| One Hundred Club of SaginawSaginaw | Form 990 | $367,081FY2024 |
| Saginaw Bay Walleye Club Inc Conservation FundBay City | Form 990 | $359,888FY2025 |
| Protect Forest LakesMayfield | Form 990 | $355,513FY2025 |
| Forbush Corner NordicGaylord | Form 990 | $354,732FY2026 |
| Michigan Lakes and Streams Association IncKalamazoo | Form 990 | $352,183FY2025 |
| Land Information Access AssociationTraverse City | Form 990 | $349,188FY2025 |
| Muskegon Area Chamber of Commerce FoundationMuskegon | Form 990 | $348,978FY2024 |
| Healthy Flint Research Coordinating CenterFlint | Form 990 | $343,199FY2024 |
| New Power Tour IncHancock | Form 990 | $332,071FY2025 |
| Michigan Municipal Wetland Alliance IncLansing | Form 990 | $324,309FY2024 |
| Aquatic Ecosystem Restoration FoundationCadillac | Form 990 | $323,924FY2025 |
| Friends of the St Clair River WatershedSaint Clair | Form 990 | $316,418FY2024 |
| Alliance for Environmental SustainabilityGrand Rapids | Form 990 | $315,701FY2024 |
| Grosse Pointe Farms FoundationGrosse Pointe Farms | Form 990 | $311,462FY2025 |
| Higgins Lake FoundationRoscommon | Form 990 | $302,113FY2025 |
| Great Lakes Bay Region Quality of Life CouncilSaginaw | Form 990 | $301,118FY2025 |
| Detroit Bird AllianceDetroit | Form 990 | $297,357FY2024 |
| Independence Land ConservancyClarkston | Form 990 | $292,866FY2024 |
| Grosse Pointe Shores Improvement FoundationGrosse Pointe Shores | Form 990 | $271,146FY2024 |
| Southeast Michigan Land ConservancySuperior Twp | Form 990 | $268,969FY2024 |
| Saugatuck Dunes Coastal AllianceSaugatuck | Form 990 | $268,933FY2025 |
| Releaf Michigan IncAnn Arbor | Form 990 | $266,223FY2024 |
| Heart of the Lakes Center for Land Conservation PolicyBay City | Form 990 | $264,989FY2025 |
| Torch Lake Protection AllianceBellaire | Form 990 | $263,751FY2025 |
| Pierce Park Nature PreserveFlint | Form 990 | $257,877FY2025 |
| Workin RootzDetroit | Form 990 | $255,803FY2024 |
| Carter P Brown Legacy Preservation FundHolland | Form 990 | $255,210FY2025 |
| Shiawassee Conservation AssocOwosso | Form 990 | $249,007FY2025 |
| Association of Outdoor Recreation and EducationAnn Arbor | Form 990 | $244,125FY2025 |
| Chandler Park ConservancyDetroit | Form 990 | $235,449FY2024 |
| Preserve Old Mission PeninsulaTraverse City | Form 990 | $221,024FY2025 |
| Michigan Turfgrass Foundation C/O Dept of Crop & Soil ScienceLansing | Form 990 | $220,577FY2025 |
| Crystal Lake & Watershed AssociationBeulah | Form 990 | $219,350FY2025 |
| Chippewa Watershed Conservancy IncMount Pleasant | Form 990 | $202,710FY2024 |
| Michigan Garden Clubs IncKalamazoo | Form 990 | $199,734FY2025 |
| Rescue MI Nature Now IncDetroit | Form 990-EZ | $199,523FY2024 |
| Freedom Summit Adventures IncGrand Rapids | Form 990-EZ | $196,782FY2025 |
| Aqua Clara InternationalHolland | Form 990-EZ | $195,898FY2024 |
| Beautify PullmanPullman | Form 990-EZ | $195,481FY2025 |
| Kalamazoo River Watershed Public Advisory CouncilKalamazoo | Form 990-EZ | $178,854FY2025 |
| Underground Corrosion Short Course IncAnn Arbor | Form 990-EZ | $178,356FY2024 |
| Glass Recycling FoundationAnn Arbor | Form 990-EZ | $173,353FY2024 |
| The Mid-Michigan Land ConservancyOkemos | Form 990 | $170,860FY2025 |
| Cadillac Area Land ConservancyCadillac | Form 990 | $168,972FY2025 |
| West Central Michigan Horticultural Research IncShelby | Form 990 | $168,560FY2025 |
| National Preservation Partners NetworkLansing | Form 990-EZ | $167,907FY2025 |
| Top of Michigan Mountain Bike AssocBoyne City | Form 990-EZ | $165,521FY2025 |
| Berrien ConnectionBenton Harbor | Form 990-EZ | $159,669FY2024 |
| Indian River Snowmobile Grooming ClubIndian River | Form 990-EZ | $158,043FY2025 |
| The Treeline ConservancyAnn Arbor | Form 990 | $156,979FY2025 |