Environment Grants in Delaware

52 foundations fund environment programs in Delaware. 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 Delaware, 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 Delaware that your nonprofit can apply to now.

Open nowCloses in 2 days (Aug 14, 2026)

Highmark BluePrints for the Community - Large

From Delaware Community Foundation

healthcare accesseconomic stabilitysocial and community context+2 more

Who can apply: Applicant must be a nonprofit organization submitting a health-related project or service that aligns with one of the five focus areas and aims to increase access to care and/or reduce health disparities.

Open nowRolling / open intake

Colcom Foundation Grantmaking Program

From Colcom Foundation

carrying capacitylocal environmentlocal community+1 more

Who can apply: If a project has not been previously funded by Colcom Foundation, submit a Letter of Inquiry (LOI). LOIs are accepted on a rolling basis. If approved, the applicant is invited to submit a full Grant Application.

Open nowCloses in 20 days (Sep 1, 2026)Award: $5K – $15K

Safe Arborist Techniques Fund Grant Program

From Tree Research and Education Endowment Fund

arborist safetyworker safetytree care industry+1 more

Who can apply: Applicants must propose original research that improves safety for tree care workers and the public.

Open nowCloses in 27 days (Sep 8, 2026)Award: Varies

2026 Community Grants (General, Mini, New Program)

From Sourcepoint

Aging in PlaceCaregiver SupportCommunity-Built Environment+4 more

Who can apply: Local nonprofit and government agencies serving Delaware County’s growing older adult population age 55 and older. Programs should address service gaps and avoid duplicating existing services.

Open nowCloses in 27 days (Sep 8, 2026)Award: Up to $10K

2026 New Program Mini Grant (New Applicants, requests less than $10,000)

From Sourcepoint

Aging in PlaceCaregiver SupportCommunity-Built Environment+4 more

Who can apply: New applicants only; requests less than $10,000.

Open nowCloses Sep 15, 2026

Sustainable Environments Grants

From Cyrus Eaton Foundation

ConservationClimate change solutionsSustainability+3 more

Who can apply: Organizations must be 501(c)(3) nonprofits. Applicants may apply once per year; organizations receiving a grant must wait until the same cycle the following year. Required submission of a Required Information Sheet (RIS) including executive summary (up to 2 pages), 501(c)(3) determination, board and budget information, and optional supporting materials. Prior-year grantees must submit a Final Evaluation Form.

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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 Delaware 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
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
NATIONAL PARK FOUNDATION

WASHINGTON, DC

Annual Giving

$81.9M

Total Assets

$560.6M

Median Grant

$50K

C12National
THE NATURE CONSERVANCY

ARLINGTON, VA

Annual Giving

$67.8M

Total Assets

$10.1B

Median Grant

$25K

C32National
THE CONSERVATION FUND A NONPROFIT CORPORATION

ARLINGTON, VA

Annual Giving

$52.4M

Total Assets

$919.4M

Median Grant

$20K

C300Regional
CATALYST4 INC

PALO ALTO, CA

Annual Giving

$43M

Total Assets

$1.1B

Median Grant

$4M

C01Regional
CHESAPEAKE BAY TRUST

ANNAPOLIS, MD

Annual Giving

$21.5M

Total Assets

$52.2M

Median Grant

$18.7M

C30Regional
ENERGY ACTION FUND

SAN FRANCISCO, CA

Annual Giving

$20M

Total Assets

$29.3M

Median Grant

$50K

C35National
NATIONAL NETWORK OF ABORTION FUNDS INC

BEAVERTON, OR

Annual Giving

$18.3M

Total Assets

$44.8M

Median Grant

$59K

C99ZNational
NATIONAL ASSOCIATION OF CONSERVATION DISTRICTS

WASHINGTON, DC

Annual Giving

$17.7M

Total Assets

$7.3M

Median Grant

$40K

C030National
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
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
DEPLOYUS INC

BOSTON, MA

Annual Giving

$12.3M

Total Assets

$5.3M

Median Grant

$105K

C35National
AMERICAN RIVERS INC

WASHINGTON, DC

Annual Giving

$11.6M

Total Assets

$40.1M

Median Grant

$21K

C013National
NATIONAL ARBOR DAY FOUNDATION

LINCOLN, NE

Annual Giving

$11.6M

Total Assets

$136.3M

Median Grant

$38K

C500National
NATIONAL AUDUBON SOCIETY INC

NEW YORK, NY

Annual Giving

$7.5M

Total Assets

$641.3M

Median Grant

$12K

C300National
SOCIAL & ENVIRONMENTAL ENTREPRENEURS (SEE) INC

CALABASAS, CA

Annual Giving

$6.9M

Total Assets

$103.2M

Median Grant

$43K

C05National
Climate Justice Alliance

Berkeley, CA

Annual Giving

$5.8M

Total Assets

$4.1M

Median Grant

$40K

C99National
SUSTAINABLE ENERGY UTILITY INC

DOVER, DE

Annual Giving

$5.7M

Total Assets

$162.6M

Median Grant

$73K

C35Regional
NATIONAL MARINE SANCTUARY FOUNDATION

SILVER SPRING, MD

Annual Giving

$5.6M

Total Assets

$15.5M

Median Grant

$26K

C113National
NATURAL RESOURCES DEFENSE COUNCIL INC

NEW YORK, NY

Annual Giving

$5.3M

Total Assets

$657.2M

Median Grant

$20K

C300National

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