· Private foundation
THE MOSAIC FOUNDATION (Of R & P Heydon)
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
By grantee IRS cause code (NTEE).
A cause breakdown isn’t shown here: 50% of THE MOSAIC FOUNDATION (Of R & P Heydon)’s grantee dollars fall outside its nine largest cause areas, whether because the recipient carries no IRS cause code or because its cause sits in the long tail. A chart would be mostly one residual band and misrepresent the portfolio.
Where the money goes
Your grants by size, and where they go.
By grant size · FY2024
- Under $10k91 grants · $209k
- $10k–50k12 grants · $185k
| Recipient | Amount |
|---|---|
| PRESERVATION FOUNDATION OF PALM BEACH | $40,000 |
| THE FOOD GATHERERS INCORPORATED | $20,000 |
| Individual grant recipient | $15,000 |
| LEGACY LAND CONSERVANCY | $15,000 |
| UNIVERSITY OF MICHIGAN WILLIAM L CLEMENTS LIBRARY | $15,000 |
| ECOLOGY CENTER OF ANN ARBOR | $15,000 |
| MICHIGAN STATE UNIVERSITY - WKAR PUBLIC RADIO | $13,500 |
| AMERICAN TRUST FOR THE BRITISH LIBRARY | $11,000 |
| THE SOCIETY OF THE FOUR ARTS | $10,000 |
| MICHIGAN LEAGUE OF CONSERVATION VOTERS EDU FUND | $10,000 |
| LOWERTOWN RIVERFRONT CONSERVANCY | $10,000 |
| PRINCETON UNIVERSITY ANNUAL GIVING | $10,000 |
| PEACE NEIGHBORHOOD CENTER | $7,500 |
| HABITAT FOR HUMANITY OF HURON VALLEY | $7,500 |
| THE PALM BEACH SYMPHONY | $6,500 |
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, $49k) 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.
And the relationships you keep tend to grow: grantees you re-up on have seen median revenue of +35% since the first grant, against +19% for the ones you funded once.
106 repeat relationships — 76 still active in FY2024, 30 since wound down; 25 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, 85% of grant dollars renewed an existing relationship; $58k 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
- TPThe Preservation Foundation of Palm Beach Inc5× · 2020–2024 · $144k · revenue +388%
- FGFOOD GATHERERS5× · 2020–2024 · $74k · revenue +28%
- TSThe Society of the Four Arts Inc5× · 2020–2024 · $55k · revenue ×11
Funded once
- TLTHE LINCOLN MOTOR CAR FOUNDATIONone grant, 2022 · $15k
- HHHORSES' HAVENone grant, 2022 · $10k · revenue +19%
THE BARACK OBAMA FOUNDATIONone grant, 2022 · $5k · revenue -32%
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 Detroit Historical Society tells Detroit's stories and why they matter through its exhibits, programs, outreach, and the preservation and dissemination of its artifacts and collections.
The Morgan Library & Museum celebrates and shares the history and process of human creativity from antiquity to the present day through the preservation, study, and interpretation of a dynamic and growing collection.
To collect, display and interpret objects in craft art and design.
Our mission is conserving West Michigans ecologically critical land. We protect land by creating public nature preserves, providing support to communities and local governments in creating natural areas, and helping private landowners…
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 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,…
Museum has a mission to create opportunties for everyone to experience art that broadens understanding of the past, fosters community connections to the present, and creates diverse possbilities for the future.
Lincoln park zoo is dedicated to connecting people with nature by providing a free, family-oriented wildlife experience in the heart of chicago and by advancing the highest quality of animal care, horticulture, education, science and…
The bac is committed to provide excellence in design education grounded in practice and accessible to diverse communities.
Finance impacts everyone. as a socially relevant organization, the museum of american finance seeks to improve understanding of the influence of financial institutions and capital markets on the u.s. and global economies, and on…
The association for public art (apa, formerly the fairmount park art association) commissions, preserves, interprets and promotes public art in philadelphia. dedicated to creating a museum without walls that informs, engages and inspires…
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…
For reference, the grantee most central to the portfolio’s shape is Ann Arbor Area Community Foundation and the most unlike its peers is The Society for the Preservation of the Great American Songbook 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 36 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 2% of your money.
The orgs you fund almost never close — 0.8% 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.
124 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. 124 of the 210 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
Showing your 200 largest grantees by grant value.
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 Preservation Foundation of Palm Beach Inc ↗
- Who funds FOOD GATHERERS ↗
- Who funds The Society of the Four Arts Inc ↗
- Who funds LEGACY LAND CONSERVANCY ↗
- Who funds Peggy Adams Animal Rescue League of the Palm Beaches Inc ↗
- Who funds THE AMERICAN TRUST FOR THE BRITISH LIBRARY ↗
- Who funds THE PALM BEACH SYMPHONY SOCIETY INC ↗
- Who funds The Trustees of Princeton University ↗
- Who funds UNIVERSITY MUSICAL SOCIETY ↗
- Who funds MICHIGAN HISTORIC PRESERVATION NETWORK ↗
- Who funds SOS COMMUNITY SERVICES ↗
- Who funds Peace Neighborhood Center ↗
- Who funds Pebble Beach Company Foundation ↗
- Who funds HUMANE SOCIETY OF HURON VALLEY ↗
- Who funds PLANNED PARENTHOOD OF MICHIGAN ↗
- Who funds Packard Health Inc ↗
- Who funds MEDECINS SANS FRONTIERES USA INC ↗
- Who funds SOUTHERN POVERTY LAW CENTER INC ↗
- Who funds MICHIGAN THEATER FOUNDATION INC ↗
- Who funds The Frick Collection ↗
- Who funds HORSES' HAVEN ↗
- Who funds GARZA COUNTY HISTORICAL MUSEUM ↗
- Who funds THE LOWER TOWN RIVERFRONT CONSERVANCY ↗
- Who funds UNITED STATES EQUESTRIAN TEAM FOUNDATION INC ↗
- Who funds International Rescue Committee INC ↗
- Who funds SOUTH PLAINS COLLEGE FOUNDATION ↗
- Who funds CLASSIC CAR CLUB OF AMERICA MUSEUM INC ↗
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: Ann Arbor Area Community Foundation · Harry a and Margaret D Towsley Foundation · James a and Faith Knight Foundation · United Way of Washtenaw County · Duffy Foundation · Community Foundation for Southeast Michigan · The Martin Family Foundation · The Buhr Foundation · Thrift Shop Association of Ann Arbor · Vaughan Foundation · Charles Stewart Mott Foundation · Kiwanis Club of Ann Arbor Foundation Inc
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 MOSAIC FOUNDATION (Of R & P Heydon) 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.
- The Trustees of Princeton University — 11% of income from government
- Feed the Children Inc — 1% of income from government
- The Palm Beach Symphony Society Inc — 0% of income from government
- Partners in Health a Nonprofit Corporation — 0% of income from government
- Wounded Warrior Project Inc — 0% of income from government
- Oxfam-America Inc — 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.
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How do I get to THE MOSAIC FOUNDATION (Of R & P Heydon)?
Find your warmest path to THE MOSAIC FOUNDATION (Of R & P Heydon) 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.