Environment Grants in Illinois

159 foundations fund environment programs in Illinois. See who they are, what they give, and how to reach them.

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These foundations have a track record of funding environment work in Illinois, based on IRS 990 grant data. Use the list below to find funders aligned with your mission, then sign up free to see how well your nonprofit fits each one.

Open Grant Opportunities

Live programs funding environment in Illinois that your nonprofit can apply to now.

Open nowCloses in 4 days (Jun 30, 2026)

HACF Annual Grant Program (General Grants)

From Highland Area Community Foundation

health and human servicesarts and cultureeducation+6 more

Who can apply: Grants are awarded for not-for-profit purposes to organizations or groups that provide community services within the Highland Community Unit School District, St. Jacob and Marine townships, and St. Rose Township. Specific criteria are listed on the grant application form.

Open nowCloses in 5 days (Jul 1, 2026)Award: Varies

Challenge Grant

From Research to Prevent Blindness Endowment Fund

Vision research infrastructureOphthalmology departmentsCapacity building

Who can apply: Department of Ophthalmology; intended for newly emerging eye research programs and recently appointed department chairs at non-grantee ophthalmology departments at university-connected medical schools.

Open nowCloses in 5 days (Jul 1, 2026)

Nature Conservancy & Wildlife Conservation Grants

From Arthur L Bud Johnson in Memory of Elaine V Johnson Foundation

nature conservancywildlife conservationland preservation+3 more

Who can apply: Applicant must be a charitable organization described in Section 501(c)(3) and 509(a)(1), 509(a)(2), or 509(a)(3). The foundation funds organizations that preserve, care for, and benefit wildlife and the world's natural resources. It gives highest priority to direct conservation and science-based conservation activities. Wildlife rehabilitation not focused on threatened or endangered species will not be funded, and organizations whose primary focus is advocacy or litigation are not funded.

Open nowCloses in 14 days (Jul 10, 2026)Award: $25K – $75K

Environment Initiative

From Roy A Hunt Foundation

climate and energytoxics and wasteclean water+4 more

Who can apply: Only organizations with 501(c)(3) status or a fiscal sponsor may submit inquiries. The committee does not consider capital projects, easements, local watersheds/conservancies/land trusts, direct legislative lobbying, or international NGOs.

Open nowRolling / open intakeAward: Varies

Environment Program

From Joyce Foundation

climate solutionsclean energy policycarbon-free electricity+5 more

Who can apply: Projects should advance the program's climate solutions or Great Lakes and drinking water priorities. New organizations are prioritized in some areas for organizations led by people of color; some topics are invitation only or very limited.

Open nowCloses Sep 4, 2026Award: Up to $25K

Community Impact Grant Program (Seed • Sustain • Strengthen)

From Dupage Community Foundation

health and human servicesyouth educationworkforce development+2 more

Who can apply: 501(c)(3) public charities that primarily serve DuPage County residents, or provide services in DuPage County, or have demonstrated DuPage-focused programming; seed grants available to organizations with 501(c)(3) status for less than three years with 1:1 match.

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Deadlines and program details come from public sources and can change. Always confirm on the funder's official site before applying.

Largest Environment in Illinois Foundations

NEW VENTURE FUND

WASHINGTON, DC

Annual Giving

$359.6M

Total Assets

$624.9M

Median Grant

$120K

C05National
SIXTEEN THIRTY FUND

WASHINGTON, DC

Annual Giving

$236.4M

Total Assets

$106.5M

Median Grant

$100K

C60National
THE TRUST FOR PUBLIC LAND

SAN FRANCISCO, CA

Annual Giving

$182M

Total Assets

$324.3M

Median Grant

$66K

C500National
Climate Imperative Foundation

San Francisco, CA

Annual Giving

$161.5M

Total Assets

$109.6M

Median Grant

$426K

C12National
WINDWARD FUND

WASHINGTON, DC

Annual Giving

$137.7M

Total Assets

$432.7M

Median Grant

$100K

C30National
SIERRA CLUB FOUNDATION

OAKLAND, CA

Annual Giving

$86.9M

Total Assets

$210.7M

Median Grant

$73K

C300National
NATIONAL PARK FOUNDATION

WASHINGTON, DC

Annual Giving

$81.9M

Total Assets

$560.6M

Median Grant

$50K

C12National
LEAGUE OF CONSERVATION VOTERS EDUCATION FUND

WASHINGTON, DC

Annual Giving

$54.8M

Total Assets

$37.2M

Median Grant

$45K

C013National
THE NATURE CONSERVANCY

ARLINGTON, VA

Annual Giving

$54.1M

Total Assets

$9.5B

Median Grant

$25K

C32National
THE CONSERVATION FUND A NONPROFIT CORPORATION

ARLINGTON, VA

Annual Giving

$52.4M

Total Assets

$919.4M

Median Grant

$20K

C300Regional
Breakthrough Energy Catalyst Foundation

KIRKLAND, WA

Annual Giving

$50M

Total Assets

$408.1M

Median Grant

$50M

C35Regional
RESOURCES LEGACY FUND

SACRAMENTO, CA

Annual Giving

$43.9M

Total Assets

$151.9M

Median Grant

$50K

C30Regional
Eagle Foundation

Omaha, NE

Annual Giving

$41.3M

Total Assets

$990.9M

Median Grant

$100K

C30National
MULTIPLIER

SAN FRANCISCO, CA

Annual Giving

$35.8M

Total Assets

$63.4M

Median Grant

$47K

C60National
THE MARISLA FOUNDATION

LAGUNA BEACH, CA

Annual Giving

$35.5M

Total Assets

$21.1M

Median Grant

$65K

C30National
ENERGY ACTION FUND

SAN FRANCISCO, CA

Annual Giving

$20M

Total Assets

$29.3M

Median Grant

$50K

C35National
NATIONAL ASSOCIATION OF CONSERVATION DISTRICTS

WASHINGTON, DC

Annual Giving

$17.7M

Total Assets

$7.3M

Median Grant

$40K

C030National
NATIONAL NETWORK OF ABORTION FUNDS INC

BEAVERTON, OR

Annual Giving

$16.3M

Total Assets

$67.8M

Median Grant

$59K

C99ZNational
THE RECYCLING PARTNERSHIP INC

WASHINGTON, DC

Annual Giving

$15.5M

Total Assets

$46.1M

Median Grant

$81K

C27National
CLEAN AND PROSPEROUS AMERICA

TUMWATER, WA

Annual Giving

$15M

Total Assets

$38K

Median Grant

$25K

C35National
ENVIRONMENTAL DEFENSE FUND INCORPORATED

NEW YORK, NY

Annual Giving

$14.1M

Total Assets

$391.7M

Median Grant

$30K

C600National
SUSTAINABLE ENERGY UTILITY INC

DOVER, DE

Annual Giving

$13.6M

Total Assets

$154M

Median Grant

$73K

C35Regional
REALTY GIFT FUND

SANTA FE, NM

Annual Giving

$13.6M

Total Assets

$13.1M

Median Grant

$27K

C34National
SUSTAINABLE MARKETS FOUNDATION

NEW YORK, NY

Annual Giving

$13.2M

Total Assets

$51.2M

Median Grant

$25K

C30National
PATAGONIAORG

VENTURA, CA

Annual Giving

$13.2M

Total Assets

Median Grant

$15K

C19National

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