· Private foundation
Rotonda Foundation
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 FY2020–2024.
Where the money goes
Your grants by size, and where they go.
By grant size · FY2024
- Under $10k24 grants · $75k
- $10k–50k21 grants · $330k
- $50k–250k2 grants · $150k
| Recipient | Amount |
|---|---|
| HUDSON VALLEY WRITING PROJECT VIA RESEARCH FOUNDATION FOR SUNNY (FS) | $100,000 |
| MADISON SQUARE PARK CONSERVANCY (MSPC) | $50,000 |
| DOCTORS WITHOUT BORDERS USA | $25,000 |
| PARTNERS IN HEALTH | $25,000 |
| WASHINGTON UNIVERSITY - PROJECT ARKTHE SPOT | $25,000 |
| ASTRAEA FOUNDATION | $25,000 |
| JEWISH FEDERATION OF ST LOUIS | $20,000 |
| ST LOUIS PUBLIC RADIO - 907 KWMU | $20,000 |
| PLANNED PARENTHOOD OF THE ST LOUIS REGION | $20,000 |
| PREGNANCY JUSTICE (FKA NATIONAL ADVOCATES FOR PREGNANT WOMEN - NAPW) | $15,000 |
| SAINT LOUIS SYMPHONY ORCHESTRA | $15,000 |
| PEDAL THE CAUSE | $15,000 |
| TYPE MEDIA CENTER (FKA THE NATION INSTITUTE) | $15,000 |
| MOOG CENTER FOR DEAF EDUCATION | $15,000 |
| BARNES-JEWISH HOSPITAL THE FOUNDATION FOR - BJC HOSPICEEVELYN'S HOUSE | $15,000 |
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 (FY20–24, $26k) land where the poverty rate runs at 10%, against an area that typically sits at 11%. 96% 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.
And the relationships you keep tend to grow: grantees you re-up on have seen median revenue of +64% since the first grant, against +55% for the ones you funded once.
46 repeat relationships — 33 still active in FY2024, 13 since wound down; 9 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, 63% of grant dollars renewed an existing relationship; $185k 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
- MSMADISON SQUARE PARK CONSERVANCY INC5× · 2020–2024 · $288k · revenue +39%
- SLST LOUIS ART MUSEUM FOUNDATION5× · 2020–2024 · $103k · revenue +64%
- CSCANCER SUPPORT COMMUNITY OF GREATER ST LOUIS5× · 2020–2024 · $70k · revenue +5%
Funded once
- HVHUDSON VALLEY WRITING PROGRAMRESEARCH FOUNDATION FOR SUNY ASFISCAL SPONSORone grant, 2020 · $75k
- HVHUDSON VALLEY WRITING PROGRAM RESEARCH FOUNDATION FOR SUNY AS FISCAL SPONSOone grant, 2021 · $75k
- HVHUDSON VALLEY WRITING PROGRAM RESEARCH FOUNDATION FOR SUNY AS FISCAL SPONSone grant, 2022 · $75k
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 mission of the organization is to foster the development of creative individuals as writers and artists and to promote public appreciation of excellence in the literary and graphic arts by publishing a magazine containing fiction,…
To collect, display and interpret objects in craft art and design.
The mission of the brooklyn institute of arts and sciences, d/b/a brooklyn museum (the "museum") is to bring people together through art and experiences that inspire celebration, compassion, courage, and the will to act. (see schedule o).
At sarah lawrence college, our mission is to graduate citizens of the world who are diverse in every definition of the word, who take intellectual and creative risks, and who are able to focus exceptional intellectual discipline (continued…
New york school of interior design provides the most innovative, immersive, and transformative interior design education in the world, demonstrating the impact of professionally designed interiors on the health, happiness, and well-being…
The architectural league of new york supports critically transformative work in the allied fields that shape the built environment. as a vital, independent forum, the league stimulates thinking, debate, and action on today's (continued on…
To educate students to be ethical and socially responsible leaders in a global community.
The Museum of Modern Art is a private, non-profit institution chartered by the State of New York Department of Education in 1929 to foster public awareness of modern and contemporary art. (Continued in Schedule O)
The new york botanical garden is a museum of plants and a scientific research center devoted to the study of plants and their uses. it is the garden's mission to improve public understanding of the natural world, horticulture, and the…
The bac is committed to provide excellence in design education grounded in practice and accessible to diverse communities.
The new york studio school is committed to giving a significant education to the aspiring artist, a preamble to a lifetime's engagement in drawing, painting, and sculpture. (see schedule o for continuation)
The organization's mission is to educate students for creative occupations in diverse fields of arts and media.
For reference, the grantee most central to the portfolio’s shape is Harlem Educational Activities Fund Inc and the most unlike its peers is Partners in Health a Nonprofit Corporation. 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 41 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.
64 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. 64 of the 93 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 MADISON SQUARE PARK CONSERVANCY INC ↗
- Who funds ST LOUIS ART MUSEUM FOUNDATION ↗
- Who funds Jewish Federation of St Louis ↗
- Who funds THE MOOG CENTER FOR DEAF EDUCATION ↗
- Who funds THE ASTRAEA FOUNDATION INC ↗
- Who funds CANCER SUPPORT COMMUNITY OF GREATER ST LOUIS ↗
- Who funds SAINT LOUIS SYMPHONY ORCHESTRA ↗
- Who funds CENTER FOR CONSTITUTIONAL RIGHTS ↗
- Who funds REGIONAL FOOD BANK OF NORTHEASTERN NEW YORK INC ↗
- Who funds AMERICAN JEWISH COMMITTEE ↗
- Who funds Opera Theatre of Saint Louis ↗
- Who funds WASHINGTON UNIVERSITY ↗
- Who funds POLITICAL RESEARCH ASSOCIATES INC ↗
- Who funds GOD'S LOVE WE DELIVER INC ↗
- Who funds JAZZ ST LOUIS ↗
- Who funds BARD COLLEGE ↗
- Who funds PREGNANCY JUSTICE INC ↗
- Who funds SHARE OUR STRENGTH ↗
- Who funds CAREERS THROUGH CULINARY ARTS PROGRAM DBA CULINARY CAREERS PROGRAM ↗
- Who funds PARTNERS IN HEALTH A NONPROFIT CORPORATION ↗
- Who funds LIFT FOR LIFE ACADEMY FOUNDATION INC ↗
- Who funds GIFFORDS LAW CENTER TO PREVENT GUN VIOLENCE ↗
- Who funds MEDECINS SANS FRONTIERES USA INC ↗
- Who funds PEDAL THE CAUSE ↗
- Who funds THE SCHOLARSHIP FOUNDATION OF ST LOUIS ↗
- Who funds Scenic Hudson Inc ↗
- Who funds REPRODUCTIVE FREEDOM FOR ALL FOUNDATION ↗
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: Trio Foundation of St Louis · St Louis Community Foundation Inc · Edward Jones Foundation · The Kranzberg Family Charitable Foundation · Leon and Mary Strauss Charitable Foundation · Centene Foundation · Gershman Foundation (Formerly Gershman Charitable Trust) · Jewish Federation of St Louis · William T Kemper Foundation Commerce Bank Trustee · Edward Jones Foundation · Regional Cultural and Performing Arts Development Commission · Washington University
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 Rotonda Foundation 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.
- World Learning Inc — 39% of income from government
- Greenwoods Counseling & Referrals Inc — 7% of income from government
- Pilobolus Inc — 1% of income from government
- Partners in Health a Nonprofit Corporation — 0% 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 Rotonda Foundation?
Find your warmest path to Rotonda 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.