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Leadership

The foundation’s leaders come from a broad range of backgrounds and have a diversity of expertise and experience that spans science and technology, medicine, public policy, education, communications, law, and business. Our leaders are guided by the foundation’s mission to create a world in which every person has the opportunity to live a healthy, productive life.




Scientific Advisory Committee

Our Scientific Advisory Committee comprises a group of esteemed experts from outside of the foundation who offer a wide range of experiences and perspectives. This group plays an important role in strengthening our work by offering independent assessments of our Global Health Division strategies and helping us evaluate results.


Meet our leaders

46 – 54 of 58
  • Peter Dull

    Peter Dull

    Deputy Director, Clinical Vaccine Development

    Dr. Peter Dull provides technical and strategic guidance on clinical vaccine development to various foundation teams and external partners. He also leads the foundation’s investments in human papillomavirus vaccines, including reduced dose schedules.

  • Peter Ehrenkranz

    Peter Ehrenkranz

    Deputy Director, HIV

    Dr. Peter Ehrenkranz focuses on improving access to high-quality HIV care that better serves the needs of people living with HIV and reduces unnecessary burdens on the health system.

  • Philip Welkhoff

    Director, Malaria; Director, Institute for Disease Modeling

    Philip Welkhoff has led the foundation’s Malaria program since 2018 and has concurrently led the Institute for Disease Modeling (IDM) since 2021.

  • Rajiv Sodhi

    Rajiv Sodhi

    Deputy Director, Software

    Rajiv Sodhi leads the software engineering team that builds software tools and services to reduce the burden of infectious diseases in low- and middle-income countries and accelerate the adoption of efficient, reusable agent-based models.

  • Sharon Achilles

    Sharon Achilles

    Deputy Director, Reproductive Health Technologies

    Dr. Sharon Achilles leads the foundation’s efforts in drug discovery and innovative approaches to improving reproductive and sexual health, with a focus on women in low-resource settings.

  • Silpa Sundaram

    Silpa Sundaram

    Deputy Director, Strategy, Planning, and Management

    Silpa Sundaram leads strategy, planning, and operations for the Integrated Development team, where she previously served as a senior program officer working on investments in chemistry, manufacturing, and controls (CMC).

  • Simone Marticke

    Simone Marticke

    Deputy Director, Strategy, Planning, and Management

    Simone Marticke oversees strategy and operations for the Discovery & Translational Sciences team.

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    Skip Virgin

    Head of AI-Enabled Cures Frontier, Accelerator

    Skip Virgin leads a team that works to develop novel, AI-enabled approaches to drug discovery for curative interventions to virally induced chronic diseases.

  • Thea Norman

    Thea Norman

    Deputy Director, Design, Analyze, Communicate (DAC) Program

    Thea Norman created and leads the Integrated Development team’s Design, Analyze, Communicate (DAC) program, which works to address the significant problem of uninformative clinical research that does not help improve or save lives.


Historical Leadership


More about the foundation

Our role

For over 25 years, the Gates Foundation has been committed to fighting the greatest inequities in the world.

How we work

We are focused on results. Those that can be measured. And those measured in ways beyond numbers.

Our story

Learn about the origins of the foundation and the values that drive our work.