· Private foundation
Marjorie W Sloper Charitable 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 FY2017–2024.
Where the money goes
Your grants by size, and where they go.
By grant size · FY2024
- Under $10k14 grants · $35k
- $10k–50k1 grant · $10k
| Recipient | Amount |
|---|---|
| DANA FARBER CANCER INSTITUTE | $10,000 |
| OFFICER HAROLD VITALE MEMORIAL FUND | $5,300 |
| NATIONAL MULTIPLE SCLEROSIS | $5,000 |
| WILDCAT RUN CHARITABLE FOUNDATION | $5,000 |
| OUR LADY OF LIGHT PARISH | $3,500 |
| BENTLEY UNIVERSITY | $3,000 |
| BETH ISRAEL LAHEY MEDICAL CENTER | $3,000 |
| WINDWARD SAILS CHARITABLE FOUNDATION | $2,500 |
| NATIONAL KIDNEY FOUNDATION OF FLORIDA | $1,500 |
| WOUNDED WARRIOR PROJECT | $1,000 |
| BOSTON CHILDREN'S HOSPITAL TRUST | $1,000 |
| ALZHEIMERS ASSOCIATION MASS CHAPTER | $1,000 |
| SHRINERS HOSPITAL | $1,000 |
| JOSLIN DIABETES CENTER | $1,000 |
| TUNNEL TO TOWERS FOUNDATION | $1,000 |
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 (FY17–24, $8k) land where the poverty rate runs at 12%, against an area that typically sits at 9%. 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.
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 +69% since the first grant, against +36% for the ones you funded once.
19 repeat relationships — 15 still active in FY2024, 4 since wound down.
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, 100% of grant dollars renewed an existing relationship; $0 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
Dana-Farber Cancer Institute Inc8× · 2017–2024 · $55k · revenue +132%- WRWILDCAT RUN CHARITABLE FOUNDATION INC7× · 2017–2024 · $25k · revenue +146%
BENTLEY UNIVERSITY8× · 2017–2024 · $22k · revenue +39%
Funded once
- IGIndividual grant recipientone grant, 2017 · $1k
- MCMARIE C PETRILLI MEMORIAL FUNDone grant, 2018 · $1k
- SAST ANNE'S PARISHone grant, 2019 · $1k
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.
For more than 125 years, the mission of the johns hopkins hospital has been to lead the world in the diagnosis and treatment of disease and to train tomorrow's great physicians, nurses and scientists. above all, we aim to provide the…
To provide the highest quality specialty medical care to patients with diabetes and diabetes related conditions and to search for a cure.
The mission of winchester hospital is "to care. to heal. to excel." this ethos provides each and every staff member with clear expectations, promoting teamwork and respect while ensuring safety, quality and empathy for patients. winchester…
Leadership in the prevention, treatment, and cure of cancer through excellence, vision and cost effectiveness in patient care, outreach programs, research, and education.
Mass general brigham incorporated is developing an integrated health care delivery system throughout the region that offers patients a continuum of coordinated, high-quality care.
The mission of the beth israel deaconess hospital-milton, inc. (bid-milton or hospital) is to provide safe, high-quality, community-based health care and access to tertiary care in close collaboration with its sister hospital, beth israel…
Tertiary care academic medical center
Beth israel lahey health inc.'s mission is to support its affiliates and their healthcare missions, to improve the health of patients, their families and the communities served and as a network its purpose is to create healthier…
Sanford burnham prebys medical discovery institute's mission is to advance the biomedical sciences by cultivating the next generation of scientific leaders, providing meaningful opportunities for researchers of all backgrounds to learn,…
The mission of the beth israel deaconess hospital-plymouth, inc. (bid-plymouth or hospital) is to improve the health and well-being of its patients and communities by providing a full continuum of healthcare services with excellence and…
Western new england university, a comprehensive private institution with a tradition of excellence in teaching and scholarship and a commitment to service, awards undergraduate, master's, and doctoral degrees in various departments from…
The mission of anna jaques hospital (ajh or hospital) is to provide the highest quality medical care and improve the health of the communities served by ajh in alliance with the ajh medical staff and ajh affiliates including seacoast…
For reference, the grantee most central to the portfolio’s shape is Wounded Warrior Project Inc and the most unlike its peers is Dana-Farber Cancer Institute Inc. Resemblance is measured on each organization’s own IRS 990 mission text; it reflects how work is described, not its quality or impact.
10 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. 10 of the 23 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 Dana-Farber Cancer Institute Inc ↗
- Who funds WILDCAT RUN CHARITABLE FOUNDATION INC ↗
- Who funds BENTLEY UNIVERSITY ↗
- Who funds JOSLIN DIABETES CENTER INC ↗
- Who funds WOUNDED WARRIOR PROJECT INC ↗
- Who funds Children's Hospital Corporation ↗
- Who funds NATIONAL KIDNEY FOUNDATION OF FLORIDA INC ↗
- Who funds WINDWARD SAILS CHARITABLE FOUNDATION INC ↗
- Who funds STEPHEN SILLER TUNNEL TO TOWERS FOUNDATION ↗
- Who funds BOURQUE FAMILY FOUNDATION 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: 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 Marjorie W Sloper Charitable 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, a single department, or state — and drag the year to watch it move.
- Joslin Diabetes Center Inc — 35% of income from government
- Children's Hospital Corporation — 10% of income from government
- Dana-Farber Cancer Institute Inc — 7% of income from government
- Bentley University — 1% of income from government
- Wounded Warrior Project 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.