| 1 | Morton Arboretum Lisle | $164.6M | $57.8M | $367.6M |
| 2 | Elevate Energy Chicago | $84.0M | $60.9M | $58.3M |
| 3 | Chicago Horticultural Society Glencoe | $80.5M | $68.1M | $359.1M |
| 4 | Lake Forest Open Lands Association Lake Forest | $16.5M | $8.9M | $82.4M |
| 5 | Environmental Law & Policy Center of the Midwest Chicago | $16.5M | $10.9M | $41.5M |
| 6 | Water Quality Association Lisle | $15.7M | $15.7M | $15.1M |
| 7 | Rockford Park District Foundation Rockford | $15.2M | $4.2M | $14.7M |
| 8 | Jo Daviess Conservation Foundation INC Elizabeth | $13.0M | $2.9M | $21.4M |
| 9 | Illinois Audubon Society Springfield | $10.8M | $3.8M | $56.5M |
| 10 | Nells Foundation Ottawa | $10.1M | $0 | $20.6M |
| 11 | Climate Vault INC Chicago | $8.2M | $6.0M | $18.6M |
| 12 | Conservation Foundation Naperville | $7.8M | $7.5M | $21.2M |
| 13 | Lee a & Mary Jane Rieth Foundation for Environmental Education Chicago | $7.8M | $0 | $21.2M |
| 14 | Natural Land Institute Rockford | $6.3M | $2.9M | $22.5M |
| 15 | Current Innovation Nfp Chicago | $5.9M | $5.9M | $4.4M |
| 16 | Friends of Wildlife Prairie Park Hanna City | $5.3M | $4.6M | $16.4M |
| 17 | Center for Neighborhood Technology Chicago | $4.8M | $4.8M | $3.7M |
| 18 | Water Quality Research Foundation Lisle | $4.7M | $294K | $5.4M |
| 19 | Midwest Energy Efficiency Alliance Chicago | $4.7M | $4.7M | $4.3M |
| 20 | Prairie Rivers Network Champaign | $4.6M | $1.6M | $5.8M |
| 21 | Garfield Park Conservatory Alliance Chicago | $4.3M | $3.9M | $7.6M |
| 22 | The Wetlands Initiative Chicago | $4.1M | $3.5M | $12.7M |
| 23 | Evergreen Climate Innovations Chicago | $3.9M | $3.7M | $19.2M |
| 24 | Brushwood Center at Ryerson Woods Riverwoods | $3.8M | $3.7M | $5.1M |
| 25 | Council of Great Lakes Governors INC Rolling Mdws | $3.8M | $3.8M | $3.7M |
| 26 | Cub Consumer Education and Researchfund Chicago | $3.7M | $3.7M | $2.0M |
| 27 | Bond Madison Water Company Pocahontas | $3.7M | $3.7M | $12.8M |
| 28 | A M Huntington Trust Fbo Brookgreen Gardens Pv 3584 Chicago | $3.6M | $1.1M | $11.6M |
| 29 | Illinois Environmental Council Education Fund Springfield | $3.6M | $3.0M | $4.2M |
| 30 | Kindness Campaign Chicago | $3.4M | $3.4M | $762K |
| 31 | Passive House Institute US INC Chicago | $3.4M | $3.4M | $3.5M |
| 32 | Preservation Foundation of the Lakecounty Forest Preserves Libertyville | $3.4M | $3.4M | $11.6M |
| 33 | Friends of the Forest Preserves Chicago | $3.2M | $3.1M | $2.9M |
| 34 | Bent of the River Sanctuary Tr P13210003 Chicago | $3.2M | $0 | $10.4M |
| 35 | Renewable Natural Resources Foundation Schaumburg | $3.2M | $788K | $19.9M |
| 36 | Green Era Educational Nfp Chicago | $2.7M | $2.7M | $11.5M |
| 37 | Anderson Gardens Rockford | $2.7M | $2.7M | $14.0M |
| 38 | Living Lands & Waters East Moline | $2.6M | $2.5M | $5.0M |
| 39 | Healthy Schools Campaign Chicago | $2.4M | $2.4M | $2.4M |
| 40 | Nature Conservation Tr Decatur | $2.3M | $0 | $39.5M |
| 41 | The Dupage River Salt Creek Work Group Naperville | $2.3M | $2.3M | $9.8M |
| 42 | Youth Conservation Corps Waukegan | $2.2M | $2.1M | $773K |
| 43 | Heartlands Conservancy Belleville | $2.1M | $2.1M | $4.4M |
| 44 | Black Oaks Center for Sustainable Renewable Living Nfp Chicago | $2.1M | $2.1M | $2.8M |
| 45 | Quad City Botanical Center Foundation Rock Island | $2.1M | $1.9M | $6.4M |
| 46 | Illinois Park and Recreation Association Hinsdale | $2.0M | $2.0M | $2.9M |
| 47 | Pacific Environmental Coalition Chicago | $1.9M | $339K | $956K |
| 48 | Southeast Environmental Task Force Chicago | $1.7M | $1.7M | $1.9M |
| 49 | Grand Prairie Friends Urbana | $1.6M | $977K | $6.3M |
| 50 | Food for Climate League INC Evanston | $1.6M | $1.6M | $869K |