Senior leadership

Oxfam America’s senior staff members bring a wide range of experience and deep knowledge of economic and political development, social movements and popular campaigns, and organizational growth and management to the agency.

  1. Abby Maxman

    President & CEO, Oxfam America

    “My career has led me to work in some of the most challenging parts of the world, seeing first-hand the impact of poverty, injustice, war and disasters and I’ve always been impressed by Oxfam’s commitment to facing tough challenges with high impact solutions. Today, the fight against global poverty and injustice is more relevant than ever; I am honored to lead the Oxfam team through this next chapter.”

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  2. Paul O'Brien

    Vice President for Policy and Advocacy

    "I am at Oxfam because it works harder than any other organization I know to link the fight for global justice to local truths. We are a distinctive NGO because we do so much policy, advocacy, and campaigning. We are a different kind of 'idea leader' because we work so closely with communities around the world. On our best days, we bring it all together."

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  4. Mark F. Kripp

    Vice President of Operations/Chief Financial Officer

    "Having lived and worked in rural Haiti, I have seen how the provision of basic rights can transform people’s lives.”

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  5. Fatema Z. Sumar

    Vice President of Global Programs

    “With nearly one out of every three people globally living in poverty, I am honored to join Oxfam in leading the way to tackle the root causes of poverty and create lasting solutions."

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  6. Andrea Perera

    Vice President of Public Engagement

    "My commitment to Oxfam is rooted in my deep respect for the programs we undertake around the world. I have always admired the sheer audacity of our mission: to identify poverty as a man-made injustice that can only be eradicated through systemic change.”

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  7. Angie Castera

    Vice President of People, Culture, and Global Human Resources

    "I’ve had a lifelong desire to work in service of the betterment of others. Joining Oxfam presented an opportunity to align my values and commitment to service with my passion for building, transforming, and driving high performing business teams to deliver successful outcomes and to make a meaningful impact."

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  8. Muthoni Muriu

    Senior Director of International Programs

    "From an early age, I believed in the value of service. Oxfam’s very ethos, of working on sustainable and systemic solutions to social justice issues, fit with what is a natural inclination for me. I need to know I am making a difference, and serving others. Oxfam provides me with one of the best and most influential platforms to do this."

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  9. Ashley Tsongas

    Chief of Staff and Strategy

    "Oxfam believes that poverty is usually, at its root, about imbalances of power, that change is possible, and that solutions require good ideas, courage and persistence. It works. There is no better feeling than getting momentum going behind brave people with good ideas and seeing change unfold.”

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