| CATALYST4 INC | Palo Alto | CA | $700.8M | 0 |
| NEW VENTURE FUND | Washington | DC | $669.1M | 8 |
| CENTER FOR SUSTAINABLE ENERGY | San Diego | CA | $502.9M | 8 |
| WORLD WILDLIFE FUND INC | Washington | DC | $374.8M | 13 |
| THE CONSERVATION FUND A NONPROFIT | Arlington | VA | $373.2M | 14 |
| DUCKS UNLIMITED INC | Memphis | TN | $302.2M | 14 |
| ENVIRONMENTAL DEFENSE FUND INCORPORATED | New York | NY | $298.7M | 13 |
| THE TRUST FOR PUBLIC LAND | San Francisco | CA | $297.4M | 25 |
| KOHLER TRUST FOR CLEAN WATER | Kohler | WI | $287.6M | 0 |
| ISO NEW ENGLAND INC | Holyoke | MA | $264.6M | 37 |
| ENERGY TRUST OF OREGON INC | Portland | OR | $251.2M | 7 |
| CONSERVATION INTERNATIONAL FOUNDATION | Arlington | VA | $235.1M | 12 |
| WINDWARD FUND | Washington | DC | $212.4M | 6 |
| Climate Imperative Foundation | San Francisco | CA | $206.7M | 0 |
| NATURAL RESOURCES DEFENSE COUNCIL INC | New York | NY | $193.1M | 16 |
| SIXTEEN THIRTY FUND | Washington | DC | $181.4M | 6 |
| NATIONAL AUDUBON SOCIETY INC | New York | NY | $156.1M | 13 |
| MARSHALL AREA ECONOMIC DEVELOPMENT | Marshall | MI | $151.6M | 0 |
| VERMONT ENERGY INVESTMENT CORPORATION | Winooski | VT | $130.9M | 22 |
| EARTHJUSTICE | San Francisco | CA | $126M | 13 |
| Great Hearts America-Texas | San Antonio | TX | $110.8M | 14 |
| NEW YORK BOTANICAL GARDEN | Bronx | NY | $110.4M | 12 |
| SIERRA CLUB FOUNDATION | Oakland | CA | $108.2M | 7 |
| CITY OF OAKS FOUNDATION INC | Raleigh | NC | $105.2M | 1 |
| KLAMATH RIVER RENEWAL CORPORATION | Berkeley | CA | $104.8M | 4 |
| NATIONAL ARBOR DAY FOUNDATION | Lincoln | NE | $99.1M | 19 |
| THE URBAN LAND INSTITUTE | Washington | DC | $93.1M | 18 |
| SOCIAL & ENVIRONMENTAL ENTREPRENEURS | Calabasas | CA | $87.5M | 7 |
| PaintCare Inc | Washington | DC | $84.7M | 10 |
| KANSAS ASSOCIATION OF CHILD CARE | Salina | KS | $81M | 2 |
| RESOURCES LEGACY FUND | Sacramento | CA | $79.6M | 13 |
| MISSOURI BOTANICAL GARDEN BOARD OF | St Louis | MO | $75.3M | 13 |
| MULTIPLIER | San Francisco | CA | $75M | 7 |
| OPEN SPACE INSTITUTE LAND TRUST INC | New York | NY | $74.8M | 18 |
| MASSACHUSETTS AUDUBON SOCIETY INC | Lincoln | MA | $73.7M | 12 |
| C40 Cities Climate Leadership Group Inc | New York | NY | $73.6M | 8 |
| GLOBAL FISHING WATCH INC | Washington | DC | $69.5M | 9 |
| ALLIANCE TO END PLASTIC WASTE INC | Austin | TX | $68.3M | 12 |
| CHICAGO HORTICULTURAL SOCIETY | Glencoe | IL | $68.1M | 14 |
| THE ATLANTA BOTANICAL GARDEN INC | Atlanta | GA | $65.3M | 9 |
| THE TRUSTEES OF RESERVATIONS | Boston | MA | $64.9M | 13 |
| GRID ALTERNATIVES | Oakland | CA | $63.3M | 8 |
| NATIONAL WILD TURKEY FEDERATION INC | Edgefield | SC | $63.1M | 10 |
| DUCKS UNLIMITED INC GROUP RETURN | Memphis | TN | $59.3M | 14 |
| SAVE THE REDWOODS LEAGUE | San Francisco | CA | $57.8M | 10 |
| LEAGUE OF CONSERVATION VOTERS EDUCATION | Washington | DC | $51.5M | 3 |
| Elevate Energy | Chicago | IL | $50.9M | 6 |
| GOLDEN GATE NATIONAL PARKS CONSERVANCY | San Francisco | CA | $50.7M | 15 |
| US GREEN BUILDING COUNCIL INC | Washington | DC | $50.3M | 9 |
| BONNEVILLE ENVIRONMENTAL FOUNDATION | Portland | OR | $49.6M | 8 |
