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    Who are the largest INGOs in the US — and where do they get funding?

    The 50 largest U.S. INGOs reported a combined income of $27.5 billion in their latest filings — highlighting their growing influence in the global development sphere.

    By Miguel Antonio Tamonan // 25 August 2025
    The 50 largest international nongovernmental organizations in the United States had a cumulative income of $27.5 billion in the last year for which there are tax filings. That’s according to an exclusive new report by Devex, which also found that the top 50 INGOs saw a 3.3% real-term reduction in their total latest income compared to the previous year. Overall, 26 of these nonprofits earned less, in real terms, in their latest reporting year than the previous one. This loss amounted to $2.3 billion. The remaining 24 INGOs saw a $1.4 billion growth in revenue. The most recent tax filings predate the impact of U.S. aid cuts, however Devex also studied the likely impact of the cuts on the top 50 organizations. Our findings show that 18 of the 50 top nonprofits got at least half of their total latest income from government grants. Some of this is likely to have come from other governments, but the vast majority is likely to have come from the U.S. government. Overall, the top income sources remain the public, government, and philanthropic foundations, in that order, although it is not possible to identify exactly how much was received from each source. Direct Relief maintains its rank as the largest U.S. nonprofit by size, reporting a $2.4 billion income in its latest filing — a flat increase from the previous year. Other top-earning INGOs include Americares, with $2 billion, World Vision USA, with $1.6 billion, International Rescue Committee, with $1.5 billion, and Catholic Relief Services and RTI International, with $1.3 billion each. Edesia, which is new to the list, is the fastest riser among the top nonprofits, recording a 108.7% year-on-year increase in income — from $91.6 million to $191.2 million. In contrast, the World Central Kitchen, which was the top riser in percentage terms in our previous edition, saw the steepest reduction both in monetary terms and relative to its previous reported income. Its total revenue went down by 57.7%, from $587.4 million to $248.7 million. Try out Devex Pro Funding today with a free five-day trial, and explore funding opportunities from over 850 sources in addition to our analysis and news content.

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    The 50 largest international nongovernmental organizations in the United States had a cumulative income of $27.5 billion in the last year for which there are tax filings.

    That’s according to an exclusive new report by Devex, which also found that the top 50 INGOs saw a 3.3% real-term reduction in their total latest income compared to the previous year.

    Overall, 26 of these nonprofits earned less, in real terms, in their latest reporting year than the previous one. This loss amounted to $2.3 billion.

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    More reading:

    ► What is the future of the INGO?

    ► Malawi is considering a local funding law. Will it help or harm INGOs?

    ► Opinion: CSO vs. INGO — the battle for funding explained

    • Funding
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    About the author

    • Miguel Antonio Tamonan

      Miguel Antonio Tamonan@migueldevex

      Miguel Tamonan is a Senior Development Analyst at Devex, where he analyzes data from public and private donors to produce content and special reports for Pro and Pro Funding readers. He has a bachelor’s degree in Political Science with a Major in International Relations from the Polytechnic University of the Philippines.

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    Devex Newswire: Is the Big Aid era ending, as INGOs pivot local?

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