· Private foundation
Mary K O'Neill 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
Every grant placed by its stated purpose and the recipient’s mission, by year — across FY2020–2025.
Where the money goes
Your grants by size, and where they go.
By grant size · FY2025
- Under $10k3 grants · $15k
- $10k–50k7 grants · $85k
| Recipient | Amount |
|---|---|
| KENNEDY KRIEGER FOUNDATION | $20,000 |
| JEMICY SCHOOL | $15,000 |
| HARFORD FAMILY HOUSE | $10,000 |
| AMERICAN RED CROSS | $10,000 |
| BOYS & GIRLS CLUB OF HARFORD COUNTY | $10,000 |
| INNER COUNTY OUTREACH | $10,000 |
| THE LEGACY SCHOOL | $10,000 |
| Individual grant recipient | $5,000 |
| ST JUDE CHILDREN'S RESEARCH HOSP | $5,000 |
| TUNNEL TO TOWERS FOUNDATION | $5,000 |
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 (FY20–25, $100k) land where the poverty rate runs at 7%, against an area that typically sits at 10%. 2% of those dollars go to grantees based in above-average-need neighborhoods. Your grants skew toward lower-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.
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.
13 repeat relationships — 8 still active in FY2025, 5 since wound down; 2 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, 85% of grant dollars renewed an existing relationship; $15k 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
- ICINNER COUNTY OUTREACH INC6× · 2020–2025 · $98k · revenue +103%
- KKKENNEDY KRIEGER FOUNDATION INC3× · 2023–2025 · $75k · revenue +10%
- HFHARFORD FAMILY HOUSE INC6× · 2020–2025 · $60k · revenue +178%
Funded once
- BGBOYS & GIRLS CLUB OF METRO BALTone grant, 2021 · $15k
- UHUCCA - HUMANITARIAN AID FOR UKRAINEone grant, 2022 · $10k
- SSSTUDENT SUPPORT NETWORK INCgraduatedone grant, 2020 · $5k · revenue +247%
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.
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…
Mclean school's small classes and abilities model prepare bright students in kindergarten through twelfth grade, including those with dyslexia, anxiety, and attention issues, for college success.
See schedule othe marine corps scholarship foundation is the nation's oldest and largest provider of need-based scholarships to military children. founded in 1962, the marine corps scholarship foundation provides access to education for…
To serve as the sole member of the various health care and supporting organizations that comprise st. mary's healthcare system for children
Ronald mcdonald house charities of greater washington, dc (rmhcdc) provides essential services that remove barriers, strengthen families, and promote healing when children need healthcare.
The mission of the institute is to translate basic genetic and molecular mechanisms of schizophrenia and related developmental brain disorders into clinical advances that change the lives of affected individuals. it is catalyzing a new…
St. mary's hospital for children ("smh"), the flagship of st. mary's healthcare system for children, is committed to improving the health and quality of life for children and young adults with special healthcare needs. a nationally…
To teach children the values and life skills necessary for a successful life, one filled with caring, contribution and commitment, empowering each child with: the vision to see opportunity within adversity and the value of setting ideals…
Csfb awards kindergarten to 8th grade scholarships to low income baltimore city families without regard to gender, race, grades or test scores, ethnicity or religious belief.
Provide behavioral health services to children and their families. the range of services include case management, outpatient, in school, community based and wrap around services.
Serving the interests of independent higher education and supporting the work of campus leaders throughout the state of maryland.
The seed school of maryland (seed maryland) is a statewide, public, college-preparatory boarding school offering an extraordinary learning and living experience in preparation for college and beyond. the maryland general assembly passed…
For reference, the grantee most central to the portfolio’s shape is Marine Toys for Tots Foundation and the most unlike its peers is Inner County Outreach Inc. Resemblance is measured on each organization’s own IRS 990 mission text; it reflects how work is described, not its quality or impact.
14 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. 14 of the 22 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 INNER COUNTY OUTREACH INC ↗
- Who funds KENNEDY KRIEGER FOUNDATION INC ↗
- Who funds HARFORD FAMILY HOUSE INC ↗
- Who funds THE LEGACY SCHOOL ↗
- Who funds BOYS AND GIRLS CLUBS OF HARFORD AND CECIL COUNTIES INC ↗
- Who funds ST JUDE CHILDREN'S RESEARCH HOSPITAL INC ↗
- Who funds THE MARYLAND FOOD BANK INC ↗
- Who funds THE JEMICY SCHOOL INC ↗
- Who funds MASONIC CHARITIES OF MARYLAND INC ↗
- Who funds American National Red Cross & Its Constituent Chapters and Branches ↗
- Who funds STUDENT SUPPORT NETWORK INC ↗
- Who funds STEPHEN SILLER TUNNEL TO TOWERS FOUNDATION ↗
- Who funds MARINE TOYS FOR TOTS FOUNDATION ↗
- Who funds SANTA CLAUS ANONYMOUS 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: Herman & Walter Samuelson Foundation Inc · The United Way of Central Maryland Inc · Louis & Phyllis Friedman Foundation Inc · Fidelity Investments Charitable Gift Fund · Amazonsmile 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 Mary K O'Neill 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.
- Harford Family House Inc — 10% 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 Mary K O'Neill Foundation Inc?
Find your warmest path to Mary K O'Neill 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.