Environment nonprofits in Illinois

660 environmental nonprofits in Illinois file a Form 990. Together they report $412 million in revenue and hold $1.8 billion in assets.

Browse all 279 environmental nonprofits in Illinois →

The largest are Chicago Horticultural Society, Elevate Energy, and The Morton Arboretum.

Environment in Illinois

Largest by revenue first.

Chicago Horticultural Society 501(c)(3) · Glencoe, IL	$68.1M
Elevate Energy 501(c)(3) · Chicago, IL	$60.9M
The Morton Arboretum 501(c)(3) · Lisle, IL	$57.8M
Water Quality Association 501(c)(6) · Lisle, IL	$15.7M
Urban Sustainability Directors Network 501(c)(3) · Chicago, IL	$11.3M
Environmental Law And Policy Center Of The Midwest 501(c)(3) · Chicago, IL	$10.9M
Lake Forest Open Lands Association 501(c)(3) · Mettawa, IL	$8.9M
Conservation Foundation 501(c)(3) · Naperville, IL	$7.5M
Midwest Energy Efficiency Alliance 501(c)(3) · Chicago, IL	$6.1M
Climate Vault Inc 501(c)(3) · Chicago, IL	$6.0M
Current Innovation Nfp 501(c)(3) · Chicago, IL	$5.9M
Center For Neighborhood Technology 501(c)(3) · Chicago, IL	$4.8M
Friends Of Wildlife Prairie Park 501(c)(3) · Hanna City, IL	$4.6M
RRockford Park District Foundation 501(c)(3) · Rockford, IL	$4.2M
Garfield Park Conservatory Alliance 501(c)(3) · Chicago, IL	$3.9M
Illinois Audubon Society 501(c)(3) · Springfield, IL	$3.8M
Council Of Great Lakes Governors Inc 501(c)(3) · Rolling Mdws, IL	$3.8M
Brushwood Center At Ryerson Woods 501(c)(3) · Riverwoods, IL	$3.7M
CCub Consumer Education And Research Fund 501(c)(3) · Chicago, IL	$3.7M
Bond Madison Water Company 501(c)(12) · Pocahontas, IL	$3.7M
Evergreen Climate Innovations 501(c)(3) · Chicago, IL	$3.7M
The Wetlands Initiative 501(c)(3) · Chicago, IL	$3.5M
Kindness Campaign 501(c)(3) · Chicago, IL	$3.4M
Passive House Institute Us Inc 501(c)(3) · Chicago, IL	$3.4M
Preservation Foundation Of The Lake County Forest Preserves 501(c)(3) · Libertyville, IL	$3.4M
Friends Of The Forest Preserves 501(c)(3) · Chicago, IL	$3.1M
Illinois Environmental Council Education Fund 501(c)(3) · Springfield, IL	$3.0M
Natural Land Institute 501(c)(3) · Rockford, IL	$2.9M
Jo Daviess Conservation Foundation Inc 501(c)(3) · Elizabeth, IL	$2.9M
GGreen Era Educational Nfp 501(c)(3) · Chicago, IL	$2.7M
Anderson Gardens 501(c)(3) · Rockford, IL	$2.7M
Living Lands & Waters 501(c)(3) · East Moline, IL	$2.5M
Healthy Schools Campaign 501(c)(3) · Chicago, IL	$2.4M
TThe Nature Conservation Trust 501(c)(3) · Erasmusrand, IL	$2.3M
The Dupage River Salt Creek Work Group 501(c)(4) · Naperville, IL	$2.3M
TThe Nells Foundation 501(c)(3) · Ottawa, IL	$2.2M
Youth Conservation Corps 501(c)(3) · Waukegan, IL	$2.1M
Heartlands Conservancy 501(c)(3) · Belleville, IL	$2.1M
BBlack Oaks Center For Sustainable Renewable Living Nfp 501(c)(3) · Chicago, IL	$2.1M
Illinois Park And Recreation Association 501(c)(3) · Hinsdale, IL	$2.0M
Quad City Botanical Center Foundation 501(c)(3) · Rock Island, IL	$1.9M
A Rocha Usa Inc A Rocha Usa 501(c)(3) · Wheaton, IL	$1.8M
Southeast Environmental Task Force 501(c)(3) · Chicago, IL	$1.7M
LLee A & Mary Jane Rieth Foundation For Environmental Education 501(c)(3) · Chicago, IL	$1.7M
Prairie Rivers Network 501(c)(3) · Champaign, IL	$1.6M
Food For Climate League Inc 501(c)(3) · Evanston, IL	$1.6M
Alliance For Water Efficiency Nfp 501(c)(3) · Chicago, IL	$1.5M
Saving Tomorrows Agriculture Resources 501(c)(3) · Champaign, IL	$1.5M
Abraham Lincoln Memorial Garden Foundation 501(c)(3) · Springfield, IL	$1.2M
The Gaia-Movement Living Earth Green World Action Usa Inc 501(c)(3) · Chicago, IL	$1.2M
Illinois Conservation Foundation 501(c)(3) · Springfield, IL	$1.2M
U S Green Building Council-Illinois Chapter 501(c)(3) · Chicago, IL	$1.1M
AA M Huntington Trust Fbo Brookgreen Gardens Pv 3584 501(c)(3) · Chicago, IL	$1.1M
Citizens For Conservation Inc 501(c)(3) · Barrington, IL	$1.1M
Clean Energy Jobs And Justice Fund 501(c)(3) · Chicago, IL	$1.0M
Friends Of Nachusa Grasslands 501(c)(3) · Franklin Grv, IL	$1.0M
Grand Prairie Friends 501(c)(3) · Urbana, IL	$977K
CClimate Jobs Illinois Education Fund 501(c)(3) · Springfield, IL	$975K
Urban Rivers Inc 501(c)(3) · Chicago, IL	$942K
Gratiot Lake Conservancy 501(c)(3) · Oak Brook, IL	$940K
SScarce 501(c)(3) · Wheaton, IL	$878K
Seven Generations Ahead 501(c)(3) · Oak Park, IL	$863K
Ecology Action Center 501(c)(3) · Normal, IL	$847K
Friends Of Illinois Nature Preserves 501(c)(3) · Dekalb, IL	$831K
Familyfarmed 501(c)(3) · Chicago, IL	$790K
Renewable Natural Resources Foundation 501(c)(3) · Schaumburg, IL	$788K
Neighbors For Environmental Justice Inc 501(c)(3) · Chicago, IL	$694K
Tree Fund-Tree Research & Education Endowment Fund 501(c)(3) · Naperville, IL	$687K
Big Medicine Nfp 501(c)(3) · Chicago, IL	$677K
Central States Water Pollution Control Association Inc 501(c)(3) · Crystal Lake, IL	$622K
BBent Of The River Sanctuary Trust Xxxxx0003 501(c)(3) · Chicago, IL	$617K
Prairie Hills Resource Conservation And Development Inc 501(c)(3) · Macomb, IL	$614K
Friends Of The Shawnee National Forest 501(c)(3) · Carbondale, IL	$609K
Evolve Foundation 501(c)(3) · Chicago, IL	$594K
Klehm Arboretum And Botanic Garden Inc 501(c)(3) · Rockford, IL	$583K
Great Rivers Land Preservation Association Inc 501(c)(3) · Alton, IL	$539K
Forest Preserve Foundation Inc 501(c)(3) · Chicago, IL	$521K
Degrowth Institute 501(c)(3) · Chicago, IL	$519K
Friends Of The Forest Preserve District Of Dupage County 501(c)(3) · Wheaton, IL	$518K
Esta Barrett Manor And Gardens Inc 501(c)(3) · Rockford, IL	$498K
Expeditions In Education Inc 501(c)(3) · Chicago, IL	$443K
Lake Katherine Nature Center And Botanic Gardens 501(c)(3) · Palos Heights, IL	$424K
Chicago Gateway Green Committee 501(c)(3) · Chicago, IL	$417K
Keep Northern Illinois Beautiful Inc 501(c)(3) · Rockford, IL	$412K
Cofan Survival Fund Inc 501(c)(3) · Oak Park, IL	$397K
Lake Forest Garden Club 501(c)(3) · Lake Forest, IL	$366K
Environmental Law And Policy Center Action Fund 501(c)(4) · Chicago, IL	$366K
Pilsen Environmental Rights And Reform Organization 501(c)(3) · Chicago, IL	$363K
Mchenry County Conservation Foundation 501(c)(3) · Ringwood, IL	$363K
Homewood Izaak Walton Preserve Inc 501(c)(3) · Homewood, IL	$361K
PPacific Environmental Coalition 501(c)(4) · Chicago, IL	$339K
Our World Underwater Scholarship Society 501(c)(3) · Woodridge, IL	$329K
Faith In Place Action Fund 501(c)(4) · Chicago, IL	$326K
Thorium Energy Alliance 501(c)(3) · Harvard, IL	$324K
Champaign County Environmental Stewards 501(c)(3) · Champaign, IL	$313K
The Idea Store And Creative Reuse Center 501(c)(3) · Urbana, IL	$308K
One Earth Collective 501(c)(3) · Chicago, IL	$299K
Friends Of The Highwood Public Library 501(c)(3) · Highwood, IL	$297K
Earth Rangers Usa Foundation 501(c)(3) · Chicago, IL	$297K
Lower Dupage River Watershed Coalition 501(c)(3) · Naperville, IL	$296K

Environment by metro area