| EIN 364334358 | 364334358 | 2016-12-31 | $557K | Acquisition of Shawnee National Forest - Mississippi River Bottomlands (218 acres) |
| EIN 364334358 | 364334358 | 2018-12-31 | $310K | Acquisition of Kaskaskia River Bottomland Forest (140 acres) |
| EIN 364334358 | 364334358 | 2023-12-31 | $252K | Acquisition of Illinois Chorus Frog Habitat in the Poag SandTerrace INAI site (40 acres) |
| THE CONSERVATION FUND A NONPROFIT CORPORATION | 521388917 | 2023-12-31 | $101K | CONSERVATION OF NATURAL RESOURCES;SUSTAINABLE ECONOMIC & COMMUNITY DEVELOPMENT |
| AMERICAN ONLINE GIVING FOUNDATION INC | 810739440 | 2023-03-31 | $100K | GENERAL SUPPORT |
| EIN 364334358 | 364334358 | 2019-12-31 | $72K | Acquisition of Kathleen Scanlan Conservation Area addition (38 acres) |
| WINDWARD FUND | 473522162 | 2022-12-31 | $50K | ENVIRONMENTAL PROGRAMS |
| EIN 364334358 | 364334358 | 2022-12-31 | $20K | Southern Illinois Service Area Expansion Feasibility and Strategic Plan Update |
| EIN 364334358 | 364334358 | 2022-12-31 | $10K | HeartLand Conservancy Outdoor Classroom at Swansea Clinton Hills Conservation Park |
| EIN 364334358 | 364334358 | 2018-12-31 | $10K | Signal Hill Outdoor Classroom |
| VANGUARD CHARITABLE ENDOWMENT PROGRAM | 232888152 | 2025-06-30 | $7K | FOR RECIPIENT'S EXEMPT PURPOSE |
| EIN 364334358 | 364334358 | 2018-12-31 | $5K | Public Amenities and Events at Arlington Wetlands |
| EIN 364334358 | 364334358 | 2018-12-31 | $3K | Acquisition of Shawnee National Forest - Mississippi River Bottomlands (218 acres) |
| AMERICAN ONLINE GIVING FOUNDATION INC | 810739440 | 2026-03-31 | $0 | GENERAL SUPPORT |