| Friends of Jackson JT Parks & RecreationJackson | Form 990-N | No figure |
| Juneau Park Friends IncMilwaukee | Form 990-N | No figure |
| Decatur Lake and Mill Race Association IncBrodhead | Form 990-N | No figure |
| Wisconsin Friends of John MuirMontello | Form 990-N | No figure |
| Lake Winnebago Quality Improvement AssociationFond du Lac | Form 990-N | No figure |
| Barron County Master GardenersRice Lake | Form 990-N | No figure |
| Big Sand Lake Association IncSiren | Form 990-N | No figure |
| White Sand Lake AssociationFitchburg | Form 990-N | No figure |
| Friends of Allen Centennial GardensMadison | Form 990-N | No figure |
| Buckthorn Project IncWauwatosa | Form 990-N | No figure |
| Pickerel Chain Lake AssociationTownsend | Form 990-N | No figure |
| Lake Hayward Property Owners Association IncHayward | Form 990-N | No figure |
| Anderson Park FriendsOregon | Form 990-N | No figure |
| Clam Lake Forest RidersClam Lake | Form 990-N | No figure |
| Milwaukee Bonsai Foundation IncorporatedFox Point | Form 990-N | No figure |
| Ancient Earthworks Society of Wisconsin IncMadison | Form 990-N | No figure |
| Berry Lake Property Owners AssociationNeenah | Form 990-N | No figure |
| Lake Wisconsin AlliancePoynette | Form 990-N | No figure |
| Van Zile Lake Association IncNewald | Form 990-N | No figure |
| Enhance Alma IncNelson | Form 990-N | No figure |
| Wisconsin Hardy Plant SocietyMadison | Form 990-N | No figure |
| Friends of the White River County ParkSpringfield | Form 990-N | No figure |
| Milwaukee River Preservation AllianceGlendale | Form 990-N | No figure |
| Clean Water Association IncPewaukee | Form 990-N | No figure |
| Tropical Wings IncHudson | Form 990-N | No figure |
| Lower Chippewa Invasives Partnership IncMenomonie | Form 990-N | No figure |
| Deerskin Lake Association IncEagle River | Form 990-N | No figure |
| Growing South Milwaukee IncSouth Milwaukee | Form 990-N | No figure |
| Stop Global Warming Foundation IncMadison | Form 990-N | No figure |
| Rush Lake Watershed Restoration IncRipon | Form 990-N | No figure |
| Wisconsin Garden Club FederationAppleton | Form 990-N | No figure |
| Friends of the Platte River IncCuba City | Form 990-N | No figure |
| Cranberry Lake-Flowage AssociationWascott | Form 990-N | No figure |
| Light Straw Clay Collaborative IncMadison | Form 990-N | No figure |
| Friends of Trempealeau Refuge IncTrempealeau | Form 990-N | No figure |
| Devils Lake Property Owners Assoc IncWebster | Form 990-N | No figure |
| Shullsburg Conservation Club IncShullsburg | Form 990-N | No figure |
| Perch Lake Owners AssociationMadison | Form 990-N | No figure |
| Elkhart Lake Improvement Association IncElkhart Lake | Form 990-N | No figure |
| Driftless Defenders IncSpring Green | Form 990-N | No figure |
| Des Moines Lake Association IncDanbury | Form 990-N | No figure |
| Friends of Namekagon Barrens Wildlife AreaSpooner | Form 990-N | No figure |
| Twin Lakes Association IncMarkesan | Form 990-N | No figure |
| Delavan Rotary Gardens Foundation IncDelavan | Form 990-N | No figure |
| Midwest Archaeological Conference IncBeloit | Form 990-N | No figure |
| Milwaukee Area Land ConservancyFranklin | Form 990-N | No figure |
| Squash Lake AssociationRhinelander | Form 990-N | No figure |
| Long Lake Association-Shawano CountyEmbarrass | Form 990-N | No figure |
| Friends of the Kettle PondsMiddleton | Form 990-N | No figure |
| Friends of the Tuscobia Trail IncWinter | Form 990-N | No figure |