Illinois Environmental Organizations
Working to protect the Great Lakes for today and tomorrow
Barrington Area Conservation Trust
Preserving our community’s rare and exceptional open spaces for current and future generations.
Center for Neighborhood Technology
Sustainable Communities, Attainable Results
Champaign County Audubon Society
A local chapter of the Audubon Society
Birds. Wildlife. Habitat.
Chicagoland Environmental Network
Where Green Things Happen
Chicago Ornithological Society
Providing friendly and fun opportunities for birders to enjoy
Seeing the Parks through the eyes of the Community.
Dedicated to protecting nature and enriching life
Dedicated to the preservation and restoration of the natural environment that once covered northeastern Illinois.
Protecting Our Bluffs in Monroe, Randolph, and St. Clair Counties.
Working to make Evanston a more environmentally just, sustainable, and resilient community.
Preserving and restoring natural areas and open space
A chapter of the National Audubon Society
Birding with a Purpose
Inspiring and assisting residents of McLean County, Illinois in creating, strengthening and preserving a healthy environment.
Environmental Defenders of McHenry County
Citizens working for a healthy environment
Environmental Education Association of Illinois
Supporting and advancing quality environmental education
Environmental Law & Policy Center
Protecting the Midwest's Environment and Natural Heritage
Evanston Environmental Assocation
Environment. Education. Awareness.
Evanston North Shore Bird Club
Devoted to birding and protecting local natural resources
Making the Chicago River one of the world's greatest metropolitan rivers.
Friends of the Forest Preserves
Protecting, restoring, and promoting the forest preserves of Cook County
Taking action to protect and maintain the quality of the Fox River and its tributaries.
Friends of Illinois Nature Preserves
Dedicated to the Conservation and Care of Illinois Nature Preserves
Inspires, equips, and mobilizes a diverse Chicago to ensure an equitable park system for a healthy Chicago.
Preserving and restoring natural communities in east-central Illinois
Restoring nature. Building community.
Investing in the Nature of Southwestern Illinois.
Helping preserve Illinois flora and fauna since 1897
Illinois Butterfly Monitoring Network
Engaging citizen scientists in the process of collecting quantitative data on butterfly populations
Illinois Dunesland Preservation Society
Protecting the Nation's First State Dedicated Nature Preserve.
Illinois Environmental Council
Serving as the environmental community’s eyes, ears and voice in Springfield
Dedicated to the study, appreciation, and conservation of the native flora and natural communities of Illinois
A 25 acre wildlife rehabilitation and conservation education facility
Illinois Solar Energy Association
Promoting the widespread application of solar and other forms of renewable energy
Jo Daviess Conservation Foundation
Join us in protecting the special landscape of northwest Illinois
Formerly JWP Audubon, based in Normal
Lake Bluff Open Lands Association
Preservation, restoration, and education since 1981
Lake Forest Open Lands Association
Devoted to the acquisition and stewardship of our natural landscapes, and to ensuring all generations have a meaningful, lasting connection to nature and our land.
Land Conservancy of Lake County
Preserving, conserving, and managing open lands, natural areas, and ecosystems
Land Conservancy of McHenry County
Preserving the natural beauty of McHenry County since 1991
Education, conservation and restoration of natural ecosystems
Promoting the integration of healthy ecosystems and the vibrant human communities
Little Village Environmental Justice Organization
Leadership Development for the Sustainable Self Determination of Little Village.
A Vermillion County Chapter of the Illinois Audubon Society.
Conserving land in northern Illinois
Nature Conservancy of Illinois
Preserving the Prairie State
Northwest Illinois Audubon Society
Dedicated to the cause of good stewardship of planet Earth
Conserving nature for life
A chapter of the National Audubon Society
Pierce Downer's Heritage Alliance
Preserving our Natural and Cultural Heritage
Restoring natural communities in northwest Cook County, Illinois
Committed to the protection and management of native prairie and savanna of the Upper Midwest
Illinois advocate for clean water and healthy rivers
Dedicated to promoting the ecological and cultural significance of the American prairie
Prairie State Conservation Coalition
An Illinois Association of Conservation Land Trusts.
Like every drop of rain - Our every action counts
Saving natural areas and wildlife habitat
Encompasses the entire state of Illinois and a small portion of Iowa around the Quad Cities
Southeast Environmental Taskforce
Dedicated to serving the southeast side and south suburbs of Chicago by promoting environmental education, pollution prevention, and sustainable development
Southern Illinois Audubon Society
An affiliate of the Illinois Audubon Society, headquartered in Danville.
A chapter of the National Audubon Society, based in Park Forest
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