| ENVIRONMENTAL DEFENSE FUND INCORPORATED | $443,267,772 | C60 | published | launch: launch | New York, NY | 2024 |
| SIXTEEN THIRTY FUND | $282,241,759 | C60 | published | violence: gun | Washington, DC | 2024 |
| MULTIPLIER | $65,807,518 | C60 | published | women: issues | San Francisco, CA | 2024 |
| SUNRISE PROJECT INC | $61,111,981 | C60 | published | | Wilmington, DE | 2024 |
| NATIONAL PARKS CONSERVATION ASSOCIATION | $51,618,326 | C60 | published | | Washington, DC | 2024 |
| GREAT BASIN INSTITUTE | $49,760,234 | C60 | published | | Reno, NV | 2025 |
| APPALACHIAN MOUNTAIN CLUB | $43,640,730 | C60 | published | shelter: disaster | Charlestown, MA | 2024 |
| NATIONAL OUTDOOR LEADERSHIP SCHOOL | $43,013,819 | C60 | published | | Lander, WY | 2024 |
| CDP NORTH AMERICA INC | $38,707,055 | C60 | published | launch: launch | New York, NY | 2024 |
| YELLOWSTONE FOREVER | $34,471,459 | C60 | published | | Bozeman, MT | 2025 |
| HIGHLANDER RESEARCH & EDUCATION CENTER INC | $24,240,944 | C60 | published | | New Market, TN | 2024 |
| GUIDED DISCOVERIES INC | $22,956,784 | C60 | published | space: outer | San Clemente, CA | 2024 |
| NATUREBRIDGE | $22,346,456 | C60 | published | science: research education | Sausalito, CA | 2024 |
| TETON SCIENCE SCHOOLS | $19,627,894 | C60 | published | science: research education | Jackson, WY | 2024 |
| GILROY GARDENS FAMILY THEME PARK | $19,590,955 | C60 | published | girls boys: girl scouts | Gilroy, CA | 2024 |
| 10 KLICKS OUTDOORS INC | $18,880,956 | C60 | published | | Brooks, GA | 2024 |
| GRAND CANYON CONSERVANCY | $17,918,741 | C60 | published | launch: space | Grand Canyon, AZ | 2025 |
| CLIMATE JOBS NATIONAL RESOURCE CENTER INC | $15,431,100 | C60 | published | | New York, NY | 2024 |
| WE MEAN BUSINESS COALITION INC | $15,214,542 | C60 | published | | New York, NY | 2024 |
| NATIONAL ENERGY FOUNDATION INC | $15,102,158 | C60 | published | | Murray, UT | 2024 |
| INSTITUTE FOR ENERGY ECONOMICS AND FINANCIAL ANALYSIS INC | $15,100,200 | C60 | published | | Valley City, OH | 2025 |
| KIPP NORTH PHILADELPHIA CHARTER SCHOOL | $14,986,170 | C60 | published | | Philadelphia, PA | 2024 |
| GREENTOWN COLLABORATIVE INC | $14,959,742 | C60 | published | science: research education | Somerville, MA | 2024 |
| CATHLEEN STONE ISLAND OUTWARD BOUND SCHOOL INC | $14,657,645 | C60 | published | | Boston, MA | 2024 |
| SPIRAL HOUSE PARK | $14,622,162 | C60 | published | | Saugerties, NY | 2024 |
| COOL EFFECT INC | $14,590,555 | C60 | published | science: research education | Greenbrae, CA | 2024 |
| SURFRIDER FOUNDATION | $14,490,016 | C60 | published | | San Clemente, CA | 2024 |
| ISLANDWOOD | $13,263,034 | C60 | published | science: research education | Bainbridge Is, WA | 2024 |
| EMPIRE DISCOVERY INSTITUTE INC | $13,220,638 | C60 | published | science: research education | Rochester, NY | 2024 |
| SHELBURNE FARMS | $11,958,152 | C60 | published | | Shelburne, VT | 2025 |
| CLIMATE POWER EDUCATION FUND | $11,510,629 | C60 | published | survivor: disaster | Washington, DC | 2024 |
| GLOBAL ENVIRONMENT & TECHNOLOGY FOUNDATION | $10,998,224 | C60 | published | women: issues | Arlington, VA | 2024 |
| CHIPPEWA NATURE CENTER INC | $10,951,591 | C60 | published | girls boys: girl scouts | Midland, MI | 2025 |
| CINCINNATI NATURE CENTER ASSOCIATION | $10,827,008 | C60 | published | girls boys: boys girls clubs | Milford, OH | 2024 |
| BOSTON HARBOR NOW INC | $10,122,273 | C60 | published | | Boston, MA | 2024 |
| WILDERNESS INQUIRY INC | $9,972,306 | C60 | published | | Bloomington, MN | 2025 |
| OUTWARD BOUND INC | $9,836,006 | C60 | published | | Boulder, CO | 2024 |
| MISSION POSSIBLE PARTNERSHIP USA INC | $9,702,435 | C60 | published | | Washington, DC | 2024 |
| KALAMAZOO NATURE CENTER INC | $9,522,496 | C60 | published | science: research education | Kalamazoo, MI | 2024 |
| REDFORD CENTER INC | $8,112,694 | C60 | published | launch: launch | San Francisco, CA | 2025 |
| CHEWONKI FOUNDATION INC | $7,991,240 | C60 | published | science: research education | Wiscasset, ME | 2024 |
| THE LONGLEAF ALLIANCE INC | $7,972,811 | C60 | published | | Andalusia, AL | 2024 |
| THE MOUNTAINEERS | $7,907,895 | C60 | published | science: research education | Seattle, WA | 2024 |
| ARMAND BAYOU NATURE CENTER INC | $7,828,019 | C60 | published | science: research education | Houston, TX | 2024 |
| CHATTAHOOCHEE NATURE CENTER INC | $7,578,349 | C60 | published | | Roswell, GA | 2024 |
| CANYONLANDS NATURAL HISTORY ASSOCIATION | $7,516,714 | C60 | published | | Moab, UT | 2025 |
| NORTH CAROLINA OUTWARD BOUND SCHOOL | $7,504,454 | C60 | published | | Asheville, NC | 2024 |
| COLORADO OUTDOOR EDUCATION CENTER | $7,260,024 | C60 | published | | Florissant, CO | 2024 |
| NEXTGEN CLIMATE AMERICA INC | $7,101,248 | C60 | published | science: research education | Redwood City, CA | 2024 |
| Bird Studies Canada | $7,046,287 | C60 | inferred 0.60 | science: research education | Port Rowan, Ontario | 2021 |
| CLEAN ECONOMY FUND | $6,977,141 | C60 | published | | Washington, DC | 2025 |
| WIND RIVER TRIBAL BUFFALO INITIATIVE | $6,901,953 | C60 | published | | Kinnear, WY | 2024 |
| THE BOAT COMPANY LTD | $6,631,120 | C60 | inferred 0.60 | science: research education | Ponte Vedra, FL | 2024 |
| TIMBERVIEW FARMSTEAD INC | $6,512,909 | C60 | published | | Fort Worth, TX | 2024 |
| ECO CENTER INC | $6,480,367 | C60 | published | | San Juan Capo, CA | 2024 |
| CONSERVANCY FOR CUYAHOGA VALLEY NATIONAL PARK | $6,264,820 | C60 | published | science: research education | Peninsula, OH | 2024 |
| ASPEN CENTER FOR ENVIRONMENTAL STUDIES | $6,250,553 | C60 | published | science: research education | Aspen, CO | 2024 |
| ALASKA GEOGRAPHIC ASSOCIATION | $6,228,182 | C60 | published | | Anchorage, AK | 2025 |
| SQUAM LAKES NATURAL SCIENCE CENTER | $6,166,667 | C60 | published | science: research education | Holderness, NH | 2025 |
| WM SYMPOSIA INC | $6,079,111 | C60 | published | | Tempe, AZ | 2024 |
| DREAM ORG | $6,039,327 | C60 | published | women: issues | Oakland, CA | 2025 |
| NEW YORK CITY OUTWARD BOUND CENTER INC | $6,024,863 | C60 | published | | Long Is City, NY | 2024 |
| AMERICAN FLOOD COALITION INC | $6,022,827 | C60 | published | | Washington, DC | 2024 |
| INTERNATIONAL LIVING FUTURE INSTITUTE | $5,897,028 | C60 | published | women: issues | Portland, OR | 2024 |
| SONOMA ECOLOGY CENTER | $5,876,143 | C60 | published | science: research education | Eldridge, CA | 2024 |
| CENTRAL CALIFORNIA ENVIRONMENTAL JUSTICE NETWORK | $5,863,581 | C60 | published | | Fresno, CA | 2024 |
| WATERSHED INSTITUTE INC | $5,736,143 | C60 | published | science: research education | Pennington, NJ | 2024 |
| REVERB INC | $5,723,159 | C60 | published | launch: launch | Portland, ME | 2025 |
| MYSTIC RIVER WATERSHED ASSOCIATION INC | $5,653,194 | C60 | published | science: research education | Arlington, MA | 2025 |
| ADIRONDACK MOUNTAIN CLUB INC | $5,568,214 | C60 | published | science: research education | Lake Placid, NY | 2024 |
| SOAR INC | $5,523,005 | C60 | published | | Balsam, NC | 2024 |
| RESOURCE CENTRAL | $5,511,846 | C60 | published | | Boulder, CO | 2025 |
| INTERNATIONAL CONSERVATION CAUCUS FOUNDATION | $5,509,027 | C60 | published | | Washington, DC | 2025 |
| ASHOKAN CENTER INC | $5,424,808 | C60 | published | | Olivebridge, NY | 2024 |
| GULF OF MEXICO ALLIANCE | $5,320,625 | C60 | published | science: research education | Ocean Springs, MS | 2025 |
| HEAL THE BAY | $5,270,383 | C60 | published | | Santa Monica, CA | 2024 |
| JOSHUA TREE NATIONAL PARK ASSOC | $5,229,013 | C60 | published | science: research education | Twentynin Plm, CA | 2024 |
| MISSOURI CONSERVATION HERITAGE FOUNDATION | $5,191,372 | C60 | published | women: issues | Jefferson Cty, MO | 2024 |
| BACKCOUNTRY HUNTERS AND ANGLERS | $5,069,353 | C60 | published | science: research education | Missoula, MT | 2025 |
| OUTRIDER FOUNDATION INC | $5,058,800 | C60 | published | science: research education | Madison, WI | 2025 |
| VOYAGEUR OUTWARD BOUND SCHOOL | $5,019,994 | C60 | published | | St Paul, MN | 2025 |
| THE TRUST FOR HIDDEN VILLA | $4,992,886 | C60 | published | | Los Altos Hls, CA | 2024 |
| HAWAII PACIFIC PARKS ASSOCIATION LTD | $4,990,404 | C60 | published | | Hi Natl Park, HI | 2024 |
| HURRICANE ISLAND OUTWARD BOUND SCHOOL | $4,935,044 | C60 | published | | Camden, ME | 2024 |
| SEQUOIA PARKS CONSERVANCY | $4,833,068 | C60 | published | | Three Rivers, CA | 2024 |
| HIGH COUNTRY NEWS | $4,774,808 | C60 | published | | Paonia, CO | 2024 |
| FRIENDS OF THE MISSISSIPPI RIVER | $4,639,512 | C60 | published | | Saint Paul, MN | 2024 |
| INLAND SEAS EDUCATION ASSOCIATION | $4,591,108 | C60 | published | science: research education | Suttons Bay, MI | 2025 |
| NORTH CASCADES INSTITUTE | $4,586,653 | C60 | published | science: research education | Sedro Woolley, WA | 2024 |
| SHELTERWOOD COLLECTIVE | $4,495,790 | C60 | published | | Cazadero, CA | 2025 |
| PHYSICIANS SCIENTISTS AND ENGINEERS FOR SUSTAINABLE AND HEALTHY ENE | $4,456,330 | C60 | published | science: research education | Oakland, CA | 2024 |
| HIGHTS INC | $4,435,281 | C60 | published | violence: community | Cullowhee, NC | 2024 |
| TEN STRANDS | $4,416,872 | C60 | published | science: research education | San Francisco, CA | 2024 |
| BRYCE CANYON NATURAL HISTORY ASSOCIATION | $4,353,299 | C60 | published | space: outer | Bryce, UT | 2025 |
| LAKE SUPERIOR CENTER | $4,279,361 | C60 | published | | Duluth, MN | 2025 |
| CARBONPLAN | $4,170,831 | C60 | published | | San Francisco, CA | 2025 |
| EARTHPLACE THE NATURE DISCOVERY CENTER INC | $4,054,582 | C60 | published | domestic: animals | Westport, CT | 2024 |
| DELAWARE NATURE SOCIETY INC | $4,039,490 | C60 | published | science: research education | Hockessin, DE | 2024 |
| ENVIRONMENTAL HEALTH WATCH INC | $4,034,955 | C60 | published | girls boys: boys girls clubs | Cleveland, OH | 2024 |
| SUST AINA BLE MOLOKAI | $4,019,386 | C60 | published | | Kaunakakai, HI | 2024 |