Funding search · EIN 510245279 · Princeton, NJ

Tortuga Charitable Foundation

A private foundation (files IRS Form 990-PF). Most private foundations do not take unsolicited applications; the route in is usually a program officer.

440
grants reported
$31.8M
total given
2022–2025
filing years
$75,000
median grant

Based on grants this organization reported to the IRS for tax years 20222025. This is what they filed, not a complete record of their giving, and recent years may be incomplete because filings lag.

What they fund

accountabilityjustlandsprotectpublicresearchtransitionwyoming

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Funding pattern

What this funder pays for, at what size, and how to position adjacent work. Read from their filings, with every number checked against the record.

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Top recipients

Repeat recipients are the strongest signal of whether a funder has an open door or quietly re-funds the same organizations.

  • The Nature Conservancy2 grants · $730,000
  • Rockefeller Family Fund2 grants · $600,000
  • Nature Conservancy5 grants · $445,000
  • Environmental Integrity Project2 grants · $410,000
  • Environmental Integrity Project2 grants · $400,000
  • Bennington College2 grants · $375,000
  • Mount Grace Land Conservation Trust2 grants · $360,000
  • Rockefeller Family Fund2 grants · $325,000
  • Bennington College Corporation2 grants · $315,000
  • Louisianna Bucket Brigade2 grants · $300,000

Giving over time

$7.6M
2022
$7.8M
2023
$8.0M
2024
$8.4M
2025

Grant history

The 100 largest of 440 grants.

  • $370,000

    The Nature Conservancy · Arlington, VA · 2023

    General charitable purposes

  • $360,000

    The Nature Conservancy · Arlington, VA · 2022

    General charitable purposes

  • $300,000

    Rockefeller Family Fund · New York, NY · 2025

    Charitable

  • $300,000

    Rockefeller Family Fund · New York, NY · 2024

    Charitable

  • $250,000

    Voter Registration Project · Washington, DC · 2024

    Charitable

  • $250,000

    Rockefeller Family Fund · New York, NY · 2023

    General charitable purposes

  • $225,000

    Bennington College · Bennington, VT · 2022

    General charitable purposes

  • $225,000

    New Venture Fund · Washington, DC · 2022

    General charitable purposes

  • $211,500

    Craig Hospital · Englewood, CO · 2022

    General charitable purposes

  • $210,000

    Environmental Integrity Project · Washington, DC · 2022

    General charitable purposes

  • $200,000

    Environmental Integrity Project · Washington, DC · 2025

    Charitable

  • $200,000

    Resources Legacy Fund · Sacramento, CA · 2025

    Charitable

  • $200,000

    Environmental Integrity Project · Washington, DC · 2024

    Charitable

  • $200,000

    Environmental Integrity Project · Washington, DC · 2023

    General charitable purposes

  • $200,000

    New York Public Interest Research · New York, NY · 2023

    General charitable purposes

  • $195,000

    Mount Grace Land Conservation Trust · Athol, MA · 2023

    General charitable purposes

  • $175,000

    Spiral House Park · Saugerties, NY · 2025

    Charitable

  • $165,000

    Bennington College Corporation · Bennington, VT · 2025

    Charitable

  • $165,000

    Nature Conservancy · New Haven, CT · 2025

    Charitable

  • $165,000

    Mount Grace Land Conservation Trust · Athol, MA · 2022

    General charitable purposes

  • $160,000

    Nature Conservancy · Arlington, VA · 2024

    Charitable

  • $150,000

    Planned Parenthood Federation of Am · New York, NY · 2025

    Charitable

  • $150,000

    Bennington College Corporation · Bennington, VT · 2024

    Charitable

  • $150,000

    Climate and Clean Energy Equity Fun · Washington, DC · 2024

    Charitable

  • $150,000

    Planned Parenthood Federation of Am · New York, NY · 2024

    Charitable

  • $150,000

    Bennington College · Bennington, VT · 2023

    General charitable purposes

  • $150,000

    Climate and Clean Energy Equity Fund · Washington, DC · 2023

    General charitable purposes

  • $150,000

    Ecdysis Foundation · Estelline, SD · 2023

    General charitable purposes

  • $150,000

    Louisianna Bucket Brigade · New Orleans, LA · 2023

    General charitable purposes

  • $150,000

    Planned Parenthood Federation of America · Washington, DC · 2023

    General charitable purposes

  • $150,000

    Ct Audubon Society · Fairfield, CT · 2022

    General charitable purposes

  • $150,000

    Louisianna Bucket Brigade · New Orleans, LA · 2022

    General charitable purposes

  • $150,000

    Planned Parenthood Federation of America · Washington, DC · 2022

    General charitable purposes

  • $135,000

    Southern Environmental Law Center · Charlottesville, VA · 2022

    General charitable purposes

  • $125,000

    Abortion Care Network · Washington, DC · 2025

    Charitable

  • $125,000

    Climate and Clean Energy Equity Fun · Washington, DC · 2025

    Charitable

  • $125,000

    Earthjustice · San Francisco, CA · 2025

    Charitable

  • $125,000

    Land Trust Alliance Incorporated · Washington, DC · 2025

    Charitable

  • $125,000

    Regenerative Agriculture Foundation · Minneapolis, MN · 2025

    Charitable

  • $125,000

    Trustees for Alaska · Anchorage, AK · 2025

    Charitable

  • $125,000

    Land Trust Alliance Incorporated · Washington, DC · 2024

    Charitable

  • $125,000

    Trustees for Alaska · Anchorage, AK · 2024

    Charitable

  • $125,000

    Trustees for Alaska · Anchorage, AK · 2023

    General charitable purposes

  • $125,000

    Center for Biological Diversity · Tucson, AZ · 2022

    General charitable purposes

  • $125,000

    Trustees for Alaska · Anchorage, AK · 2022

    General charitable purposes

  • $100,000

    Alaska Wilderness League · Washington, DC · 2025

    Charitable

  • $100,000

    Amigos Bravos · Taos, NM · 2025

    Charitable

  • $100,000

    Center for Rural Affairs · Lyons, NE · 2025

    Charitable

  • $100,000

    Institute for Energy Economics · Valley City, OH · 2025

    Charitable

  • $100,000

    International Planned Parenthood Fe · New York, NY · 2025

    Charitable

  • $100,000

    Just Transition Fund · Keswick, VA · 2025

    Charitable

  • $100,000

    National Caucus of Environmental Le · Washington, DC · 2025

    Charitable

  • $100,000

    National Institute for Reproductive · New York, NY · 2025

    Charitable

  • $100,000

    National Womens Law Center · Washington, DC · 2025

    Charitable

  • $100,000

    Native Americans in Philanthropy · Washington, DC · 2025

    Charitable

  • $100,000

    Nature Conservancy · North Charleston, SC · 2025

    Charitable

  • $100,000

    Oregon Natural Desert Association I · Bend, OR · 2025

    Charitable

  • $100,000

    Planned Parenthood of Southern New · New Haven, CT · 2025

    Charitable

  • $100,000

    Redford Center · San Francisco, CA · 2025

    Charitable

  • $100,000

    Rockefeller Philanthropy Advisors I · New York, NY · 2025

    Charitable

  • $100,000

    Rocky Mountain Planned Parenthood I · Denver, CO · 2025

    Charitable

  • $100,000

    Southern Environmental Law Center · Charlottesville, VA · 2025

    Charitable

  • $100,000

    Western Environmental Law Center · Eugene, OR · 2025

    Charitable

  • $100,000

    Wildlife Conservation Society · Bronx, NY · 2025

    Charitable

  • $100,000

    Windward Fund · Washington, DC · 2025

    Charitable

  • $100,000

    Women Donors Network · San Francisco, CA · 2025

    Charitable

  • $100,000

    Abortion Care Network · Washington, DC · 2024

    Charitable

  • $100,000

    Institute for Energy Economics and · Lakewood, OH · 2024

    Charitable

  • $100,000

    Native Americans in Philanthropy · Washington, DC · 2024

    Charitable

  • $100,000

    Open Space Institute · New York, NY · 2024

    Charitable

  • $100,000

    Planned Parenthood of Southern New · New Haven, CT · 2024

    Charitable

  • $100,000

    Planned Parenthood South Atlantic · Raleigh, NC · 2024

    Charitable

  • $100,000

    Regenerative Agriculture Foundation · Minneapolis, MN · 2024

    Charitable

  • $100,000

    Rockefeller Philanthropy Advisors I · New York, NY · 2024

    Charitable

  • $100,000

    Southern Environmental Law Center · Charlottesville, VA · 2024

    Charitable

  • $100,000

    Western Environmental Law Center · Eugene, OR · 2024

    Charitable

  • $100,000

    Wildlife Conservation Society · Bronx, NY · 2024

    Charitable

  • $100,000

    Abortion Care Network · Washington, DC · 2023

    General charitable purposes

  • $100,000

    Amigos Bravos · Taos, NM · 2023

    General charitable purposes

  • $100,000

    Craig Hospital Foundation · Englewood, CO · 2023

    General charitable purposes

  • $100,000

    Institute for Energy Economics and Financial Analysis · Cleveland, OH · 2023

    General charitable purposes

  • $100,000

    Land Trust Alliance · Washington, DC · 2023

    General charitable purposes

  • $100,000

    Native Americans in Philanthropy · Washington, DC · 2023

    General charitable purposes

  • $100,000

    Planned Parenthood South Atlantic · Raleigh, NC · 2023

    General charitable purposes

  • $100,000

    Redford Center · San Francisco, CA · 2023

    General charitable purposes

  • $100,000

    Rockefeller Philanthropy Advisors · New York, NY · 2023

    Just transition fund

  • $100,000

    Southern Environmental Law Center · Charlottesville, VA · 2023

    General charitable purposes

  • $100,000

    Western Environmental Law Center · Eugene, OR · 2023

    General charitable purposes

  • $100,000

    Wildlife Conservation Society · Bronx, NY · 2023

    General charitable purposes

  • $100,000

    Woodstock Land Conservancy · Woodstock, NY · 2023

    General charitable purposes

  • $100,000

    Alaska Wilderness League · Washington, DC · 2022

    General charitable purposes

  • $100,000

    Institute for Energy Economics and Financial Analysis · Cleveland, OH · 2022

    General charitable purposes

  • $100,000

    Planned Parenthood South Atlantic · Raleigh, NC · 2022

    General charitable purposes

  • $100,000

    Regenerative Agriculture Foundation · Minneapolis, MN · 2022

    General charitable purposes

  • $100,000

    Save the Sound · New Haven, CT · 2022

    General charitable purposes

  • $100,000

    Southeast Alaska Conservation Council · Juneau, AK · 2022

    General charitable purposes

  • $90,000

    Alaska Public Interest Research Group · Anchorage, AK · 2023

    General charitable purposes

  • $90,000

    Alaska Public Interest Research Group · Anchorage, AK · 2022

    General charitable purposes

  • $90,000

    Center for International Environmental Law · Washington, DC · 2022

    General charitable purposes

  • $90,000

    Northern Alaska Environmental Center · Fairbanks, AK · 2022

    General charitable purposes

View all 440 grants →

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Source: IRS Form 990-PF, Part XV, as filed by the foundation. These are grants already paid — a record of what this funder backs, not an open call.