (AMF) to support the procurement and distribution of 92 million nets in the Democratic Republic of the Congo (DRC) from 2027 through 2029. We estimate that the nets, 46 million of which we think are additional to what would otherwise be distributed, will avert roughly 67,000 deaths. We have supported AMF’s work for more than 15 years, and the insecticide-treated nets it procures and distributes remain one of the most cost-effective ways we’ve found to save lives.

This grant, which involved a more rigorous investigation process than most, is part of a larger story about scaling our team and systems to handle substantially more funding while deepening our research rigor. Last year, we directed more than $400 million to highly cost-effective programs to save and improve lives and, this year, we expect our grantmaking to approach, and possibly exceed, $1 billion. This increase in grantmaking aims to meet global needs faster and more effectively.

In this episode, GiveWell co-founder and CEO Elie Hassenfeld speaks with Senior Program Officer Alex Bowles about the questions the team set out to answer during the grant investigation.

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Finding the Bottlenecks in Family Planning Access

When GiveWell investigates a new cause area, we’re often focused on two priorities: directing funding where we think it can help people most and generating evidence to inform larger investments later. Family planning is a clear example. Recent foreign aid cuts—including reductions from the US, UK, and Dutch governments—deepened an already substantial need and opened up new cost-effective funding opportunities.

When we published our last podcast episode on family planning, GiveWell had made only a couple of small grants. Since then, we’ve made a number of additional grants totaling around $20 million, exemplifying how our growing research capacity and expertise enable us to expand into new areas. By doing so, we aim to move more donor funding faster to global health programs where it can do extraordinary good.

In this episode, GiveWell co-founder and CEO Elie Hassenfeld speaks with Senior Program Officer Dilhan Perera about the family planning programming we’ve funded over the past year, how we’ve structured our grant portfolio, and what we’re hoping to learn.

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July 2026 Updates

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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Tackling Diarrheal Disease in the Democratic Republic of the Congo (DRC) and South Sudan

Diarrhea is one of the leading causes of death for children under five, killing more than 400,000 children every year. GiveWell has funded several programs to prevent and treat diarrhea, and we recently expanded our work by making a grant to support the implementation and evaluation of WASHmobile in the Democratic Republic of the Congo (DRC) and South Sudan. The program, which was developed by Johns Hopkins University, delivers water treatment supplies and hygiene messaging to households at the highest risk of diarrheal disease. It has shown promising results in randomized controlled trials (RCTs) but hasn’t yet been implemented at scale in the challenging settings where the need is greatest.

In this episode, GiveWell co-founder and CEO Elie Hassenfeld speaks with Senior Program Officer Erin Crossett, who leads GiveWell’s water research subteam, about the grant. They discuss how the program works, what prior research tells us about its potential, the significant uncertainties involved, and what GiveWell expects to learn.

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Scaling Our Impact, with Support from a $1 Billion Commitment

This year, we are focused on two primary goals. The first is to rapidly scale our research capabilities so we’re able to move much more donor funding to highly cost-effective programs in the near future. The second is to find and fund as many of the best opportunities we can this year to save and improve lives.

In 2025, we committed $418 million in grants. Though we’re just halfway through the year, we’ve already committed over $400 million in 2026. We anticipate our total grantmaking is likely to approach or even exceed $1 billion this year, and we are working toward a future that could be several times that scale.

We’re excited to share another major step in that direction. Coefficient Giving has decided to increase its near-term funding commitment for GiveWell grants to $1 billion in support of our continued scaling.

This commitment is both extraordinary and timely. Near-term needs continue to far surpass our fundraising expectations, and we are actively working to raise more funds to support a growing set of cost-effective opportunities to help people in need.

What’s driving our increased grantmaking

Several factors have driven our current expansion, as well as our ability to continue scaling.

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