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Coefficient Giving

Alexander Berger

CEO

Alexander Berger is co-founder and CEO of Coefficient Giving. He sets our strategic direction, oversees our grantmaking, and leads our work with external donors.

Before becoming CEO, Alexander served as co-CEO and led Coefficient’s work on global health and wellbeing. During his time as co-CEO and then sole CEO, he has overseen over $4 billion of giving and launched Coefficient’s pooled funds to reduce lead exposure, promote economic growth, and accelerate the development of Strep A vaccines. 

Previously, Alexander led our initial process for selecting focus areas and hiring and training program officers. In 2011, he co-founded the project that eventually became Coefficient Giving, and in 2017 he was the first employee of the independent organization.

Alexander began his career as a research analyst at GiveWell, conducting evidence reviews and cost-effectiveness analyses in global health. He holds an M.A. in education policy and a B.A. in philosophy from Stanford University, where he graduated with honors and distinction.

For more on Alexander, read this Vox interview or listen to this Devex podcast.

Featured Writing

  • 2025 Letter from the CEO

    Coefficient Giving directed over $1 billion in 2025, the most in our history. This significant milestone is the result of extraordinary dedication from our funders, staff, and grantees, who share the conviction that effective philanthropy can be a powerful lever for making the world a much better place.

    Coefficient Giving's leadership team in 2025

  • GiveWell’s Top Charities Are (Increasingly) Hard to Beat

    Our thinking on prioritizing across different causes has evolved as we’ve made more grants. This post explores one aspect of that: the high bar set by the best global health and development interventions, and what we’re learning about the relative performance of some of our other grantmaking areas that seek to help people today.

  • Technical Updates to Our Global Health and Wellbeing Cause Prioritization Framework

    In 2019, we wrote a blog post about how we think about the "bar" for our giving and how we compare different kinds of interventions to each other using back-of-the-envelope calculations, all within the realm of what we now call Global Health and Wellbeing (GHW). This post updates that one and: Explains how we previously…

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