· Private foundation
The Thomas F & Clementine L Mullan Foundation Inc
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.
What you funded, over time
By grantee IRS cause code (NTEE).
A cause breakdown isn’t shown here: 56% of THE THOMAS F & CLEMENTINE L MULLAN FOUNDATION INC’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 · FY2025
- Under $10k31 grants · $59k
- $10k–50k14 grants · $278k
- $50k–250k1 grant · $60k
| Recipient | Amount |
|---|---|
| NATIONAL SPORTING LIBRARY AND MUSEUM | $60,000 |
| JOHNS HOPKINS UNIVERSITY | $42,333 |
| SAINT IGNATIUS LOYOLA ACADEMY | $36,000 |
| ST ALBANS SCHOOL | $25,000 |
| UM ST JOSEPH MEDICAL CENTER FOUNDATION | $25,000 |
| BOY'S LATIN SCHOOL | $24,650 |
| SAINT PAUL'S SCHOOLS | $20,000 |
| CRISTO REY JESUIT HIGH SCHOOL | $20,000 |
| THE WENDT CENTER FOR LOSS AND HEALING | $20,000 |
| RUBICON PRODUCTIONS | $15,000 |
| THE MOUNT VERNON LADIES' ASSOC | $10,150 |
| CALVERT SCHOOL | $10,000 |
| WINDSOR CHARITABLE FOUNDATION | $10,000 |
| CATHEDRAL OF MARY OUR QUEEN | $10,000 |
| KENT ASSOCIATION OF RIDING THERAPY | $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 (FY21–25, $5k) land where the poverty rate runs at 16%, against an area that typically sits at 11%. 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 +24% since the first grant, against +6% for the ones you funded once.
58 repeat relationships — 34 still active in FY2025, 24 since wound down; 12 grantees were first funded in FY2025 (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 FY2025, 89% of grant dollars renewed an existing relationship; $44k 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
- TNTHE NATIONAL SPORTING LIBRARY AND MUSEUM7× · 2019–2025 · $291k · revenue +24%
JOHNS HOPKINS UNIVERSITY5× · 2020–2025 · $240k · revenue +42%- GHGILCHRIST HOSPICE CARE INC4× · 2019–2024 · $72k · revenue +52%
Funded once
- FMFIRST MILE STABLE CHARITABLE FOUNDATIONone grant, 2019 · $15k
- JHJOHNS HOPKINS MEDICINEone grant, 2019 · $10k
- TBTHE BOYS AND GIRLS CLUBS OF METROPOLITAN BALTIMOREone grant, 2024 · $10k · revenue -44%
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.
Degree granting college-maryland institute college of art is a private college dedicated to the education of professional artists and the further advancement of art in the community.
Blackbird laboratories is an independent nonprofit medical research organization based in baltimore that is focused on conducting medical and scientific research in conjunction with nonprofit hospitals and academic institutions,…
Marymount is a nationally ranked comprehensive catholic university, guided by the traditions of the religious of the sacred heart of mary, that emphasizes intellectual curiosity, service to others, and a global perspective. a marymount…
Chesapeake bay trust is a public, nonprofit grant-making organization created to promote public awareness of and participation in the restoration and protection of the chesapeake bay and its tributaries. (see schedule o for continuation)…
Promote religious, charitable, and educational interests of its members and constituent monthly meetings.
To raise and manage funds and to provide financial support to the university of baltimore. the foundation provides leadership, guidance, and support to the university's administration in advancing the mission and vision of the university.
As a statewide resource center, the school provides outreach, educational and residential services for students to reach their fullest potential by preparing them to be as successful, independent, and well-rounded contributing members of…
The mission of the holton-arms school is to cultivate the unique potential of young women through the "education not only of the mind, but of the soul and spirit".
The cfa society baltimore, inc. was founded in 1948. the cfa society baltimore, inc. was established to provide the financial community with information and knowledge, while advocating ethical conduct with regard to investments and…
To restore baltimore's urban forest through increased tree planting, community engagement, and advocacy.
Under the medical service plan of the university of maryland school of medicine, medical services are rendered by the members of the faculty on behalf of the school of medicine in connection with their duties to provide clinical…
Calverthealth medical center provides quality inpatient and ambulatory health care to the people of southern maryland that is accessible, cost-effective and compassionate. chmc works in partnership with the community to improve the health…
For reference, the grantee most central to the portfolio’s shape is Gbmc Foundation Inc and the most unlike its peers is The Herget Foundation. Resemblance is measured on each organization’s own IRS 990 mission text; it reflects how work is described, not its quality or impact.
Your grantees are a median of 40 years old; the field is 18. You back the established end — and your money leans older still.
The field is 20% 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.
63 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. 63 of the 125 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 NATIONAL SPORTING LIBRARY AND MUSEUM ↗
- Who funds JOHNS HOPKINS UNIVERSITY ↗
- Who funds INDIAN RIVER HOSPITAL FOUNDATION INC ↗
- Who funds THE BOYS' LATIN SCHOOL OF MARYLAND INC ↗
- Who funds GILCHRIST HOSPICE CARE INC ↗
- Who funds GB Charities Inc ↗
- Who funds MCDONOGH SCHOOL INCORPORATED ↗
- Who funds THE WINDSOR CHARITABLE FOUNDATION ↗
- Who funds THE JOHNS HOPKINS HOSPITAL ↗
- Who funds QUAIL VALLEY CHARITIES INC ↗
- Who funds LITTLE SISTERS OF JESUS AND MARY INC ↗
- Who funds SALISBURY UNIVERSITY FOUNDATION INC ↗
- Who funds RUBICON PRODUCTIONS INC ↗
- Who funds WILLIAM WENDT CENTER FOR LOSS AND HEALING ↗
- Who funds B&O RAILROAD MUSEUM INC ↗
- Who funds CALVERT SCHOOL INCORPORATED ↗
- Who funds BALTIMORE EDUCATIONAL SCHOLARSHIP TRUST ↗
- Who funds BALLET VERO BEACH INC ↗
- Who funds THE BOYS AND GIRLS CLUBS OF METROPOLITAN BALTIMORE ↗
- Who funds KENT ASSOCIATION OF RIDING THERAPY INC ↗
- Who funds THE VALLEYS PLANNING COUNCIL INC ↗
- Who funds MARYLAND HORSE FOUNDATION INC ↗
- Who funds CAESAR RODNEY INSTITUTE ↗
- Who funds ST MICHAELS FIRE DEPARTMENT 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: Baltimore Community Foundation Inc · T Rowe Price Program for Charitable Giving Inc · Brown Advisory Charitable Foundation Inc · The United Way of Central Maryland Inc · The Marion I & Henry J Knott Foundation Inc · France-Merrick Foundation Inc · The Bunting Family Foundation · The Thomas B and Elizabeth M Sheridan Foundation Inc · The Charles T Bauer Charitable Foundation · Mary Jean and Oliver Travers Foundation Inc · Campbell Foundation Inc · The Kahlert 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 Thomas F & Clementine L Mullan 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, a single department, or state — and drag the year to watch it move.
- Land Preservation Trust Inc — 64% of income from government
- First Fruits Farm Inc — 26% of income from government
- Young Men's Christian Association of Central Maryland Inc — 22% of income from government
- Johns Hopkins University — 12% of income from government
- Maryland Historical Society Inc — 9% of income from government
- The Family Tree Inc — 9% of income from government
- B&o Railroad Museum Inc — 7% of income from government
- The Shriners' Hospital for Children — 6% of income from government
- The Boys and Girls Clubs of Metropolitan Baltimore — 2% of income from government
- Chesapeake Bay Foundation Inc — 2% of income from government
- Waterfront Partnership of Baltimore Inc — 2% of income from government
- The United Way of Central Maryland Inc — 2% of income from government
- Arts for Learning Maryland Inc — 1% of income from government
- Salisbury University Foundation Inc — 0% of income from government
- Indian River Land Trust Inc — 0% of income from government
- Gilchrist Hospice Care Inc — 0% of income from government
- Ballet Vero Beach Inc — 0% of income from government
- The Johns Hopkins Hospital — 0% of income from government
- Mcdonogh School Incorporated — 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
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Find your warmest path to The Thomas F & Clementine L Mullan 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.