| NEW VENTURE FUND | $662,364,100 | C05 | published | violence: gun | Washington, DC | 2024 |
| SOCIAL AND ENVIRONMENTAL ENTREPRENEURS INC | $94,599,962 | C05 | published | women: issues | Calabasas, CA | 2024 |
| CARY INSTITUTE OF ECOSYSTEM STUDIES INC | $30,981,844 | C05 | published | science: research education | Millbrook, NY | 2024 |
| BAY AREA ENVIRONMENTAL RESEARCH INSTITUTE | $29,248,015 | C05 | published | space: outer | Moffett Field, CA | 2024 |
| CLEARPATH INC | $26,628,921 | C05 | published | | Washington, DC | 2025 |
| CLIMATE POLICY INITIATIVE INC | $22,537,930 | C05 | published | | San Francisco, CA | 2024 |
| INTERNATIONAL COUNCIL ON CLEAN TRANSPORTATION | $22,292,485 | C05 | published | science: research education | Washington, DC | 2024 |
| FORTH | $21,778,604 | C05 | published | launch: launch | Portland, OR | 2024 |
| NEW YORK CLIMATE EXCHANGE INC | $21,197,671 | C05 | published | | New York, NY | 2024 |
| SAN FRANCISCO ESTUARY INSTITUTE | $19,594,340 | C05 | published | science: research education | Richmond, CA | 2024 |
| OCEAN EXPLORATION TRUST INC | $19,281,365 | C05 | published | space: outer | New London, CT | 2024 |
| CENTER FOR CLIMATE AND ENERGY SOLUTIONS INC | $18,710,584 | C05 | published | science: research education | Washington, DC | 2024 |
| APPAREL IMPACT INSTITUTE | $16,755,200 | C05 | published | | Oakland, CA | 2025 |
| CENTER FOR COASTAL STUDIES INC | $16,321,032 | C05 | published | science: research education | Provincetown, MA | 2025 |
| 350 ORG | $15,956,953 | C05 | published | science: research education | Boston, MA | 2024 |
| RESOURCES FOR THE FUTURE INC | $15,548,968 | C05 | published | science: research education | Washington, DC | 2024 |
| ICHAUWAY INC | $14,940,107 | C05 | inferred 0.55 | science: research education | Newton, GA | 2025 |
| GOODPOWER EDUCATION FUND INC | $14,278,134 | C05 | published | science: research education | Boston, MA | 2024 |
| EFI FOUNDATION | $14,011,996 | C05 | published | | Washington, DC | 2024 |
| SECURING AMERICAS FUTURE ENERGY FOUNDATION | $10,680,449 | C05 | inferred 0.40 | | Washington, DC | 2024 |
| NEW BUILDINGS INSTITUTE INC | $10,334,496 | C05 | published | science: research education | Portland, OR | 2024 |
| CENTER FOR CLIMATE INTEGRITY | $9,922,490 | C05 | published | science: research education | Washington, DC | 2025 |
| BIODIVERSITY | $9,831,598 | C05 | published | | Portland, ME | 2024 |
| ENVIRONMENTAL RESEARCH AND | $9,393,318 | C05 | published | science: research education | Raleigh, NC | 2024 |
| HEALTH CARE WITHOUT HARM | $8,527,842 | C05 | published | launch: religious | Reston, VA | 2024 |
| NATURAL STATE LTD | $8,154,315 | C05 | published | | Washington, DC | 2024 |
| EVERGREEN COLLABORATIVE | $7,981,270 | C05 | published | | Washington, DC | 2024 |
| MANOMET INC | $7,876,231 | C05 | published | science: research education | Manomet, MA | 2024 |
| RESOURCE INSTITUTE INC | $7,720,599 | C05 | published | | Winstonsalem, NC | 2025 |
| HOURGLASS CLIMATE INC | $7,558,411 | C05 | published | | Montclair, NJ | 2024 |
| AMERICAN CONSERVATION COALITION INC | $7,424,795 | C05 | published | women: issues | Washington, DC | 2025 |
| KEYSTONE CENTER | $7,414,788 | C05 | published | science: research education | Keystone, CO | 2025 |
| SMART GROWTH AMERICA | $7,203,795 | C05 | published | | Washington, DC | 2024 |
| WHITEBARK INSTITUTE | $6,658,654 | C05 | published | | Mammoth Lakes, CA | 2024 |
| ENVIRONMENT AMERICA RESEARCH AND POLICY CENTER INC | $6,390,013 | C05 | published | science: research education | Denver, CO | 2024 |
| INSTITUTE FOR APPLIED ECOLOGY | $6,367,319 | C05 | published | science: research education | Corvallis, OR | 2024 |
| CLEAN WATER FUND | $6,129,795 | C05 | published | | Washington, DC | 2024 |
| CASCADE CLIMATE INC | $5,675,000 | C05 | published | | Somerville, MA | 2024 |
| WATEREUSE ASSOCIATION | $5,377,768 | C05 | inferred 0.50 | science: research education | Alexandria, VA | 2024 |
| ECOSTUDIES INSTITUTE | $5,285,982 | C05 | published | | Olympia, WA | 2024 |
| PECAN STREET INC | $5,254,430 | C05 | published | science: research education | Austin, TX | 2024 |
| THE FOUNDATION FOR NATURAL RESOURCES AND ENERGY LAW | $5,211,030 | C05 | published | | Broomfield, CO | 2024 |
| GLOBAL ELECTRONICS COUNCIL | $5,046,873 | C05 | published | | Portland, OR | 2024 |
| COORDINATING RESEARCH COUNCIL INC | $5,012,640 | C05 | published | science: research education | Atlanta, GA | 2024 |
| SITKA SOUND SCIENCE CENTER | $4,539,558 | C05 | published | science: research education | Sitka, AK | 2025 |
| INTERNATIONAL COUNCIL ON ENVIRONMENTAL ECONOMICS AND | $4,363,851 | C05 | published | | New York, NY | 2021 |
| SOCIETY FOR CONSERVATION BIOLOGY | $4,182,998 | C05 | published | science: research education | Washington, DC | 2025 |
| SAND COUNTY FOUNDATION INC | $4,164,829 | C05 | inferred 0.55 | science: research education | Madison, WI | 2025 |
| AMAZON WATCH | $3,995,376 | C05 | published | | Oakland, CA | 2024 |
| ELECTRIFICATION COALITION FOUNDATION | $3,984,133 | C05 | published | | Washington, DC | 2024 |
| SKYTRUTH | $3,932,279 | C05 | published | launch: launch | Shepherdstown, WV | 2025 |
| NEW JERSEY FUTURE INC | $3,894,803 | C05 | inferred 0.55 | | Trenton, NJ | 2025 |
| ENVIRONMENTAL PROTECTION NETWORK | $3,848,320 | C05 | published | | Washington, DC | 2024 |
| COONAMESSETT FARM FOUNDATION INC | $3,789,449 | C05 | published | science: research education | East Falmouth, MA | 2025 |
| UTILITY INFORMATION ALLIANCE | $3,662,832 | C05 | published | | Seattle, WA | 2025 |
| REFLECTIVE INC | $3,646,000 | C05 | published | | San Francisco, CA | 2024 |
| SAVANNA INSTITUTE | $3,633,316 | C05 | published | science: research education | Madison, WI | 2024 |
| PLAYA LAKES JOINT VENTURE | $3,631,231 | C05 | published | | Longmont, CO | 2024 |
| B TEAM HEADQUARTERS INC | $3,601,499 | C05 | published | | New York, NY | 2024 |
| CENTER FOR CARBON REMOVAL | $3,431,719 | C05 | published | | Washington, DC | 2025 |
| ENVIRONMENT CALIFORNIA INC | $3,372,147 | C05 | published | | Sacramento, CA | 2024 |
| FOUNDATIONS OF SUCCESS INC | $3,095,063 | C05 | published | | Bethesda, MD | 2024 |
| ENVIRONMENTAL ADVOCATES NY INC | $2,987,000 | C05 | published | science: research education | Albany, NY | 2025 |
| INSTITUTE FOR SOCIO-ECOLOGICAL RESEARCH | $2,736,635 | C05 | published | women: issues | Lajas, PR | 2024 |
| EARTH GENOME | $2,582,872 | C05 | published | space: outer | Los Altos, CA | 2024 |
| CALIFORNIA FOUNDATION ON THE ENVIRONMENT AND THE ECONOMY | $2,562,579 | C05 | published | | Sacramento, CA | 2024 |
| CENTER FOR EARTH ENERGY AND DEMOCRACY | $2,527,065 | C05 | published | | Minneapolis, MN | 2024 |
| COMING CLEAN INC | $2,395,106 | C05 | published | science: research education | Brattleboro, VT | 2025 |
| ENVIRONMENTAL ACTION INC | $2,374,032 | C05 | published | | Denver, CO | 2024 |
| HYDROLOGIC RESEARCH CENTER | $2,325,761 | C05 | published | science: research education | San Diego, CA | 2024 |
| ENVIRONMENTAL AND ENERGY STUDY INSTITUTE | $2,265,178 | C05 | inferred 0.70 | shelter: disaster | Washington, DC | 2024 |
| INSTITUTE FOR ENERGY RESEARCH | $2,264,834 | C05 | published | | Washington, DC | 2024 |
| ENVIRONMENTAL RESEARCH INSTITUTE OF THE STATES | $2,259,365 | C05 | published | | Washington, DC | 2024 |
| THE VERMONT CENTER FOR ECOSTUDIES INC | $2,221,086 | C05 | published | science: research education | Norwich, VT | 2024 |
| CHESAPEAKE RESEARCH CONSORTIUM INC | $2,205,150 | C05 | published | science: research education | Edgewater, MD | 2024 |
| CIVILIZATION RESEARCH INITIATIVE | $2,154,946 | C05 | published | | Carlsbad, CA | 2024 |
| GLOBAL JUSTICE ECOLOGY PROJECT INC | $2,047,005 | C05 | published | science: research education | Randolph, NY | 2024 |
| UPSTATE FRESHWATER INSTITUTE INCORPORATED | $1,970,895 | C05 | published | | Syracuse, NY | 2025 |
| ECOADAPT | $1,854,918 | C05 | published | science: research education | Bainbridge Is, WA | 2024 |
| OCEAN ALLIANCE INC | $1,840,750 | C05 | published | science: research education | Gloucester, MA | 2024 |
| ENVIRONMENTAL CONCERN INC | $1,792,207 | C05 | published | | St Michael, MD | 2023 |
| CLIMATE RIGHTS INTERNATIONAL | $1,756,076 | C05 | published | | Berkeley, CA | 2024 |
| OUTDOOR ALLIANCE | $1,747,439 | C05 | published | | Washington, DC | 2025 |
| PLANET REIMAGINED INC | $1,739,342 | C05 | published | | New York, NY | 2024 |
| CLEAN AIR-COOL PLANET INC | $1,712,521 | C05 | inferred 0.60 | science: research education | Portsmouth, NH | 2011 |
| EVANGELICAL ENVIRONMENTAL NETWORK | $1,674,933 | C05 | inferred 0.50 | women: issues | Woodbury, MN | 2024 |
| INTERNATIONAL CONSULTATIVE POLICY INSTITUTE FOR THE EUROPEAN UNION | $1,658,771 | C05 | published | | New York, NY | 2021 |
| CIVILIZATION WORKS | $1,614,259 | C05 | published | | Albany, CA | 2024 |
| FOOD FOR CLIMATE LEAGUE INC | $1,579,554 | C05 | published | | Evanston, IL | 2024 |
| ALWAYS ON ENERGY RESEARCH | $1,533,316 | C05 | published | | Denver, CO | 2025 |
| MAJORITY ACTION | $1,511,754 | C05 | published | | Silver Spring, MD | 2024 |
| SMART SURFACES COALITION | $1,497,137 | C05 | published | | Washington, DC | 2025 |
| APPALACHIAN MOUNTAIN ADVOCATES INC | $1,427,958 | C05 | published | | Lewisburg, WV | 2024 |
| CORAL WORLD OCEAN AND REEF INITIATIVE INC | $1,419,370 | C05 | published | science: research education | St Thomas, VI | 2024 |
| THE NATIONAL INSTITUTE FOR SCIENCE LAW AND PUBLIC POLICY INC | $1,398,231 | C05 | inferred 0.55 | science: research education | Washington, DC | 2023 |
| AUSABLE RIVER ASSOCIATION INC | $1,382,222 | C05 | published | science: research education | Wilmington, NY | 2024 |
| SPATIAL INFORMATICS GROUP NATURAL ASSETS LABORATORY | $1,332,173 | C05 | published | science: research education | Pleasanton, CA | 2025 |
| CLIMATE AND WILDFIRE INSTITUTE INC | $1,320,861 | C05 | published | | San Francisco, CA | 2024 |
| UPPER MISSISSIPPI RIVER BASIN ASSOCIATION | $1,315,843 | C05 | published | science: research education | Edina, MN | 2024 |
| EARTH ECONOMICS | $1,310,040 | C05 | published | space: outer | Tacoma, WA | 2025 |