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Foundations in
Environment

Showing the top foundations primarily classified under environment. These grantmakers focus on supporting programs in this sector.

2,000
Foundations

Largest Environment Foundations

Top 50 by total assets

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#1

CLIMATE UNITED FUND

BETHESDA, MD
C20
Assets
$7.0B
Giving
-
#2

COALITION FOR GREEN CAPITAL D/B/A AMERICAN GREEN BANK CONSORTIUM

WASHINGTON, DC
C35
Assets
$5.0B
Giving
-
#3

HOLDFAST TRUST

JACKSON, WY
C01
Assets
$1.4B
Giving
-
#4

CATALYST4 INC

PALO ALTO, CA
C01
Assets
$1.1B
Giving
-
#5

THE CONSERVATION FUND A NONPROFIT CORPORATION

ARLINGTON, VA
C30
Assets
$942.8M
Giving
-
#6

WORLD WILDLIFE FUND INC

WASHINGTON, DC
C30
Assets
$777.3M
Giving
-
#7

CONSERVATION INTERNATIONAL FOUNDATION

ARLINGTON, VA
C30Z
Assets
$703.6M
Giving
-
#8

ISO NEW ENGLAND INC

HOLYOKE, MA
C35
Assets
$700.2M
Giving
-
#9

Puerto Rico Conservation Trust Fund

SAN JUAN, PR
C30
Assets
$663.9M
Giving
-
#10

RIVIAN FOUNDATION

IRVINE, CA
C34
Assets
$656.4M
Giving
-
#11

NEW VENTURE FUND

WASHINGTON, DC
C05
Assets
$624.9M
Giving
-
#12

NATIONAL AUDUBON SOCIETY INC

NEW YORK, NY
C30
Assets
$622.2M
Giving
-
#13

NATURAL RESOURCES DEFENSE COUNCIL INC

NEW YORK, NY
C30
Assets
$576.9M
Giving
-
#14

ENVIRONMENTAL DEFENSE FUND INCORPORATED

NEW YORK, NY
C60
Assets
$520.4M
Giving
-
#15

PECONIC LAND TRUST INC

SOUTHAMPTON, NY
C34
Assets
$455.0M
Giving
-
#16

WINDWARD FUND

WASHINGTON, DC
C30
Assets
$432.7M
Giving
-
#17

WEST MICHIGAN HORTICULTURAL SOCIETY INC DBA FREDERIK MEIJER GARDENS

GRAND RAPIDS, MI
C42
Assets
$424.5M
Giving
-
#18

Greenacres Foundation Inc

Cincinnati, OH
C32
Assets
$411.9M
Giving
-
#19

MASSACHUSETTS AUDUBON SOCIETY INC

LINCOLN, MA
C30
Assets
$402.0M
Giving
-
#20

THE TRUSTEES OF RESERVATIONS

BOSTON, MA
C34
Assets
$398.2M
Giving
-
#21

Breakthrough Energy Catalyst Foundation

KIRKLAND, WA
C35
Assets
$380.6M
Giving
-
#22

THE MORTON ARBORETUM

LISLE, IL
C41
Assets
$367.6M
Giving
-
#23

CHICAGO HORTICULTURAL SOCIETY

GLENCOE, IL
C41
Assets
$359.1M
Giving
-
#24

Natural Lands Trust Inc

Media, PA
C34
Assets
$342.5M
Giving
-
#25

PENINSULA OPEN SPACE TRUST

PALO ALTO, CA
C50
Assets
$339.3M
Giving
-
#26

The Scenic Hudson Land Trust Inc

Poughkeepsie, NY
C34
Assets
$332.7M
Giving
-
#27

CENTER FOR NATURAL LANDS MANAGEMENT

TEMECULA, CA
C34
Assets
$329.0M
Giving
-
#28

THE CHRISTENSEN FUND

SAN FRANCISCO, CA
C30
Assets
$327.1M
Giving
-
#29

THE TRUST FOR PUBLIC LAND

SAN FRANCISCO, CA
C50
Assets
$324.3M
Giving
-
#30

EARTHJUSTICE

SAN FRANCISCO, CA
C01
Assets
$315.7M
Giving
-
#31

Maine Coast Heritage Trust

Topsham, ME
C34
Assets
$312.2M
Giving
-
#32

United States Endowment for Forestry

Greenville, SC
C34
Assets
$292.5M
Giving
-
#33

KOHLER TRUST FOR CLEAN WATER

KOHLER, WI
C11
Assets
$285.8M
Giving
-
#34

THE ATLANTA BOTANICAL GARDEN INC

ATLANTA, GA
C41
Assets
$258.6M
Giving
-
#35

CATSKILL WATERSHED CORPORATION

ARKVILLE, NY
C32
Assets
$223.5M
Giving
-
#36

Appalachian Mountain Club

Boston, MA
C60
Assets
$221.0M
Giving
-
#37

Fondo Mexicano para la Conservacion de la Naturaleza AC

Mexico City,
C99Z
Assets
$220.7M
Giving
-
#38

TRIANGLE LAND CONSERVANCY INC

DURHAM, NC
C34
Assets
$219.4M
Giving
-
#39

SAVE THE REDWOODS LEAGUE

SAN FRANCISCO, CA
C36
Assets
$208.5M
Giving
-
#40

Casey Trees

Washington, DC
C12
Assets
$208.0M
Giving
-
#41

AMERICAN PRAIRIE FOUNDATION

BOZEMAN, MT
C34
Assets
$206.8M
Giving
-
#42

Wetlands America Trust Inc

Memphis, TN
C11
Assets
$201.0M
Giving
-
#43

FREDERIK MEIJER GARDENS & SCULPTURE FOUNDATION

GRAND RAPIDS, MI
C11
Assets
$188.3M
Giving
-
#44

ALLIANCE TO END PLASTIC WASTE INC

AUSTIN, TX
C01
Assets
$169.8M
Giving
-
#45

THE VOLGENAU FOUNDATION

MCLEAN, VA
C34Z
Assets
$166.2M
Giving
-
#46

THE NATURE CONSERVATION TRUST

ERASMUSRAND,
C20
Assets
$163.1M
Giving
$8.1M
#47

SUSTAINABLE ENERGY UTILITY INC

DOVER, DE
C35
Assets
$162.6M
Giving
$7.1M
#48

NAPA COUNTY LAND TRUST

NAPA, CA
C34
Assets
$158.0M
Giving
-
#49

AMERICAN FOREST FOUNDATION

WASHINGTON, DC
C36Z
Assets
$157.8M
Giving
-
#50

Little Traverse Conservancy Inc

Harbor Springs, MI
C34
Assets
$155.1M
Giving
-
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GrantLedger

Helping nonprofits find funding.

Grantwriting

  • Our service
  • How it works
  • FAQs
  • See if you’re eligible

Research & tools

  • The Ledger
  • Compensation Report
  • Search
  • Search pricing
  • Browse foundations
  • Browse by category

About

  • Our story
  • Past internship program
Contact

© 2026 LC Ventures Holdings LLC

Privacy PolicyTerms of Service