| Alpha Pi Alliance for the Preserva Tion of Historic Places IncVerona | Form 990-N | No figure |
| Lac Vieux Desert Lake Association IncLand O'Lakes | Form 990-N | No figure |
| Delava N Lake Improvement AssociationDelavan | Form 990-N | No figure |
| Fort Atkinson Wisconservation Club IncFort Atkinson | Form 990-EZ | $39,459FY2025 |
| Clean Water Action Council of Northeast Wisconsin IncGreen Bay | Form 990-N | No figure |
| Yellow Lakes and River Assoc IncWebster | Form 990-EZ | $39,148FY2025 |
| Red Cedar Lakes Association IncBirchwood | Form 990-N | No figure |
| Clover Leaf Lakes Protective Association IncEmbarrass | Form 990-N | No figure |
| Community Improvement of Algoma LtdAlgoma | Form 990-EZ | $31,511FY2025 |
| Friends of the North Pikes Creek WetlandsBayfield | Form 990-N | No figure |
| White Lake Preservation Association LtdWeyauwega | Form 990-N | No figure |
| Buffalo County Land & Trails Trust IncAlma | Form 990-N | No figure |
| Stockbridge Harbor Fishing Club IncStockbridge | Form 990-EZ | $23,737FY2025 |
| Lower Sugar River Watershed Association IncBrodhead | Form 990-N | No figure |
| Crystal Lake Assoc IncOconomowoc | Form 990-N | No figure |
| Crawling Stone Lakes AssociationLac du Flambeau | Form 990-N | No figure |
| Whitetails Unlimited IncStratford | Form 990-EZ | $19,532FY2025 |
| Friends of Harrington Beach State Park IncBelgium | Form 990-N | No figure |
| Wolf Run Association IncorporatedMazomanie | Form 990-N | No figure |
| Friends of Pattison and Amnicon Falls State Parks IncSuperior | Form 990-N | No figure |
| Ozaukee Master GardenersGrafton | Form 990-N | No figure |
| Chippewa County Land Conservancy IncChippewa Falls | Form 990-N | No figure |
| Walleye Restoration Foundation IncStar Lake | Form 990-N | No figure |
| Wild Path Collective IncorporatedOsceola | Form 990-N | No figure |
| Friends of the Bird Sanctuary IncGordon | Form 990-N | No figure |
| Wisconsin Metro Audubon Society IncFranklin | Form 990-N | No figure |
| Winnebago Conservation Club IncOshkosh | Form 990-N | No figure |
| INNOV8TEC IncSiren | Form 990-N | No figure |
| Fay Lake Association IncSheboygan | Form 990-N | No figure |
| Plymouth Mill Pond Lake Association IncPlymouth | Form 990-N | No figure |
| Hidden Lake Conservancy IncBrookfield | Form 990-N | No figure |
| Popple Lake Association IncChippewa Falls | Form 990-N | No figure |
| New Organic Solutions IncAppleton | Form 990-N | No figure |
| Midwest HoundsmenBoyceville | Form 990-N | No figure |
| Friends of SylvaniaMadison | Form 990-N | No figure |
| Star Lakes-Little Star Lakesassociation IncMenomonee Falls | Form 990-N | No figure |
| Wisconsin Land Conservationfoundation IncHartford | Form 990-N | No figure |
| Silver Lake AssociationCumberland | Form 990-N | No figure |
| Rock County Multi-Use Trails Group IncJanesville | Form 990-N | No figure |
| Nelson Lake Association IncHayward | Form 990-N | No figure |
| Friends of the Mukwonago River IncEagle | Form 990-N | No figure |
| Lotus Lake AssociationDresser | Form 990-N | No figure |
| Wisconsin Garden Club FederationSheboygan | Form 990-N | No figure |
| Property Owners Association Inc Barnes/Eau Claire Lakes AreaHayward | Form 990-N | No figure |
| Winter Lakes Alliance IncWinter | Form 990-N | No figure |
| Land Trust Network of Jefferson County IncWatertown | Form 990-N | No figure |
| Dodge County Master Gardener AssociationBeaver Dam | Form 990-N | No figure |
| Lake George Lake AssociationRhinelander | Form 990-N | No figure |
| Children of the Earth United IncFitchburg | Form 990-N | No figure |
| Lake Koshkonong Wetland Association IncFort Atkinson | Form 990-N | No figure |