· Private foundation
Ivorybill Foundation Inc
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 FY2017–2024.
Where the money goes
Your grants by size, and where they go.
By grant size · FY2024
- Under $10k10 grants · $35k
- $10k–50k17 grants · $225k
- $50k–250k3 grants · $185k
| Recipient | Amount |
|---|---|
| OCEANA | $75,000 |
| COASTAL RIVERS CONSERVATION TRUST | $60,000 |
| MD ANDERSON CANCER CENTER | $50,000 |
| TRUST FOR PUBLIC LAND | $35,000 |
| TRUST FOR PUBLIC LAND | $25,000 |
| POTOMAC CONSERVANCY | $20,000 |
| AMERICAN CIVIL LIBERTIES UNION FOUNDATION | $15,000 |
| PLANNED PARENTHOOD FEDERATION OF AMERICA | $10,000 |
| CAPITAL AREA FOOD BANK | $10,000 |
| CONSERVATION LANDS FOUNDATION | $10,000 |
| DC CENTRAL KITCHEN | $10,000 |
| BUILDING BRIDGES ACROSS THE RIVER | $10,000 |
| SOME | $10,000 |
| OBERLIN COLLEGE | $10,000 |
| ISSUE ONE | $10,000 |
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 (FY19–24, $83k) land where the poverty rate runs at 14%, against an area that typically sits at 10%. 100% 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.
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.
38 repeat relationships — 26 still active in FY2024, 12 since wound down; 3 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, 88% of grant dollars renewed an existing relationship; $55k 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
- TWThe Washington-Waldorf School Inc8× · 2017–2024 · $465k · revenue +18%
THE TRUST FOR PUBLIC LAND8× · 2017–2024 · $420k · revenue +109%- MSMARET SCHOOL INC6× · 2018–2024 · $405k · revenue +29%
Funded once
- RLRESOURCES LEGACY FUNDgraduatedone grant, 2018 · $100k · revenue +48%
- SMSIBLEY MEMORIAL HOSPITAL FOUNDATIONone grant, 2020 · $50k · revenue -6%
- TOTOWN OF BRISTOLone grant, 2019 · $25k
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.
The bac is committed to provide excellence in design education grounded in practice and accessible to diverse communities.
Rainforest trust saves endangered wildlife and protects our planet by creating rainforest reserves through partnerships, community engagement, and donor support.
The open markets institute works to help people relearn how to use competition policy to build stronger democracies, more just and equitable societies, more innovative and sustainable economies, and a more secure and peaceful world.
To establish and promote programs to protect the global climate, forests, wildlife and the natural environment, through research, advocacy, and investigation.
The union of concerned scientists puts rigorous, independent science into action, developing solutions and advocating for a healthy, safe, and just future.
We work towards a future where birds thrive across the americas because audubon is a powerful, diverse, and ever-growing force for conservation. (continued on schedule o).
Pew Research Center is a nonpartisan "fact tank" that informs the public about the issues, attitudes and trends shaping America and the world. Pew Research Center generates a foundation of facts that enriches the public dialogue and…
Ci works to spotlight and secure the critical benefits that nature provides to humanity.
Wri is committed to creating change that improves people's lives and ensures the natural world can thrive. (see schedule o)wri's bold vision requires a formula for success we call "count it. change it. scale it.":- count it: our work is…
Wwf's mission is to conserve nature and reduce the most pressing threats to the diversity of life on earth. (continued on schedule o)
Provide an independent forum for those who dare to read, think, speak, and write to advance the professional, literary, and scientific understanding of sea power and other issues critical to global security.
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.
For reference, the grantee most central to the portfolio’s shape is The Potomac Conservancy Inc and the most unlike its peers is Power to Decide. 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 39 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) — 0% of your grantees by number, and just 0% 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.
42 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. 42 of the 55 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 The Washington-Waldorf School Inc ↗
- Who funds THE TRUST FOR PUBLIC LAND ↗
- Who funds MARET SCHOOL INC ↗
- Who funds Coastal Rivers Conservation Trust ↗
- Who funds Oberlin College ↗
- Who funds THE POTOMAC CONSERVANCY INC ↗
- Who funds Island Institute ↗
- Who funds OCEANA INC ↗
- Who funds RESOURCES LEGACY FUND ↗
- Who funds The President and Trustees of Colby College ↗
- Who funds BUILDING BRIDGES ACROSS THE RIVER INC ↗
- Who funds AMERICAN CIVIL LIBERTIES UNION FOUNDATION INC ↗
- Who funds PLANNED PARENTHOOD FEDERATION OF AMERICA INC ↗
- Who funds Rape Abuse & Incest National Network (RAINN) ↗
- Who funds WASHINGTON NATIONALS YOUTH BASEBALL ACADEMY ↗
- Who funds Conservation Lands Foundation ↗
- Who funds POWER TO DECIDE ↗
- Who funds THE DC CENTRAL KITCHEN INC ↗
- Who funds CAPITAL AREA FOOD BANK INC ↗
- Who funds SOME INC ↗
- Who funds ISSUE ONE ↗
- Who funds SIBLEY MEMORIAL HOSPITAL FOUNDATION ↗
- Who funds MAINE CENTER FOR ECONOMIC POLICY ↗
- Who funds MARTHA'S TABLE INC ↗
- Who funds American Bird Conservancy ↗
- Who funds LANDON SCHOOL ↗
- Who funds REWILD ↗
- Who funds SHE SHOULD RUN ↗
- Who funds The United States Holocaust Memorial Museum ↗
- Who funds City Wildlife Inc ↗
- Who funds SOUTHERN POVERTY LAW CENTER INC ↗
- Who funds ISLAND PRESS ↗
- Who funds MALDEF - MEXICAN AMERICAN LEGAL DEFENSE AND EDUCATIONAL FUND ↗
- Who funds Maine Audubon Society ↗
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: Greater Washington Community Foundation · The Ayco Charitable Foundation · T Rowe Price Program for Charitable Giving Inc · The William & Flora Hewlett Foundation · Maine Community Foundation Inc · New Venture Fund · Ibm International Foundation · American Endowment Foundation · Resources Legacy Fund · The Rockefeller Foundation · The Nature Conservancy · Patagoniaorg
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 Ivorybill Foundation Inc 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.
- Rock Creek Conservancy Inc — 60% 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 Ivorybill Foundation Inc?
Find your warmest path to Ivorybill Foundation Inc 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.