| Lake Winnetka and Sugar River Improvement Association IncAlbany | Form 990-N | No figure |
| Parker Lake Association IncOxford | Form 990-N | No figure |
| Friends of Rowan Creek IncPoynette | Form 990-N | No figure |
| Gull Lake Association IncSpringbrook | Form 990-N | No figure |
| Blue Mounds Project IncMount Horeb | Form 990-N | No figure |
| Outagamie Counyt Master Gardner AssociationAppleton | Form 990-N | No figure |
| Twin Lakes Conservancy IncShorewood | Form 990-N | No figure |
| Invasive Plants Association of Wisconsin IncorporatedMadison | Form 990-N | No figure |
| Loon Lake Property Owners Association IncDanbury | Form 990-N | No figure |
| Friends of McCarthy Park IncCottage Grove | Form 990-N | No figure |
| Friends of Hickory Ridge Trail IncChippewa Falls | Form 990-N | No figure |
| Blockhouse Lake Association IncPark Falls | Form 990-N | No figure |
| North Central Wisconsin Master Gardeners Association IncWausau | Form 990-N | No figure |
| Friends of the Lakeshore Nature Preserve IncMadison | Form 990-N | No figure |
| Lake Arbutus AssociationMerrillan | Form 990-N | No figure |
| Golden Lake Association IncOconomowoc | Form 990-N | No figure |
| Eau Claire Area Master Gardeners AssociationEau Claire | Form 990-N | No figure |
| Oxbow Lake Association IncPresque Isle | Form 990-N | No figure |
| Friends of Horicon National Wildlife RefugeMayville | Form 990-N | No figure |
| Native Voices for EnergyAshland | Form 990-N | No figure |
| Drifts Edge Nature ConservatoryBelleville | Form 990-N | No figure |
| Legacy Timber Foundation IncWausau | Form 990-N | No figure |
| World Wide Needs IncJackson | Form 990-N | No figure |
| Driftless Compost Collective IncorperatedLa Farge | Form 990-N | No figure |
| Oak Outreach Wisconsin IncSussex | Form 990-N | No figure |
| Environmental Data Institute IncMadison | Form 990-N | No figure |
| Friends of Fitchburg Wisconsin Parks and Natural Areas IncFitchburg | Form 990-N | No figure |
| Little Lake Butte Des Morts Lake Assoc IncMenasha | Form 990-N | No figure |
| Friends of Six Mile Creek IncWaunakee | Form 990-N | No figure |
| Willow Region Sportsmens Club IncTripoli | Form 990-N | No figure |
| Wisconsin Garden Club FederationSun Prairie | Form 990-N | No figure |
| Wisconsin Iris SocietyMequon | Form 990-N | No figure |
| Carpenter Lake Association IncEagle River | Form 990-N | No figure |
| Wisconsin Garden Club FederationCadott | Form 990-N | No figure |
| School Section Sportsmans AssociationPlymouth | Form 990-N | No figure |
| Mississippi Walleye ClubPlatteville | Form 990-N | No figure |
| Desair Lake Restoration IncRice Lake | Form 990-N | No figure |
| Pewaukee River Partnership IncPewaukee | Form 990-N | No figure |
| Flannery Velvet Lake Association IncRhinelander | Form 990-N | No figure |
| Hancock Lake Association IncHarshaw | Form 990-N | No figure |
| Crowned & Covered Foundation IncRacine | Form 990-N | No figure |
| Sandstone Flowage Association IncCrivitz | Form 990-N | No figure |
| Friends of the Mill Pond & Oak Creek WatercourseSouth Milwaukee | Form 990-N | No figure |
| Wild Rose Education Center and Nature Preserve IncDousman | Form 990-N | No figure |
| Ipm Voice IncMadison | Form 990-N | No figure |
| Root River Council IncCaledonia | Form 990-N | No figure |
| Vilas County Lakes Association CorpEagle River | Form 990-N | No figure |
| Little Bearskin Lake Association IncNashotah | Form 990-N | No figure |
| Adams County Lake AllianceOxford | Form 990-N | No figure |
| Turtles for Tomorrow LtdMadison | Form 990-N | No figure |