Environment nonprofits in Wisconsin

896 environmental nonprofits in Wisconsin file a Form 990. Together they report $295 million in revenue and hold $1.1 billion in assets.

Browse all 361 environmental nonprofits in Wisconsin →

The largest are Slipstream Group Inc, Revolvs Salvage Inc, and Whitetails Unlimited Inc.

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Environment in Wisconsin

Largest by revenue first.

Slipstream Group Inc 501(c)(3) · Madison, WI	$41.1M
Revolvs Salvage Inc 501(c)(3) · Waupaca, WI	$25.2M
Whitetails Unlimited Inc 501(c)(3) · Sturgeon Bay, WI	$14.3M
Cedar Lakes Conservation Foundation Inc 501(c)(3) · West Bend, WI	$8.6M
Southern Wisconsin Bird Alliance Inc 501(c)(3) · Madison, WI	$8.4M
Urban Ecology Center Inc 501(c)(3) · Milwaukee, WI	$8.4M
KKohler Trust For Clean Water 501(c)(3) · Kohler, WI	$7.6M
Door County Land Trust Inc 501(c)(3) · Sturgeon Bay, WI	$5.7M
Outrider Foundation Inc 501(c)(3) · Madison, WI	$5.5M
Ozaukee Washington Land Trust Inc 501(c)(3) · West Bend, WI	$5.1M
Friends Of Schlitz-Audubon Center Inc 501(c)(3) · Milwaukee, WI	$4.6M
KKohler Trust For Preservation 501(c)(3) · Kohler, WI	$4.5M
Green Bay Botanical Garden Inc 501(c)(3) · Green Bay, WI	$4.3M
Clean Wisconsin Inc 501(c)(3) · Madison, WI	$4.0M
Kuse Farm Museum And Nature Preserve Inc 501(c)(3) · Medford, WI	$4.0M
Aldo Leopold Nature Center Inc 501(c)(3) · Monona, WI	$3.8M
Olbrich Botanical Society Inc 501(c)(3) · Madison, WI	$3.7M
Driftless Area Land Conservancy Inc 501(c)(3) · Dodgeville, WI	$3.7M
Savanna Institute 501(c)(3) · Madison, WI	$3.6M
Robert W Monk Gardens Inc 501(c)(3) · Wausau, WI	$3.5M
CCoalition For Sustainable Initiatives 501(c)(3) · Whitefish Bay, WI	$3.0M
Taliesin Preservation Inc 501(c)(3) · Spring Green, WI	$3.0M
Green Lake Association Inc 501(c)(3) · Green Lake, WI	$2.9M
Wisconsin Conservation Voices Inc 501(c)(3) · Madison, WI	$2.9M
Riveredge Nature Center Inc 501(c)(3) · Newburg, WI	$2.7M
Landmark Conservancy Inc 501(c)(3) · Menomonie, WI	$2.6M
Central Conservation Inc 501(c)(3) · La Crosse, WI	$2.5M
GGreen Forest Inc 501(c)(3) · Madison, WI	$2.2M
Cleantech Partners Inc 501(c)(3) · Middleton, WI	$2.1M
Madison Environmental Resourcing Inc 501(c)(3) · Madison, WI	$2.1M
Leonardo Academy Inc 501(c)(3) · Madison, WI	$2.0M
Glacierland Resource Conservation & Development 501(c)(3) · Green Bay, WI	$2.0M
Tall Pines Conservancy Inc 501(c)(3) · Nashotah, WI	$1.9M
IInstitute For The Study Of Energy And Our Future 501(c)(3) · Ellsworth, WI	$1.9M
Geneva Lake Conservancy Inc 501(c)(3) · Fontana, WI	$1.9M
Wild Rivers Conservancy Of The St Croix & Namekagon 501(c)(3) · Osceola, WI	$1.8M
FFriends Of Reedsburg Parks 501(c)(3) · Reedsburg, WI	$1.8M
Midwest Renewable Energy Association Inc 501(c)(3) · Custer, WI	$1.7M
Woodland Dunes Nature Center And Preserve Inc 501(c)(3) · Two Rivers, WI	$1.6M
Friends Of Lapham Peak Unit Kettle Moraine State Forest 501(c)(3) · Delafield, WI	$1.6M
Golden Sands Resource Conservation And Development Council 501(c)(3) · Stevens Point, WI	$1.5M
Milwaukee Water Commons Inc 501(c)(3) · Milwaukee, WI	$1.5M
Fund For Lake Michigan Inc 501(c)(3) · Milwaukee, WI	$1.4M
Groundswell Conservancy Inc 501(c)(3) · Madison, WI	$1.4M
Wisconsin Land And Water Conservation Association Inc 501(c)(3) · Madison, WI	$1.4M
Rotary Botanical Gardens Inc 501(c)(3) · Janesville, WI	$1.4M
Reflo Inc 501(c)(3) · Milwaukee, WI	$1.4M
Renew Wisconsin Inc 501(c)(3) · Madison, WI	$1.4M
Gathering Waters Inc 501(c)(3) · Madison, WI	$1.3M
Milwaukee Parks Foundation 501(c)(3) · Milwaukee, WI	$1.3M
Lumberjack Resource Conservation And Development Council 501(c)(3) · Rhinelander, WI	$1.3M
Olbrich Botanical Society Foundation Inc 501(c)(3) · Madison, WI	$1.2M
Wild Ones -- Natural Landscapers Ltd 501(c)(3) · Neenah, WI	$1.2M
Northwoods Land Trust Inc 501(c)(3) · Eagle River, WI	$1.2M
Riverview Gardens Inc 501(c)(3) · Appleton, WI	$1.2M
Milwaukee Riverkeeper Inc 501(c)(3) · Milwaukee, WI	$1.2M
Harbor District Inc 501(c)(3) · Milwaukee, WI	$1.1M
Trees For Tomorrow Inc 501(c)(3) · Eagle River, WI	$1.1M
Heckrodt Wetland Reserve Inc 501(c)(3) · Menasha, WI	$1.1M
Rooted Wi Inc 501(c)(3) · Madison, WI	$1.0M
Friends Of Pheasant Branch Conservancy Inc 501(c)(3) · Middleton, WI	$1.0M
Natural Resource Development Association Inc 501(c)(4) · Madison, WI	$950K
Sustain Dane Inc 501(c)(3) · Madison, WI	$946K
Clean Lakes Alliance Inc 501(c)(3) · Madison, WI	$939K
Wisconsin Waterfowl Association Inc 501(c)(3) · Wales, WI	$934K
Beloit Convention & Visitors Bureau Charitable Foundation Inc 501(c)(3) · Beloit, WI	$902K
Wpga Perc Inc 501(c)(3) · Poynette, WI	$902K
Mequon Nature Preserve Inc 501(c)(3) · Mequon, WI	$889K
Midwest Bikeshare Inc 501(c)(3) · Milwaukee, WI	$871K
Wisconsin Wetlands Association Inc 501(c)(3) · Madison, WI	$856K
Mississippi Valley Conservancy Inc 501(c)(3) · La Crosse, WI	$832K
Linda And Gene Farley Center For Peace Justice And Sustainability I 501(c)(3) · Verona, WI	$784K
Future Neenah Inc 501(c)(3) · Neenah, WI	$779K
CCouillard Solar Foundation Inc 501(c)(3) · Deerfield, WI	$699K
MMalcolm Stack Foundation Inc 501(c)(3) · Ridgeway, WI	$677K
North American Lake Management Society 501(c)(3) · Madison, WI	$676K
Friends Of Wehr Nature Center Inc 501(c)(3) · Franklin, WI	$675K
Norskedalen Nature And Heritage Center Inc 501(c)(3) · Coon Valley, WI	$654K
Yahara Pride Farms Inc 501(c)(3) · Waunakee, WI	$624K
Northeast Wisconsin Land Trust Inc 501(c)(3) · Appleton, WI	$619K
Wings Over Wisconsin Inc 501(c)(3) · Mayville, WI	$610K
Baird Creek Preservation Foundation Inc 501(c)(3) · Green Bay, WI	$598K
Wisconsin'S Green Fire Incorporated 501(c)(3) · Madison, WI	$578K
Groundwork Milwaukee Inc 501(c)(3) · Milwaukee, WI	$571K
Mandaamin Institute Inc 501(c)(3) · Elkhorn, WI	$560K
Navarino Nature Center Inc 501(c)(3) · Shiocton, WI	$534K
1000 Friends Of Wisconsin Inc 501(c)(3) · Stevens Point, WI	$533K
Root-Pike Watershed Initiative Network Inc 501(c)(3) · Kenosha, WI	$518K
Eco Justice Center Inc 501(c)(3) · Caledonia, WI	$517K
Wisconsin Tribal Conservation Advisory Council Inc 501(c)(3) · Oconto Falls, WI	$514K
Bradley-Sigma Phi Historical Landmark Preservation Fund Inc 501(c)(3) · Madison, WI	$513K
Glacial Lakes Conservancy Inc 501(c)(3) · Sheboygan, WI	$508K
Crossroads At Big Creek Inc 501(c)(3) · Sturgeon Bay, WI	$502K
Southeastern Wisconsin Watersheds Trust Inc 501(c)(3) · Milwaukee, WI	$499K
Forest Home Historic Preservation Association Inc 501(c)(3) · Milwaukee, WI	$484K
The River Alliance Of Wisconsin Inc 501(c)(3) · Madison, WI	$477K
Mississippi River Parkway Commission 501(c)(3) · Madison, WI	$475K
HHealthy Climate Wisconsin Inc 501(c)(3) · Madison, WI	$473K
SSouthern Wisconsin Land Conservancy Inc 501(c)(3) · Brodhead, WI	$465K
River Bend Nature Center Inc 501(c)(3) · Caledonia, WI	$446K

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