The Woodtiger Fund concentrates its philanthropy on environmental conservation with a mix of local, watershed-focused civic support and international species protection. Its largest commitments fund municipal conservation-compatible infrastructure and long-term advocacy for the Delaware River watershed, while also underwriting targeted primate conservation projects in Africa. The foundation gives very large, infrequent grants to a small set of recipients rather than many small awards.
The Woodtiger Fund repeatedly backs conservation work that is both place-based and species-specific: a $2.54 million grant to Tinicum Township for bridge consultant services stands out alongside recurring support for the Delaware Riverkeeper Network and overseas wildlife projects. The foundation’s recent giving shows a preference for large awards to a limited set of recipients, with grants that can support local conservation-compatible infrastructure, watershed advocacy, and targeted species protection in Africa. In the environmental portfolio, the fund has supported the Delaware Riverkeeper Network across multiple years, including general support grants of $500,000 in 2024 and $350,000 in 2025. It has also funded Wild Earth Allies for the Grauer’s gorilla project and blue monkey project, and Wildlife Guardians for the Niassa lion project and land purchase. Other grants point to a broader wildlife-conservation pattern that includes pangolins, elephants, wolves, rhinos, and vaquitas. The result is a grantmaking profile that combines civic infrastructure, advocacy, and field conservation rather than a single-issue or single-region strategy.
The Woodtiger Fund’s environmental support cuts across watershed advocacy, municipal conservation planning, and wildlife protection. In river-focused work, the fund gave $500,000 to Delaware Riverkeeper Network for general support in 2024 and $350,000 in 2025, indicating sustained backing for Delaware River watershed advocacy. It also supports local land-use and infrastructure work: Tinicum Township received $2.54 million in 2025 for bridge consultant services. On the wildlife side, Wild Earth Allies received $339,000 in 2024 for the Grauer’s gorilla project and blue monkey project, while Wildlife Guardians received $306,000 in 2024 for the Niassa lion project and land purchase. The portfolio extends into species campaigns through grants such as $125,000 to Endangered Species Coalition for the Stand for Wolves campaign.
Typical grants cluster around a mid-five-figure to low-six-figure range, with p25 at $15,000, median at $40,000, and p75 at $75,000. The Woodtiger Fund does make larger awards, but the distribution shows that many grants sit below $100,000 while a smaller number reach the hundreds of thousands or higher. Recipients appear across multiple years, including Delaware Riverkeeper Network, Wildlife Guardians, Wild Earth Allies, Save the Rhino International, Endangered Species Coalition, and Wildlife Conservation Society. The foundation also funds individuals, and its recent grant list shows a mix of operating support, project support, and named program support rather than one uniform grant type.
$5.2M
$84.6M
$7.6M
$5.9M
Most grants fall between $15K and $75K, with a median of $40K.
25th Percentile
$15K
Median
$40K
75th Percentile
$75K
Top 2 recipient countries by grant volume for Woodtiger Fund.
| Rank | Country | Grants | Total | Share |
|---|---|---|---|---|
| 1 | United StatesDomestic | 146 | $12.1M | 97.3% |
| 2 | United Kingdom | 4 |
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Highly concentrated giving: five large grants totaling roughly $4M, repeat multi-year support to Delaware Riverkeeper Network, and single substantial awards to a local township and to international primate conservation. Prefers sizable, mission-focused grants to a small number of organizations rather than broad, small-scale grantmaking.
Notable grantees: Tinicum Township, Delaware Riverkeeper Network, Wild Earth Allies
The Woodtiger Fund gives nationally, with 98% of grants going to U.S. recipients and 2% to the UK. Pennsylvania is the top state by grant count, though the largest recent award went to Tinicum Township in Pipersville, PA. Other frequent recipient locations include Bristol, PA; Washington, DC; Chevy Chase, MD; Bronx, NY; San Rafael, CA; and New York, NY. The UK presence appears in the recipient country distribution, but the grant list is overwhelmingly U.S.-based.
Its recent grants center on environmental conservation: Delaware River watershed advocacy, municipal conservation planning in Pennsylvania, and wildlife protection projects involving gorillas, blue monkeys, lions, pangolins, elephants, wolves, rhinos, and vaquitas.
The foundation’s grant-size distribution is $15,000 at the 25th percentile, $40,000 at the median, and $75,000 at the 75th percentile. Recent grants also show several six-figure awards and a much larger $2.54 million grant.
Yes. Delaware Riverkeeper Network appears in 2023, 2024, and 2025; Wildlife Guardians appears in 2023, 2024, and 2025; Wild Earth Allies appears in 2024 and 2025; and Endangered Species Coalition appears in 2023, 2024, and 2025.
Pennsylvania is the top state by grant count, and 20% of grants go to recipients in Pennsylvania. Other recipient locations in the recent list include Bristol, Pipersville, Washington, Chevy Chase, Bronx, San Rafael, and New York City.
Yes. The fund is marked as funding individuals, and its recent grant pattern also includes scholarships within a bundled grant to Undercurrent Inc for the Namibia Scholarship Project.
2025
Source: IRS Form 990-PF, fiscal year 2025.
| $49K |
2.7% |
Recipient country reflects the grantee's headquarters per IRS 990-PF and Schedule F filings, not the program's implementation country.
Most recent grants reported to the IRS.
| Recipient | Location | Amount | Year | Purpose |
|---|---|---|---|---|
| TINICUM TOWNSHIP | PIPERSVILLE, PA | $2,540,000 | 2025 | BRIDGE CONSULTANT SERVICES |
| DELAWARE RIVERKEEPER NETWORK | BRISTOL, PA | $350,000 | 2025 | GENERAL SUPPORT |
| WILDLIFE GUARDIANS | WASHINGTON, DC | $250,000 | 2025 | GENERAL SUPPORT |
| NATIONAL CAUCUS OF ENVIRONMENTAL LEGISLATORS | WASHINGTON, DC | $235,000 | 2025 | CONSERVATION PROJECT - $80,000GREEN AMENDMENT - $75,000LAW & CONSERVATION - $80,000WILDLIFE AND WILDLANDS PROJECT - $80,000 |
| WILD EARTH ALLIES | CHEVY CHASE, MD | $225,000 | 2025 | GRAUER'S GORILLA PROJECT - $200,000BLUE MONKEY PROJECT |
| WILDLIFE CONSERVATION SOCIETY | BRONX, NY | $222,000 | 2025 | YANKARI WILDLIFE RESERVE IN ANGOLA |
| WILDLIFE GUARDIANS | WASHINGTON, DC | $156,000 | 2025 | NIASSA LION PROJECT - $56,000LAND PURCHASE |
| CENTER FOR BIOLOGICAL DIVERSITY | TUCSON, AZ | $150,000 | 2025 | GENERAL SUPPORT |
| ENDANGERED SPECIES COALITION | WASHINGTON, DC | $125,000 | 2025 | STAND FOR WOLVES CAMPAIGN |
| SAVE THE RHINO INTERNATIONAL | NEW YORK, NY | $115,000 | 2025 | HLUHLUWE-IMFOLOZI PARK K9 UNIT - $37,000PROJECT BLOOD ORANGE - $75,000 |
| GREEN CORPS | DENVER, CO | $60,000 | 2025 | GENERAL SUPPORT |
| ELEPHANTS WITHOUT BORDERS | BUFFALO, NY | $60,000 | 2025 | HOPE FOR ELEPHANTS - $60,000GREAT ELEPHANT CORRIDOR - $40,000 |
| INTERNATIONAL WILDLIFE COEXISTENCE NETWORK | BOISE, ID | $50,000 | 2025 | GENERAL SUPPORT |
| MERCY FOR ANIMALS | LOS ANGELES, CA | $50,000 | 2025 | GENERAL SUPPORT |
| INTERNATIONAL RHINO FOUNDATION | FT WORTH, TX | $50,000 | 2025 | ANTI-POACHING OPERATIONS IN KRUGER NATIONAL PARK |
| NORTHEAST WILDERNESS TRUST | MONTPELIER, VT | $50,000 | 2025 | GENERAL SUPPORT |
| WILDLANDS NETWORK | SEATTLE, WA | $50,000 | 2025 | ORGANIZER/COORDINATOR EASTERN COUGER RESTORATION |
| INTERNATIONAL WILDLIFE COEXISTENCE NETWORK | BOISE, ID | $48,540 | 2025 | WOLF INITIATIVE - $28,850BLACKBAUD - $6,270 |
| SMITHSONIAN INSTITUTION | WASHINGTON, DC | $45,000 | 2025 | AMPHIBIAN CONSERVATION |
| ECO BUCKS INC | PIPERSVILLE, PA | $40,000 | 2025 | GENERAL SUPPORT |
| PASO PACIFICO | VENTURA, CA | $40,000 | 2025 | GENERAL SUPPORT |
| TINICUM CONSERVANCY | UPPER BLACK EDDY, PA | $30,000 | 2025 | TECHNICAL SUPPORT FOR EASEMENTS |
| FRANKFURT ZOOLOGICAL SOCIETY US INC | WASHINGTON, DC | $25,000 | 2025 | BONOBO RESEARCH IN LOMAMI NP, DRC |
| BORDERLANDS RESTORATION NETWORK | PATAGONIA, AZ | $25,000 | 2025 | GENERAL SUPPORT |
| AMERICAN RIVERS | WASHINGTON, DC | $25,000 | 2025 | GENERAL SUPPORT |
| SNOW LEOPARD CONSERVANCY | SONOMA, CA | $20,000 | 2025 | LIGHTS FOR LIFE |
| PROTECT OUR WILDLIFE VERMONT | STOWE, VT | $20,000 | 2025 | GENERAL FUND |
| CLEAN AIR COUNCIL | PHILADELPHIA, PA | $20,000 | 2025 | GENERAL SUPPORT |
| ESF COLLEGE FOUNDATION INC | SYRACUSE, NY | $20,000 | 2025 | AMERICAN CHESTNUT TREES |
| DEE VALLEY ENVIRONMENTAL NETWORK | BALA IN GWYNEDD, WA | $18,000 | 2025 | GENERAL SUPPORT |
| EARTH ISLAND INSTITUTE | BERKELEY, CA | $15,000 | 2025 | PROJECT COYOTE |
| PHILLY NEIGHBORHOOD NETWORKS JUSTICE FUND | PHILADELPHIA, PA | $15,000 | 2025 | GENERAL SUPPORT |
| OLD GROWTH FOREST NETWORK | EASTON, MD | $15,000 | 2025 | GENERAL SUPPORT |
| PROJECT ANIMAL AID | BOULDER, CO | $10,000 | 2025 | GENERAL SUPPORT |
| CITIZENS FOR RESPONSIBLE DEVELOPMENT | BETHLEHEM, PA | $5,000 | 2025 | GENERAL SUPPORT |
| UNIVERSITY OF NEW MEXICO FOUNDATION | ALBUQUERQUE, NM | $5,000 | 2025 | WILD FRIENDS PROGRAM |
| LAST CHANCE RANCH | QUAKERTOWN, PA | $5,000 | 2025 | GENERAL SUPPORT |
| UNIVERSITY OF MINNESOTA | MINNEAPOLIS, MN | $5,000 | 2025 | VOYAGEURS WOLF PROJECT |
| UPPER BUCKS REGIONAL EMS INC | REVERE, PA | $5,000 | 2025 | GENERAL SUPPORT |
| POCONO WILDLIFE REHABILITATION CENTER | STROUDSBURG, PA | $2,000 | 2025 | GENERAL SUPPORT |
| WINDHAM COUNTY HUMANE SOCIETY | BRATTLEBORO, VT | $2,000 | 2025 | GENERAL SUPPORT |
| ENVIRONMENTAL EDUCATION & CONSERVATION GLOBAL | COUDERSPORT, PA | $1,500 | 2025 | PRESTON MUTINDA FOUNDATION |
| DELAWARE RIVERKEEPER NETWORK | BRISTOL, PA | $500,000 | 2024 | GENERAL SUPPORT |
| WILD EARTH ALLIES | CHEVY CHASE, MD | $339,000 | 2024 | GRAUER'S GORILLA PROJECT - $200,000BLUE MONKEY PROJECT - $139,000 |
| NATIONAL CAUCUS OF ENVIRONMENTAL LEGISLATORS | WASHINGTON, DC | $315,000 | 2024 | CONSERVATION PROJECT - $80,000GREEN AMENDMENT - $75,000LAW & CONSERVATION - $80,000WILDLIFE AND WILDLANDS PROJECT - $80,000 |
| WILDLIFE GUARDIANS | WASHINGTON, DC | $306,000 | 2024 | NIASSA LION PROJECT - $56,000LAND PURCHASE - $250,000 |
| MAYO CLINIC | ROCHESTER, MN | $300,000 | 2024 | PRECISION CANCER THERAPEUTICS PROGRAM |
| WILDLIFE GUARDIANS | WASHINGTON, DC | $250,000 | 2024 | GENERAL SUPPORT |
| UNDERCURRENT INC | SAN RAFAEL, CA | $181,000 | 2024 | LILOGWE WILDLIFE TRUST - PANGOLINS IN MALAWI - $41,000NAMIBIA SCHOLARSHIP PROJECT - $30,000TIKKI HYWOOD TRUST - $110,000 |
| ENDANGERED SPECIES COALITION | WASHINGTON, DC | $125,000 | 2024 | STAND FOR WOLVES CAMPAIGN |
TINICUM TOWNSHIP
$2,540,000BRIDGE CONSULTANT SERVICES
WILDLIFE GUARDIANS
$250,000GENERAL SUPPORT
CONSERVATION PROJECT - $80,000GREEN AMENDMENT - $75,000LAW & CONSERVATION - $80,000WILDLIFE AND WILDLANDS PROJECT - $80,000
YANKARI WILDLIFE RESERVE IN ANGOLA
HLUHLUWE-IMFOLOZI PARK K9 UNIT - $37,000PROJECT BLOOD ORANGE - $75,000
GREEN CORPS
$60,000GENERAL SUPPORT
ELEPHANTS WITHOUT BORDERS
$60,000HOPE FOR ELEPHANTS - $60,000GREAT ELEPHANT CORRIDOR - $40,000
INTERNATIONAL WILDLIFE COEXISTENCE NETWORK
$50,000GENERAL SUPPORT
INTERNATIONAL RHINO FOUNDATION
$50,000ANTI-POACHING OPERATIONS IN KRUGER NATIONAL PARK
INTERNATIONAL WILDLIFE COEXISTENCE NETWORK
$48,540WOLF INITIATIVE - $28,850BLACKBAUD - $6,270
ECO BUCKS INC
$40,000GENERAL SUPPORT
PASO PACIFICO
$40,000GENERAL SUPPORT
TINICUM CONSERVANCY
$30,000TECHNICAL SUPPORT FOR EASEMENTS
SNOW LEOPARD CONSERVANCY
$20,000LIGHTS FOR LIFE
PROTECT OUR WILDLIFE VERMONT
$20,000GENERAL FUND
DEE VALLEY ENVIRONMENTAL NETWORK
$18,000GENERAL SUPPORT
PHILLY NEIGHBORHOOD NETWORKS JUSTICE FUND
$15,000GENERAL SUPPORT
OLD GROWTH FOREST NETWORK
$15,000GENERAL SUPPORT
PROJECT ANIMAL AID
$10,000GENERAL SUPPORT
CITIZENS FOR RESPONSIBLE DEVELOPMENT
$5,000GENERAL SUPPORT
LAST CHANCE RANCH
$5,000GENERAL SUPPORT
UNIVERSITY OF MINNESOTA
$5,000VOYAGEURS WOLF PROJECT
UPPER BUCKS REGIONAL EMS INC
$5,000GENERAL SUPPORT
POCONO WILDLIFE REHABILITATION CENTER
$2,000GENERAL SUPPORT
WINDHAM COUNTY HUMANE SOCIETY
$2,000GENERAL SUPPORT
ENVIRONMENTAL EDUCATION & CONSERVATION GLOBAL
$1,500PRESTON MUTINDA FOUNDATION
GRAUER'S GORILLA PROJECT - $200,000BLUE MONKEY PROJECT - $139,000
CONSERVATION PROJECT - $80,000GREEN AMENDMENT - $75,000LAW & CONSERVATION - $80,000WILDLIFE AND WILDLANDS PROJECT - $80,000
MAYO CLINIC
$300,000PRECISION CANCER THERAPEUTICS PROGRAM
UNDERCURRENT INC
$181,000LILOGWE WILDLIFE TRUST - PANGOLINS IN MALAWI - $41,000NAMIBIA SCHOLARSHIP PROJECT - $30,000TIKKI HYWOOD TRUST - $110,000