· Private foundation
The Woodtiger Fund
Its FY2024 filing reports that it funds preselected organizations and did not take unsolicited requests; check the foundation's own site before ruling it out.
What you funded, over time
Every grant placed by its stated purpose and the recipient’s mission, by year — across FY2018–2024.
Where the money goes
Your grants by size, and where they go.
By grant size · FY2024
- Under $10k8 grants · $31k
- $10k–50k17 grants · $432k
- $50k–250k14 grants · $1.6M
- $250k+3 grants · $3.1M
| Recipient | Amount |
|---|---|
| Individual grant recipient | $2,540,000 |
| DELAWARE RIVERKEEPER NETWORK | $350,000 |
| WILDLIFE GUARDIANS | $250,000 |
| NATIONAL CAUCUS OF ENVIRONMENTAL LEGISLATORS | $235,000 |
| WILD EARTH ALLIES | $225,000 |
| WILDLIFE CONSERVATION SOCIETY | $222,000 |
| WILDLIFE GUARDIANS | $156,000 |
| CENTER FOR BIOLOGICAL DIVERSITY | $150,000 |
| ENDANGERED SPECIES COALITION | $125,000 |
| SAVE THE RHINO INTERNATIONAL | $115,000 |
| Individual grant recipient | $60,000 |
| GREEN CORPS | $60,000 |
| NORTHEAST WILDERNESS TRUST | $50,000 |
| WILDLANDS NETWORK | $50,000 |
| MERCY FOR ANIMALS | $50,000 |
Do your dollars go where the need is?
Each grant placed by the hardship in its grantee’s ZIP, then read against the area’s typical level.
Your human-services grants (FY19–23, $70k) land where the poverty rate runs at 10%, against an area that typically sits at 10%. 64% of those dollars go to grantees based in above-average-need neighborhoods. Most of your grants land in higher-need ZIPs.
Matched: human-services grants are those whose grantee’s IRS cause code is Human Services. Placed by people below the poverty linein the grantee’s ZIP, averaged from the tracts in that ZIP; grantee ZIP can differ from where services are delivered.
Which US states your grants reach
US grants placed by each grantee’s ZIP, which can differ from where services are actually delivered. Need from public data — U.S. Census/ACS, CDC PLACES, Eviction Lab, USDA — shown as context about the area, never attributed to your giving.
Where the work is directed
The same grants, placed two ways — where each recipient sits, and where its stated purpose earmarks the money.
About 7% of The Woodtiger Fund’s grant dollars are earmarked, by their stated purpose, for a different county than the recipient’s own address — money that lands at a nonprofit in one place but is meant to do its work in another.
Recipient view: each grant at its grantee’s ZIP, mapped to a county. Directed view: each grant at the county its stated purpose names, falling back to the recipient’s county when the purpose names no place; US grants only. A county shows only if it carries the top 95% of that view’s dollars. Purposes are read from the foundation’s own 990 grant descriptions.
Who you back again
Which organizations you funded more than once, and which you funded a single time. Each grantee is matched to its own filings.
And the relationships you keep tend to grow: grantees you re-up on have seen median revenue of +53% since the first grant, against +4% for the ones you funded once.
59 repeat relationships — 35 still active in FY2024, 24 since wound down; 5 grantees were first funded in FY2024 (too recent to call).
How the two cohorts compare
Organizations
Total granted
Median revenue growth · since first grant
Still filing today
New vs renewed · share of each year
In FY2024, 98% of grant dollars renewed an existing relationship; $80k went to new ones.
Where new relationships form · theme of each grantee’s first grant
First-time = a grantee’s first year in your filing window; renewed = funded in an earlier year too. As a portfolio matures the renewed share naturally climbs — once funded, an org stays “renewable” — so the signal is the years that buck it (a new-grantee intake wave). 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
- WGWILDLIFE GUARDIANS6× · 2018–2024 · $1.9M · revenue +105% · 26% of their budget
- WEWild Earth Allies Inc7× · 2018–2024 · $909k · revenue +102%
- NCNATIONAL CAUCUS OF ENVIRONMENTAL LEGISLATORS4× · 2021–2024 · $875k · revenue +82%
Funded once
- NCNAT'L CAUCUS OF ENVIRONMENTAL LEISLone grant, 2019 · $310k
- IGIndividual grant recipientone grant, 2019 · $254k
- NCNAT'L CAUCUS OF ENVIRON LEGISLATORSone grant, 2020 · $240k
Repeat = funded in two or more distinct years; growth and survival are read from each grantee’s own subsequent IRS filings.
The map has a center of gravity: the average direction from the rest of the sector toward the organizations the foundation funds — the shape of its giving. Scoring every nonprofit along that direction surfaces the ones that look most like the portfolio. These are the closest matchesthat aren’t grantees — a resemblance in what they say they do, not a recommendation.
Wwf's mission is to conserve nature and reduce the most pressing threats to the diversity of life on earth. (continued on schedule o)
Rainforest trust saves endangered wildlife and protects our planet by creating rainforest reserves through partnerships, community engagement, and donor support.
Connect conservationists and supporters, deploy resources to the field, provide conservationists with tools and support they need to succeed.
Defenders of Wildlife is a national, nonprofit membership organization dedicated to the protection of all native animals and plants in their natural communities.
Iucn-us fund builds bridges between us donors and iucn by catalyzing, accelerating, funding and promoting iucn's work - conserving nature and natural resources in the united states and throughout the world.
The mission of the nature conservancy is to conserve the lands and waters on which all life depends.
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…
Ci works to spotlight and secure the critical benefits that nature provides to humanity.
Wildaid's mission is to inspire change and empower the world to protect wildlife and vital habitats from critical threats.
To protect endangered species.
The purpose of rainforest foundation us is to support indigenous peoples and forest communities in their efforts to secure their lands, protect their environment, and uphold their rights.
Nature and culture international conserves biologically diverse landscapes in latin america, in concert with local cultures, for the well-being of the planet.
For reference, the grantee most central to the portfolio’s shape is African Parks Foundation of America and the most unlike its peers is The Biophilia Foundation Inc. Resemblance is measured on each organization’s own IRS 990 mission text; it reflects how work is described, not its quality or impact.
For each theme you fund, this compares how the sector’s money is shifting with how your own giving is shifting.
Sector change and giving change are each shown relative to their own range, growing (right) or shrinking (left); both normalized, so inflation isn’t mistaken for growth.
Your grantees are a median of 27 years old; the field is 16. You back the established end — and your money leans older still.
The field is 22% startups (under 5 years old) — 3% of your grantees by number, and just 1% of your money.
The orgs you fund almost never close — 0.0% lost their exemption, against 13% of the field you don’t fund.
Age = years since IRS exemption (a founding proxy). “Closed” = auto-revocation for 3 years of non-filing — a floor on closure, not proof, and bigger established orgs lapse least. Association, not causation.
75 grantees tracked through their own filings, 2017–2025.
Each one resolved to its own IRS returns and tracked year by year — your grant beside their revenue from every source. Association, dated; never a causal claim.
Counted here: distinct organizations you funded across 2017–2025, not grant rows in a single year — so this will not match the grant count on the cover. 75 of the 104 grantees resolved in that span have returns of their own we could reconcile; the rest are funded organizations whose filings we could not track year by year.
Where your money sits — by cause, then by grantee
Each org by its size and your share of it — top-left is where you’re load-bearing
Go grantee by grantee — a decade per org, and how each moved after you funded them
A decade per grantee — revenue shaded, your grants as bars, all rows on one timeline.
- Who funds WILDLIFE GUARDIANS ↗
- Who funds DELAWARE RIVERKEEPER NETWORK ↗
- Who funds UNDERCURRENT INC ↗
- Who funds Wild Earth Allies Inc ↗
- Who funds ENDANGERED SPECIES COALITION ↗
- Who funds NATIONAL CAUCUS OF ENVIRONMENTAL LEGISLATORS ↗
- Who funds GREEN AMENDMENTS FOR THE GENERATIONS ↗
- Who funds COMMON CAUSE EDUCATION FUND ↗
- Who funds FRANKFURT ZOOLOGICAL SOCIETY - US INC ↗
- Who funds SAVE THE RHINO INTERNATIONAL INC ↗
- Who funds CENTER FOR BIOLOGICAL DIVERSITY INC ↗
- Who funds THE INTERNATIONAL WILDLIFE COEXISTENCE NETWORK INC ↗
- Who funds MAYO CLINIC ↗
- Who funds Wild Earth Society Incorporated ↗
- Who funds CITIZENS FOR PENNSYLVANIA'S FUTURE ↗
- Who funds AMERICAN RIVERS INC ↗
- Who funds Wildlife Conservation Society ↗
- Who funds GREEN CORPS INC ↗
- Who funds SMITHSONIAN INSTITUTION ↗
- Who funds THE PUBLIC INTEREST LAW CENTER ↗
- Who funds TINICUM CONSERVANCY ↗
- Who funds BAT CONSERVATION INTERNATIONAL ↗
- Who funds THE INTERNATIONAL RHINO FOUNDATION ↗
- Who funds THE SAND COUNTY FOUNDATION INC ↗
- Who funds MERCY FOR ANIMALS INC ↗
- Who funds BREAST CANCER ACTION ↗
- Who funds UNIVERSITY OF WASHINGTON FOUNDATION ↗
- Who funds PLANNED PARENTHOOD FEDERATION OF AMERICA INC ↗
- Who funds LUKURU WILDLIFE RESEARCH FOUNDATION ↗
- Who funds ECO BUCKS INC ↗
- Who funds AFRICAN PARKS FOUNDATION OF AMERICA ↗
The grantmakers whose grantees overlap with yours far more than size alone predicts. Each orbits closer the stronger the alignment; the arcs between them show where they also fund each other. Here it reads as a tightly interlocked camp — most of these funders back each other's grantees too.
Open a dossier: Seadream Family Foundation Inc · The Wildcat Foundation · Wildlife Conservation Network Inc · The Robert Wood Johnson Foundation · Doris Duke Charitable Foundation Inc · Patagoniaorg · The Cigna Group Foundation · Seebe Frances Tuw · Wilburforce Foundation · National Fish and Wildlife Foundation · The Horne Family Foundation · Arcus Foundation
Affinity is a Gamma-Poisson posterior co-funding rate, re-centered on the typical rate, so thin evidence shrinks toward no signal. A research starting point: overlap is association, not proof of shared intent.
Government reliance of your grantees
Every dot is one organization The Woodtiger Fund funds. Left–right is the share of its income from government; up–down is the share from you. Bigger dots raise more. Filter to federal or a single department — and drag the year to watch it move.
- Northeast Wilderness Trust Corporation — 2% of income from government
- Giraffe Conservation Foundation Usa — 2% of income from government
- Brattleboro Memorial Hospital — 1% of income from government
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 your grant caused the public funding. Coverage is precision-first — a floor, not 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 12–24 months.
Warm introductions · Powered by PlinthPlus
How do I get to The Woodtiger Fund?
Find your warmest path to The Woodtiger Fund 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.