| THE ASPEN INSTITUTE INC | $443,841,184 | V20 | published | launch: launch | Washington, DC | 2024 |
| NATIONAL OPINION RESEARCH CENTER | $397,190,163 | V20 | published | science: research education | Chicago, IL | 2024 |
| THE MILKEN INSTITUTE | $388,976,676 | V20 | inferred 0.60 | | Santa Monica, CA | 2024 |
| HUMAN SERVICES RESEARCH INSTITUTE INC | $18,023,780 | V20 | published | abuse: substance | Cambridge, MA | 2024 |
| SALZBURG GLOBAL SEMINAR INC | $16,474,201 | V20 | published | | Washington, DC | 2024 |
| SOCIAL SCIENCE RESEARCH COUNCIL | $14,237,307 | V20 | published | science: research education | New York, NY | 2024 |
| NEXTCORPS INC | $13,201,479 | V20 | published | science: research education | Rochester, NY | 2024 |
| WENNER-GREN FOUNDATION FOR ANTHROPOLOGICAL RESEARCH INC | $11,419,151 | V20 | inferred 0.55 | violence: sexual | New York, NY | 2024 |
| MIDWESTERN HIGHER EDUCATION COMMISSION | $11,146,961 | V20 | published | | Minneapolis, MN | 2024 |
| BEHAVIORAL IDEAS LAB INC | $10,958,819 | V20 | published | violence: sexual | Washington, DC | 2024 |
| JUST CAPITAL FOUNDATION INC | $10,953,584 | V20 | published | launch: launch | New York, NY | 2025 |
| INSTITUTE FOR HIGHER EDUCATION POLICY | $8,861,160 | V20 | published | women: issues | Washington, DC | 2024 |
| UNITED STATES GEOSPATIAL INTELLIGENCE FOUNDATION | $7,559,866 | V20 | published | | Herndon, VA | 2024 |
| OPEN TO DEBATE FOUNDATION | $5,234,812 | V20 | published | | New York, NY | 2024 |
| RESEARCH FOR ACTION INC | $5,230,199 | V20 | published | violence: gun | Philadelphia, PA | 2024 |
| CHILDREN AND FAMILY FUTURES INC | $5,099,568 | V20 | published | abuse: child | Irvine, CA | 2024 |
| PACIFIC RESOURCES FOR EDUCATION AND LEARNING | $4,229,008 | V20 | published | science: research education | Honolulu, HI | 2023 |
| GLOBAL WITNESS FOUNDATION | $4,207,343 | V20 | published | | Palo Alto, CA | 2024 |
| NATIONAL COUNCIL FOR THE SOCIAL STUDIES | $3,668,509 | V20 | published | | Silver Spring, MD | 2024 |
| THE POLICY CIRCLE CO | $3,566,182 | V20 | published | women: issues | Wilmette, IL | 2025 |
| COUNCIL ON GOVERNMENTAL RELATIONS | $3,333,311 | V20 | published | | Washington, DC | 2024 |
| NBCC FOUNDATION INC | $3,141,069 | V20 | published | | Greensboro, NC | 2024 |
| CENTER FOR PUBLIC INTEREST RESEARCH INC | $3,134,661 | V20 | published | | Boston, MA | 2024 |
| EQUITY RESEARCH ORGANIZATION | $3,098,495 | V20 | published | | Philadelphia, PA | 2024 |
| NATIVE AMERICAN FINANCE OFFICERS ASSOCIATION INC | $3,098,128 | V20 | published | | Washington, DC | 2024 |
| SYNERGIA - INITIATIVES FOR HUMAN RIGHTS | $2,992,130 | V20 | published | | Washington, DC | 2024 |
| FLORIDA TAXWATCH RESEARCH INSTITUTE INC | $2,947,168 | V20 | inferred 0.60 | | Tallahassee, FL | 2024 |
| MYERS & BRIGGS FOUNDATION INC | $2,767,167 | V20 | published | science: research education | Gainesville, FL | 2025 |
| SAGAMORE INSTITUTE OF THE ADIRONDACKS INC | $2,436,681 | V20 | published | | Raquette Lake, NY | 2024 |
| NORTH AMERICAN ARAB COUNCIL FOR THE SOCIAL SCIENCES INC | $1,828,061 | V20 | published | | New York, NY | 2024 |
| SPHERE INSTITUTE | $1,809,880 | V20 | published | | Burlingame, CA | 2024 |
| CAMPBELL COLLABORATION | $1,783,463 | V20 | published | | Philadelphia, PA | 2024 |
| CENTER FOR SCHOLARS & STORYTELLERS | $1,713,526 | V20 | published | | Ventura, CA | 2025 |
| MIDWEST BIODIVERSITY INSTITUTE INC | $1,658,182 | V20 | published | | Hilliard, OH | 2024 |
| COGNITIVE SCIENCE SOCIETY | $1,447,697 | V20 | published | science: research education | Seattle, WA | 2024 |
| INTEGRAL COMMUNITY SOLUTIONS INSTITUTE | $1,434,165 | V20 | published | | Fresno, CA | 2024 |
| KEYSTONE RESEARCH CENTER INC | $1,389,208 | V20 | published | | Lemoyne, PA | 2024 |
| ALBERT SHANKER INSTITUTE | $1,312,459 | V20 | inferred 0.60 | | Washington, DC | 2024 |
| CENTER FOR ECONOMIC AND SOCIAL JUSTICE | $1,087,487 | V20 | inferred 0.50 | | Arlington, VA | 2024 |
| GEORGIA PUBLIC POLICY FOUNDATION INC | $1,024,016 | V20 | published | science: research education | Atlanta, GA | 2024 |
| THE VALLEY ECONOMIC ALLIANCE | $1,018,382 | V20 | published | | Sherman Oaks, CA | 2024 |
| CARING FIELDS FELINES | $995,983 | V20 | published | | Palm City, FL | 2025 |
| OLIVEAS INC | $994,706 | V20 | published | | Albany, NY | 2024 |
| PROSOCIAL WORLD | $958,949 | V20 | published | | Austin, TX | 2025 |
| AUSTIN INSTITUTE FOR THE STUDY OF FAMILY AND CULTURE | $946,965 | V20 | inferred 0.60 | science: research education | Austin, TX | 2024 |
| US GOOD BUSINESS LAB FOUNDATION | $937,060 | V20 | published | women: issues | Ann Arbor, MI | 2024 |
| FRANK W NORRIS FOUNDATION | $766,748 | V20 | published | | Athens, GA | 2024 |
| CONFERENCE ON LANGUAGE MODELING INC | $712,337 | V20 | published | | Appleton, WI | 2024 |
| CENTER FOR THE STUDY OF ORGANIZED HATE INC | $655,076 | V20 | published | violence: prevention | Washington, DC | 2025 |
| WESTERN INSTITUTE FOR SOCIAL RESEARCH | $654,100 | V20 | published | violence: community | Berkeley, CA | 2024 |
| INTERNATIONAL CULTIC STUDIES ASSOCIATION INC | $639,673 | V20 | inferred 0.50 | science: research education | Tewksbury, MA | 2024 |
| MOTIVATIONAL INTERVIEWING NETWORK OF TRAINERS INCORPORATED | $623,327 | V20 | published | science: research education | Fairfax, VA | 2024 |
| SOCIETY FOR IN VITRO BIOLOGY INCORPORATED | $618,212 | V20 | published | science: research education | Millersville, MD | 2025 |
| LUCY PARSONS INSTITUTE FOR SOCIAL RESEARCH | $583,525 | V20 | published | | Minneapolis, MN | 2025 |
| ATHEIST ALLIANCE OF AMERICA | $566,018 | V20 | published | | Sacramento, CA | 2024 |
| FAMILY AND YOUTH INSTITUTE OFMICHIGAN | $560,494 | V20 | published | | Canton, MI | 2025 |
| SOUTHWESTERN SOCIAL SCIENCE ASSOCIATION | $539,449 | V20 | published | science: research education | Shawnee, OK | 2024 |
| INTERNATIONAL ENNEAGRAM ASSOCIATION | $479,009 | V20 | published | | Cincinnati, OH | 2025 |
| HUMAN ENGINEERING LABORATORY INCORPORATED | $459,399 | V20 | published | | Boston, MA | 2024 |
| SUMMIT VIEW RESEARCH FOUNDATION | $459,100 | V20 | published | | White Plains, NY | 2025 |
| PSYCHOMETRIC SOCIETY EDUCATIONAL TESTING SERVICE | $433,523 | V20 | published | science: research education | Windsor, WI | 2024 |
| CHILD AND FAMILY POLICY CENTER | $402,510 | V20 | inferred 0.50 | | Des Moines, IA | 2020 |
| E21 A 21ST CENTURY ECONOMIC POLICY | $402,347 | V20 | inferred 0.60 | | Washington, DC | 2013 |
| REVERSIBLE DESTINY FOUNDATION INC | $399,708 | V20 | published | | Brooklyn, NY | 2024 |
| THE THRIVING CITIES GROUP | $377,188 | V20 | published | | Elkton, VA | 2025 |
| HAMAATSA INC | $349,696 | V20 | published | | Albuquerque, NM | 2024 |
| ST PETERS SYRIAC ORTHODOX CATHEDRAL INC | $293,181 | V20 | published | | Philadelphia, PA | 2024 |
| PUBLIC BROADCASTING NETWORK INC | $266,366 | V20 | published | science: research education | Wildwood, MO | 2024 |
| INTERNATIONAL SOCIETY FOR QUALITY- OF-LIFE STUDIES | $258,175 | V20 | published | science: research education | Gilbert, AZ | 2024 |
| ESTATE PLANNING COUNCIL OF PORTLAND INC | $255,493 | V20 | inferred 0.50 | | Tigard, OR | 2024 |
| SOCIETY FOR ECONOMIC DYNAMICS | $253,058 | V20 | published | | Minneapolis, MN | 2025 |
| GEORGIA COUNCIL FOR SOCIAL SCIENCES | $217,164 | V20 | published | | Roswell, GA | 2025 |
| AATCC FOUNDATION INC | $210,423 | V20 | published | science: research education | Rtp, NC | 2025 |
| PENNSYLVANIA ECONOMIC COUNCIL | $199,500 | V20 | inferred 0.55 | | Alexandria, VA | 2023 |
| COMMUNITY STUDIES OF NEW YORK INC | $199,217 | V20 | inferred 0.55 | | New York, NY | 2014 |
| LINCOLN INSTITUTE OF PUBLIC OPINION RESEARCH INC | $198,990 | V20 | published | | Harrisburg, PA | 2025 |
| MURRAY BOOKCHIN LEGACY FOUNDATION | $195,000 | V20 | published | | Burlington, VT | 2025 |
| SUSTAINABLE PATH FOUNDATION | $180,906 | V20 | published | science: research education | Seattle, WA | 2024 |
| SOCIAL SCIENCE HISTORY ASSOCIATION | $161,561 | V20 | published | science: research education | Kings Mtn, NC | 2024 |
| PEACE CREATIONS | $158,165 | V20 | published | violence: prevention | San Ramon, CA | 2025 |
| ONE VILLAGE GROUP INC | $142,496 | V20 | published | | Tampa, FL | 2025 |
| GLOBALHOUSE INC | $137,000 | V20 | published | | Worden, MT | 2013 |
| ODES INC | $135,213 | V20 | inferred 0.70 | science: research education | Reno, NV | 2018 |
| NORTHWEST ALLIANCE FOR PSYCHOANALYTIC STUDIES | $128,095 | V20 | published | | Gig Harbor, WA | 2025 |
| PATRIOTIC REPUBLIC | $118,243 | V20 | published | | Chicago, IL | 2025 |
| COMMUNITY ALLIANCE FOR GLOBAL JUSTICE | $113,670 | V20 | published | women: issues | Seattle, WA | 2024 |
| ASSOCIATION FOR SOCIAL ECONOMICS | $112,446 | V20 | inferred 0.60 | | Winston Salem, NC | 2025 |
| GLOBAL IMPLEMENTATION INITIATIVE INC | $111,672 | V20 | published | science: research education | Midlothian, VA | 2021 |
| PERSPECTIVES OF FREEDOM FOUNDATION INC | $109,769 | V20 | published | science: research education | Pompano Beach, FL | 2025 |
| FLORAND RESEARCH FOUNDATION INC | $107,687 | V20 | published | science: research education | Gainesville, FL | 2024 |
| INTERNATIONAL VISUAL SOCIOLOGY ASSOCIATION INC | $106,316 | V20 | published | | Chicago, IL | 2025 |
| CENTER FOR PUBLIC POLICY STUDIES | $104,549 | V20 | published | | Denver, CO | 2025 |
| GEORGIA GERONTOLOGY SOCIETY INCORPORATED | $95,097 | V20 | inferred 0.50 | | Atlanta, GA | 2024 |
| OZARK RESEARCH INSTITUTE INC | $79,314 | V20 | published | | Greenland, AR | 2024 |
| NORWICH STUDIES & ANALYSIS INSTITUTE | $78,886 | V20 | inferred 0.70 | | Northfield, VT | 2014 |
| ETHICAL SYSTEMS INC | $77,600 | V20 | inferred 0.50 | science: research education | New York, NY | 2023 |
| INSTITUTE FOR INFORMATION STUDIES | $76,868 | V20 | inferred 0.50 | | Falls Church, VA | 2013 |
| WYNNEWOOD INSTITUTE | $76,514 | V20 | published | | Wynnewood, PA | 2014 |
| SOUTH CAROLINA COUNCIL FOR THE SOCIAL STUDIES | $73,285 | V20 | published | | Columbia, SC | 2025 |
| OHIO COUNCIL FOR THE SOCIAL STUDIES | $70,461 | V20 | published | | Wadsworth, OH | 2025 |