How much does Tortuga Charitable Foundation give?

Tortuga Charitable Foundation reported 113 grants totaling $8,515,500 in its FY2025 IRS filing. It funded between 46 and 108 organizations a year over FY2018 to FY2024.

What does Tortuga Charitable Foundation fund?

By grant dollars over FY2017 to FY2025, its largest causes are Environment (57%), Health (8%), Philanthropy (7%).

Who are Tortuga Charitable Foundation's largest grantees?

By total granted over FY2017 to FY2025: Planned Parenthood of Southern New England Inc ($1.6M), Environmental Integrity Project ($1.3M), Mount Grace Land Conservation Trust ($1.3M).

Does Tortuga Charitable Foundation fund new organizations?

In FY2024, 25% of the organizations it funded were first-time grantees.

Does Tortuga Charitable Foundation accept unsolicited applications?

Its most recent filing reports that it funds preselected organizations and does not take unsolicited requests. Check the foundation's own site before ruling it out.

Which funders back the same organizations as Tortuga Charitable Foundation?

Its strongest co-funders, measured against what their size predicts, include Patagoniaorg, Rockefeller Family Fund Inc, Resources Legacy Fund.

Where is Tortuga Charitable Foundation based?

Tortuga Charitable Foundation is based in NJ.

Tortuga Charitable Foundation

Tortuga Charitable Foundation at a glance

· Private foundation

Tortuga Charitable Foundation

Its FY2025 filing reports that it funds preselected organizations and did not take unsolicited requests; check the foundation's own site before ruling it out.

$8.5M

Granted FY2025still arriving

113

Grants FY2025still arriving

States reached

$300k

Largest

01What it funds

0198% classified

What it funded, over time

Every grant placed by its stated purpose and the recipient’s mission, by year, FY2017 to 2025.

Environment$33MHealth$4.8MPhilanthropy$3.9MEducation$2.6MPublic Benefit$2.3MAnimals$1.5MCommunity Improvement$1.5MFood & Nutrition$1.1MOther$0

02FY2025 · 113 grants

Where the money goes

Grants by size, and the largest recipients.

By grant size · FY2025

Under $10k1 grant · $5k
$10k–50k23 grants · $551k
$50k–250k88 grants · $7.7M
$250k+1 grant · $300k

$75,000

Median grant

States reached

$112M

Total assets

Largest grants
Recipient	Amount
Rockefeller Family Fund Inc	$300,000
Environmental Integrity Project	$200,000
Resources Legacy Fund	$200,000
Spiral House Park	$175,000
Bennington College Corporation	$165,000
Nature Conservancy	$165,000
Planned Parenthood Federation of Am	$150,000
Earthjustice	$125,000
Abortion Care Network	$125,000
Regenerative Agriculture Foundation	$125,000
Land Trust Alliance Incorporated	$125,000
Trustees for Alaska	$125,000
Climate and Clean Energy Equity Fun	$125,000
National Caucus of Environmental Le	$100,000
Planned Parenthood of Southern New	$100,000

02The need

Does the money reach high-need areas?

Each grant placed by the hardship in its grantee’s ZIP, against the area’s typical level.

show:

Its human-services grants (FY22–25, $305k) land where the poverty rate runs at 18%, against an area that typically sits at 10%. 98% of those dollars go to grantees based in above-average-need neighborhoods. Most of its grants land in higher-need ZIPs.

grant to an above-average-need area below average· circle size = grant amount

How this is measured

Matched: human-services grants are those whose grantee’s IRS cause code is Human Services. Placed by people below the poverty line in the grantee’s ZIP, averaged from the tracts in that ZIP.

Which US states its grants reach

How this is measured

US grants placed by each grantee’s ZIP, which can differ from where services are delivered. Need from public data (U.S. Census/ACS, CDC PLACES, Eviction Lab, USDA), shown as context about the area, never attributed to the funder’s giving.

03Its grantees

repeat funding

Who it funds again

Organizations funded in more than one year, against those funded once.

93%of every dollar goes to organizations it has funded before.

$49M · 151 repeat orgs$3.8M to everyone else

Grantees it renews have grown median revenue +32% since the first grant, against +10% for those funded once.

151 repeat relationships: 90 still active in FY2025, 61 since wound down; 15 grantees were first funded in FY2025 (too recent to call).

How the two cohorts compare

Re-uppedFunded once

Organizations

151

Total granted

$49M

$2.7M

Median revenue growth · since first grant

+32%

+10%

Still filing today

87%

50%

New vs renewed · share of each year

In FY2025, 85% of grant dollars renewed an existing relationship; $1.2M went to new ones.

RenewedFirst-time

Where new relationships form · theme of each grantee’s first grant

EnvironmentHealthAnimalsPublic BenefitEducationCivil RightsOther

How this is measured

First-time means a grantee’s first year in the filing window; renewed means funded in an earlier year too. The renewed share climbs naturally as a portfolio matures, so the signal is a year that bucks it (a wave of new grantees). The earliest year is left-censored: relationships that predate the data read as new. Theme is the grantee’s IRS cause.

Backed again, and grew

PLANNED PARENTHOOD OF SOUTHERN NEW ENGLAND INC
8× · 2017–2025 · $1.6M · revenue +26%
EI
ENVIRONMENTAL INTEGRITY PROJECT
7× · 2019–2025 · $1.3M · revenue +24%
MG
MOUNT GRACE LAND CONSERVATION TRUST
9× · 2017–2025 · $1.3M · revenue +52%

Funded once

VR
VOTER REGISTRATION PROJECT
one grant, 2024 · $250k · revenue 0%
RF
ROCKEFELLER FAMILY
one grant, 2017 · $150k
CH
Craig Hospital Foundationgraduated
one grant, 2023 · $100k · revenue +30%

How this is measured

Repeat means funded in two or more distinct years. Growth and survival are read from each grantee’s own subsequent IRS filings.

04Its field

Closest unfunded matches

The nonprofits that most resemble its grantees but are not funded by it, scored along the direction from the rest of the field toward the portfolio. A resemblance in what they say they do, not a recommendation.

Environmental Investigation Agency

To establish and promote programs to protect the global climate, forests, wildlife and the natural environment, through research, advocacy, and investigation.

International

The Union of Concerned Scientists Inc

The union of concerned scientists puts rigorous, independent science into action, developing solutions and advocating for a healthy, safe, and just future.

International

CarbonPlan

Improving the transparency and scientific integrity of climate solutions through open data and tools.

Environment

Eastern National

Eastern national promotes the public's understanding and support of america's national parks and other public trust partners by providing quality educational experiences, products and services.

Recreation & Sports

Native Plant Trust Inc

The organization's mission is to conserve and promote new england's native plants to ensure healthy, biologically diverse landscapes.

Environment

Environmental Law Alliance Worldwide

Educational & charitable. to provide legal and scientific information to public interest attorneys and scientists in numerous countries.

—

National Association of Clean Water Agencies

Nacwa is the national voice of public clean water utilities, shaping water policy, convening a vibrant peer network, and empowering water leaders.

—

Cascadia Wildlands

Cascadia wildlands defends and restores cacasia's wild ecosystems in the forests,in the courts, and in the streets. we envision vast old-growth forests, rivers full of wild salmon, wolves howling in the backcountry, a stable climate, and…

Environment

Asociacion Interamericana Para La Defensa Del Ambiente

To strenghten people's ability to guarantee their individual and collective right to a healthy environment, via the development, implementation, and effective enforcement of national and international law.

Crime & Legal

Environment Next Inc

Environment next supports individuals, nonprofits and businesses around the world on solutions to complex climate issues. we provide leadership, outreach and communication support, grants, and investments to empower leaders and their ideas…

Environment

Rogue Climate

Rogue Climate's mission is to empower Southern Oregon communities most impacted by climate change including low-income, rural, youth, seniors & communities of color, to win climate justice by organizing for clean energy, sustainable jobs &…

Education

Rainforest Trust

Rainforest trust saves endangered wildlife and protects our planet by creating rainforest reserves through partnerships, community engagement, and donor support.

International

How this is measured

The grantee most central to the portfolio’s shape is Wildearth Guardians; the most unlike its peers is River Valley Organizing. Resemblance is measured on each organization’s own IRS 990 mission text; it reflects how work is described, not its quality or impact.

04the grantee network

181 grantees tracked through their own filings, 2017–2025.

Each grant beside the grantee’s revenue from every source, year by year.

How this is measured

Counted here: distinct organizations funded across 2017 to 2025, not grant rows in a single year, so this will not match the grant count on the cover. 181 of the 232 grantees resolved in that span have returns of their own we could reconcile.

Each grantee is resolved to its own IRS returns. Association, dated; never a causal claim.

Load-bearing (≥25% of a budget)

Early backer (in before they grew)

178/181

Grantees still filing

128/181

Grew since first funded

Where the money sits, by cause and then by grantee

Environment$24,972,800Other$17,853,250Health$5,650,500Education$3,125,000Philanthropy$2,285,000Animals$1,970,000Public Benefit$1,560,000

Showing the 200 largest grantees by grant value.

Each grantee by its size and the funder’s share of it; top left is load-bearing

Grantee by grantee: a decade per organization, before and after funding

A decade per grantee: revenue shaded, grants as bars, all rows on one timeline.

Co-funders

Grantmakers whose grantees overlap with this funder’s far more than size alone predicts. Closer means stronger alignment; arcs show where they also fund each other. Here they form a tightly interlocked group: most of these funders back each other's grantees too.

PatagoniaorgCA77.7× affinity49 shared granteesties to 11 of 11Hover any node to trace its alignments.Compare side by side →

Open a dossier: Patagoniaorg · Rockefeller Family Fund Inc · Resources Legacy Fund · United States Energy Foundation · The Schmidt Family Foundation · Wilburforce Foundation · Park Foundation Inc · The Wilderness Society · Environmental Defense Fund Incorporated · Maine Community Foundation Inc · The New-Land Foundation Inc · The Energy Foundation

How this is measured

Affinity is a Gamma-Poisson posterior co-funding rate, re-centered on the typical rate, so thin evidence shrinks toward no signal. Overlap is association, not proof of shared intent.

How much its grantees rely on government

Each dot is one organization Tortuga Charitable Foundation funds: left to right is the share of its income from government, bottom to top the share from Tortuga Charitable Foundation. Bigger dots raise more.

2024

’20’21’22’23’24’25

no gov moneyreceives it· size = income

10get no government money at all

34report government grants on their 990 we could not trace to a source (not plotted)

0rely on government for over half their income

typical government reliance, FY20–25

How this is measured

Government income is each org’s traced federal awards (USASpending grants and contracts) plus state payments (open checkbooks) as a share of its total revenue (IRS Form 990); the self-reported government-grant line (990 line 1e) is carried for cross-check: a grantee that reports government grants we could not trace to a source is left off the chart rather than shown as receiving none. An association, not a claim that a grant caused the public funding. Coverage is precision-first, a floor rather than a census; state records exist for 9 states, so a grantee outside them shows no state figure (dimmed) rather than a false zero. Federal award amounts are obligations, which can span years, so a single-year share is indicative. 990 filings lag 12 to 24 months.

05Through Plinth

Warm introductions · Powered by PlinthPlus

How do I get to Tortuga Charitable Foundation?

Find your warmest path to Tortuga Charitable Foundation through trustees and officers whose names appear on both boards. Search for your organization and Plinth traces the shortest route it can evidence.

Each link is a name appearing on two organizations’ public IRS 990 filings, matched on that name and, where the filings support it, on location. A same-state match has geographic support, which is a second matching feature rather than confirmation that the two are one person; a cross-state one is the likeliest to be two people who share a name. Every hop shows its tier, low-confidence and distant paths are held back rather than guessed, and it is worth confirming the person before you use the introduction.

Play a game based on Tortuga’s filings →

More from the funding graph

The unnamed billions

grants reported with no recipient in the public record

The regranting layer

51% of grant dollars land in the regranting layer

The DAF merry-go-round

$9.7B circulates between donor-advised funds

The endowment market

who holds foundation money, and what just moved

The camps

funders cluster by geography, not ideology

By state

where grant money is based, and what stays home