| WORLD ECONOMIC FORUM | $528,837,504 | Q05 | published | | New York, NY | 2024 |
| WORLD RESOURCES INSTITUTE | $213,044,770 | Q05 | published | science: research education | Washington, DC | 2024 |
| CONFLICT AND DEVELOPMENT FOUNDATION | $136,283,808 | Q05 | published | violence: prevention | Castroville, TX | 2024 |
| MULTIFAITH ALLIANCE INC | $110,316,945 | Q05 | published | | New York, NY | 2024 |
| COUNCIL ON FOREIGN RELATIONS INC | $99,083,520 | Q05 | published | science: research education | New York, NY | 2024 |
| INTERNATIONAL LIVESTOCK RESEARCH INSTITUTE | $95,365,000 | Q05 | published | | Alexandria, VA | 2024 |
| ATLANTIC COUNCIL OF THE U S INC | $69,901,633 | Q05 | published | space: outer | Washington, DC | 2024 |
| INTERNATIONAL VACCINE INSTITUTE | $68,966,984 | Q05 | published | launch: launch | Republic Of Korea | 2024 |
| UNION OF CONCERNED SCIENTISTS INC | $55,479,482 | Q05 | published | science: research education | Cambridge, MA | 2024 |
| POPULATION COUNCIL INC | $53,782,783 | Q05 | published | domestic: workers | New York, NY | 2024 |
| GERMAN MARSHALL FUND OF THE US | $38,434,390 | Q05 | published | science: christian science | Washington, DC | 2024 |
| INTERNATIONAL CENTRE FOR AGRICULTURAL RESEARCH IN THE DRY A | $33,431,021 | Q05 | published | | Lebanon | 2025 |
| WASHINGTON INSTITUTE FOR NEAR EAST POLICY | $21,526,788 | Q05 | published | women: issues | Washington, DC | 2024 |
| COMMITTEE FOR ACCURACY IN MIDDLE EAST REPORTING IN AMERICA INC | $20,385,298 | Q05 | published | | Boston, MA | 2025 |
| HENRY L STIMSON CENTER | $14,861,548 | Q05 | published | space: outer | Washington, DC | 2024 |
| CENTER FOR INTERNATIONAL ENVIRONMENTAL LAW INC | $14,374,319 | Q05 | published | violence: sexual | Washington, DC | 2024 |
| INSTITUTE OF WORLD POLITICS | $11,135,448 | Q05 | published | | Washington, DC | 2024 |
| BUSINESS COUNCIL FOR INTERNATIONAL UNDERSTANDING INC | $10,243,570 | Q05 | published | | New York, NY | 2024 |
| ORGANIZATION FOR TROPICAL STUDIES INC | $9,701,537 | Q05 | published | science: research education | Durham, NC | 2024 |
| FEDERATION FOR AMERICAN IMMIGRATION REFORM | $8,578,324 | Q05 | published | | Washington, DC | 2025 |
| MIDDLE EAST INSTITUTE | $8,389,421 | Q05 | published | | Washington, DC | 2024 |
| INTERNATIONAL CENTER FOR RESEARCH ON WOMEN | $7,791,532 | Q05 | published | violence: prevention | Washington, DC | 2024 |
| CHICAGO COUNCIL ON GLOBAL AFFAIRS | $7,715,407 | Q05 | published | | Chicago, IL | 2024 |
| ADVANCE DEMOCRACY INC | $7,580,825 | Q05 | published | | Mclean, VA | 2024 |
| ISRAEL POLICY FORUM INC | $7,036,732 | Q05 | published | | New York, NY | 2024 |
| INSTITUTE FOR POLICY STUDIES | $5,650,996 | Q05 | published | women: issues | Suite, DC | 2024 |
| FOREIGN POLICY ASSOCIATION INCORPORATED | $4,976,829 | Q05 | published | | New York, NY | 2024 |
| OUTREACH AID TO THE AMERICAS INC | $4,901,209 | Q05 | published | | North Miami, FL | 2025 |
| SASAKAWA PEACE FOUNDATION USA | $4,697,823 | Q05 | inferred 0.60 | science: research education | Washington, DC | 2024 |
| SEA TURTLE CONSERVANCY | $4,092,162 | Q05 | published | | Gainesville, FL | 2024 |
| CENTER FOR SECURITY POLICY INC | $3,889,677 | Q05 | published | | Washington, DC | 2024 |
| INTER-AMERICAN DIALOGUE | $3,774,308 | Q05 | published | | Washington, DC | 2024 |
| LEAD EXPOSURE ELIMINATION PROJECT INC | $3,643,151 | Q05 | published | | Newark, DE | 2024 |
| INDEPENDENT DIPLOMAT INC | $3,541,697 | Q05 | published | violence: sexual | New York, NY | 2024 |
| THE AFRICA-AMERICA INSTITUTE | $3,503,948 | Q05 | published | | New York, NY | 2024 |
| FUTURE SOCIETY INC | $3,406,697 | Q05 | published | | Boston, MA | 2024 |
| CASPIAN POLICY CENTER | $3,304,755 | Q05 | published | | Washington, DC | 2024 |
| CENTER FOR ECONOMIC AND POLICY RESEARCH | $3,264,794 | Q05 | published | | Washington, DC | 2024 |
| ARAB GULF STATES INSTITUTE IN WASHINGTON | $3,258,680 | Q05 | published | | Washington, DC | 2024 |
| AMERICAN FOREIGN POLICY COUNCIL | $3,199,958 | Q05 | published | | Washington, DC | 2024 |
| NONVIOLENT PEACEFORCE | $2,955,045 | Q05 | published | violence: prevention | Richfield, MN | 2025 |
| AMERICAN COUNCIL OF YOUNG POLITICAL LEADERS INC | $2,822,115 | Q05 | published | | Washington, DC | 2025 |
| WORLD AFFAIRS COUNCIL OF PHILADELPHIA | $2,792,100 | Q05 | published | violence: sexual | Philadelphia, PA | 2024 |
| ASSOCIATION OF VOLUNTEERS IN INTERNATIONAL SERVICE USA INC | $2,664,303 | Q05 | published | women: issues | Silver Spring, MD | 2025 |
| WASHINGTON OFFICE ON LATIN AMERICA INC | $2,622,419 | Q05 | published | violence: sexual | Washington, DC | 2025 |
| WORLD AFFAIRS COUNCIL OF DALLAS FORT WORTH | $2,600,583 | Q05 | published | domestic violence | Dallas, TX | 2024 |
| BERTELSMANN FOUNDATION NORTH AMERICA INC | $2,594,398 | Q05 | published | women: issues | Washington, DC | 2025 |
| IGARAPE INC | $2,511,621 | Q05 | published | violence: community | New York, NY | 2024 |
| PALANTIR FOUNDATION FOR DEFENSE POLICY AND INTERNATIONAL AFFAIRS | $2,500,000 | Q05 | published | | Washington, DC | 2024 |
| PARLIAMENTARIANS FOR GLOBAL ACTION | $2,385,444 | Q05 | published | violence: gun | New York, NY | 2024 |
| PALESTINIAN AMERICAN RESEARCH CENTER | $2,381,001 | Q05 | published | | Bethesda, MD | 2024 |
| FOREIGN POLICY RESEARCH INSTITUTE | $2,376,206 | Q05 | published | | Philadelphia, PA | 2024 |
| CARNEGIE COUNCIL FOR ETHICS IN INTERNATIONAL AFFAIRS INC | $2,375,730 | Q05 | published | science: research education | New York, NY | 2025 |
| PROGRESSNOW AZ INSTITUTE | $2,325,500 | Q05 | published | | Phoenix, AZ | 2024 |
| ODI NORTH AMERICA INC | $2,305,589 | Q05 | published | | Washington, DC | 2025 |
| INTERNATIONAL LAW INSTITUTE | $2,290,530 | Q05 | published | | Washington, DC | 2024 |
| PACIFIC COUNCIL ON INTERNATIONAL POLICY | $2,094,867 | Q05 | published | | Los Angeles, CA | 2024 |
| EDUCATIONAL PERSPECTIVES NFP | $1,997,598 | Q05 | published | | Chicago, IL | 2024 |
| TRUMAN NATIONAL SECURITY PROJECT | $1,968,737 | Q05 | inferred 0.50 | | Washington, DC | 2011 |
| FRIEDRICH EBERT STIFTUNG INC | $1,895,260 | Q05 | inferred 0.70 | | New York, NY | 2025 |
| FRENCH AMERICAN FOUNDATION FOR THE DEVEL OF RELATIONS BTWN FRNC & US | $1,872,837 | Q05 | published | | New York, NY | 2024 |
| GLOBAL FINANCIAL INTEGRITY | $1,824,449 | Q05 | published | | Washington, DC | 2024 |
| NATIONAL SECURITY ARCHIVE FUND INC | $1,807,989 | Q05 | published | | Washington, DC | 2024 |
| DEMOCRACY FOR THE ARAB WORLD NOW INC | $1,750,087 | Q05 | published | | Washington, DC | 2024 |
| NATIONAL COMMITTEE ON AMERICAN FOREIGN POLICY INC | $1,748,692 | Q05 | published | | New York, NY | 2024 |
| INSTITUTE FOR STATE EFFECTIVENESS | $1,726,664 | Q05 | published | science: research education | Washington, DC | 2025 |
| CLEVELAND COUNCIL ON WORLD AFFAIRS | $1,717,895 | Q05 | published | | Cleveland, OH | 2024 |
| INSTITUTE OF THE AMERICAS | $1,715,836 | Q05 | published | science: research education | La Jolla, CA | 2024 |
| INVESTIGATIVE PROJECT ON TERRORISM FOUNDATION | $1,714,455 | Q05 | published | | Washington, DC | 2024 |
| BRETTON WOODS COMMITTEE | $1,703,894 | Q05 | published | | Washington, DC | 2024 |
| HAMILTON FOUNDATION INC | $1,689,880 | Q05 | published | | Steamboat Spr, CO | 2025 |
| US FOR BELIZE FOUNDATION RESEARCH & ENVIRONMENTAL EDUCATION | $1,636,293 | Q05 | published | science: research education | Gainesville, FL | 2024 |
| WORLD AFFAIRS COUNCIL OF GREATER HOUSTON | $1,616,754 | Q05 | published | | Houston, TX | 2024 |
| WINDWARD ISLANDS RESEARCH AND EDUCATION FOUNDATION INC | $1,554,736 | Q05 | published | violence: prevention | Brightwaters, NY | 2024 |
| ASSOCIATION FOR DIPLOMATIC STUDIES & TRAINING | $1,524,053 | Q05 | published | | Arlington, VA | 2024 |
| INTERNATIONAL INSTITUTE FOR ENERGY CONSERVATION INC | $1,514,955 | Q05 | inferred 0.60 | | Breinigsville, PA | 2024 |
| PARTNERSHIP FOR QUALITY MEDICAL DONATIONS | $1,487,590 | Q05 | published | | Annapolis, MD | 2025 |
| GLOBAL HEALTH COUNCIL INC | $1,463,170 | Q05 | published | | Washington, DC | 2025 |
| WILLIAM NOVICK GLOBAL CARDIAC ALLIANCE INC | $1,444,093 | Q05 | published | | Memphis, TN | 2024 |
| INTERNATIONAL ASSOCIATION FOR FEMINIST ECONOMICS | $1,386,419 | Q05 | published | women: issues | Ithaca, NY | 2024 |
| WORLD AFFAIRS COUNCIL OF CHARLOTTE | $1,311,877 | Q05 | published | women: issues | Charlotte, NC | 2024 |
| TRUE COSTS INITIATIVE INC | $1,271,000 | Q05 | published | | Brookline, MA | 2025 |
| JERUSALEM INSTITUTE OF JUSTICE INC | $1,247,710 | Q05 | published | survivor: disaster | Mckinney, TX | 2025 |
| INSTITUTE FOR RESEARCH ON AFRICAN | $1,234,020 | Q05 | published | women: issues | Tucson, AZ | 2025 |
| CENTRO DI STUDI AMERICANI | $1,230,219 | Q05 | published | | Italy | 2024 |
| WORLD AFFAIRS COUNCIL | $1,224,126 | Q05 | published | | Seattle, WA | 2025 |
| REFUGEE SOLIDARITY NETWORK INC | $1,213,215 | Q05 | published | | Montebello, NY | 2024 |
| NATIONAL JEWISH POLICY CENTER | $1,191,068 | Q05 | published | | Washington, DC | 2024 |
| INTERNATONAL RELATIONS COUNCIL INC HARVARD UNIVERSITY | $1,180,586 | Q05 | published | | Cambridge, MA | 2024 |
| LOS ANGELES WORLD AFFAIRS COUNCIL | $1,122,681 | Q05 | published | | Los Angeles, CA | 2024 |
| INTERNATIONAL SISTER CITIES ASSOCIATION OF FORT WORTH INC | $1,071,984 | Q05 | published | girls boys: girls | Fort Worth, TX | 2024 |
| ROBERT M GATES GLOBAL POLICY CENTER | $1,023,669 | Q05 | published | | Newington, VA | 2024 |
| INSTITUTE FOR STRATEGY AND POLICY - MYANMAR | $996,009 | Q05 | published | | Milpitas, CA | 2025 |
| INSTITUTE FOR SOCIAL POLICY AND UNDERSTANDING | $970,979 | Q05 | published | | Dearborn, MI | 2025 |
| BASTION I INSTITUTE | $962,000 | Q05 | published | | Washington, DC | 2024 |
| WORLD AFFAIRS COUNCIL OF OREGON INC | $948,427 | Q05 | published | | Portland, OR | 2024 |
| GLOBAL DEVELOPMENT NETWORK INC | $930,244 | Q05 | published | launch: launch | Arlington, VA | 2024 |
| COPENHAGEN CONSENSUS CENTER USA INC | $920,765 | Q05 | published | | Tewksbury, MA | 2024 |
| HILLTOWN COMMONS INC | $907,681 | Q05 | published | science: research education | Rensselaervle, NY | 2024 |
| INTERNATIONAL MODEL UNITED NATIONS ASSOC INC | $887,317 | Q05 | published | | Saint Louis, MO | 2024 |