| WILDLIFE CONSERVATION SOCIETY | 131740011 | 2017-06-30 | $227K | CONSERVATION |
| UNITED STATES ENDOWMENT FORFORESTRY AND COMMUNITIES INC | 205583324 | 2018-12-31 | $107K | HEALTHY WATERSHED CONSORTIUM |
| UNITED STATES ENDOWMENT FORFORESTRY AND COMMUNITIES INC | 205583324 | 2019-12-31 | $74K | HEALTHY WATERSHED CONSORTIUM |
| NATIONAL FISH AND WILDLIFE FOUNDATION | 521384139 | 2024-09-30 | $65K | RESTORING NORTON CREEK HABITAT IN MICHIGAN |
| ANN ARBOR AREA COMMUNITY FOUNDATION | 386087967 | 2018-12-31 | $64K | MULTIPLE PROGRAM SUPPORT |
| GLOBAL PHILANTHROPY PARTNERSHIP | 562342600 | 2017-09-30 | $62K | URBAN SUSTAINABILITY |
| NATIONAL FISH AND WILDLIFE FOUNDATION | 521384139 | 2023-09-30 | $58K | WATER QUALITY IMPROVEMENTS |
| RAYMOND JAMES CHARITABLE ENDOWMENT FUND | 593652538 | 2025-03-31 | $52K | GENERAL SUPPORT |
| GREAT LAKES FISHERY TRUST INC | 383331471 | 2018-12-31 | $50K | RESEARCH |
| WILDLIFE CONSERVATION SOCIETY | 131740011 | 2019-06-30 | $48K | CONSERVATION |
| GREAT LAKES FISHERY TRUST INC | 383331471 | 2024-12-31 | $44K | HRWC YOUTH EDUCATION PROGRAMMING |