· Private foundation
Harry & Beatrice Sley Foundation
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 FY2017–2025.
Where the money goes
Your grants by size, and where they go.
By grant size · FY2025
- Under $10k24 grants · $30k
- $10k–50k2 grants · $32k
| Recipient | Amount |
|---|---|
| Giffords Law Center | $21,500 |
| Church of the Redeemer | $10,000 |
| International Myeloma Foundation | $9,250 |
| US Holocaust Memorial Museum | $5,500 |
| Washington Hebrew Congregation | $3,900 |
| Maccabi USA | $1,800 |
| McLean Projects for the Arts | $1,350 |
| Arena Stage | $1,200 |
| The Lab School | $1,100 |
| Imagination Stage | $1,000 |
| Manassas Ballet Theatre | $1,000 |
| Har Shalom | $960 |
| First Descents | $520 |
| Alzheimers Association | $500 |
| Defiant Requim Foundation | $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 (FY23–25, $425) land where the poverty rate runs at 8%, against an area that typically sits at 11%. 0% 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.
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 +28% since the first grant, against +26% for the ones you funded once.
28 repeat relationships — 16 still active in FY2025, 12 since wound down; 10 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, 58% of grant dollars renewed an existing relationship; $26k 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
DUKE UNIVERSITY6× · 2017–2022 · $36k · revenue +51%- TUThe United States Holocaust Memorial Museum4× · 2017–2025 · $17k · revenue +9%
- IMINTERNATIONAL MYELOMA FOUNDATION2× · 2017–2025 · $10k · revenue +17%
Funded once
- JFJohn F Kennedy Center for Performing Artsone grant, 2017 · $14k
FRIENDS OF THE ISRAEL DEFENSE FORCESone grant, 2023 · $8k · revenue -33%- PPIONEERSone grant, 2018 · $2k
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…
Leadership in the prevention, treatment, and cure of cancer through excellence, vision and cost effectiveness in patient care, outreach programs, research, and education.
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 dfci is to provide expert, compassionate, and equitable care to children, adults, and their families, while advancing the understanding, diagnosis, treatment, cure, and prevention of cancer and related diseases. we train new…
Fred hutch cancer center ("fred hutch") unites innovative research and compassionate care to prevent and eliminate cancer and infectious disease. continued on schedule o
Sibley memorial hospital in washington, d.c., a member of johns hopkins medicine, has a distinguished history of serving the community since its founding in 1890. as a not-for-profit, full-service community hospital, sibley offers…
Operate a state-of-the-art, world-class genomic research center that creates and uses advanced genomics to understand the genetic basis of disease. for more information, see schedule o.
Nyu is a private university with approximately 60,000 matriculating students in 20 schools and institutes. nyu's primary missions are education, research and scholarship, and patient care.
Susan g. komen 's mission is to save lives by meeting the most critical needs in our communities & investing in breakthrough research to prevent & cure breast cancer.
Please see schedule o
The hugo w. moser research institute at kennedy krieger, inc. (the "research institute") is an internationally recognized research facility finding answers to problems and injuries that affect a child's developing brain. researchers have…
The purposes of the laboratory are scientific, medical, charitable, and educational. our mission is to discover precise genomic solutions for disease and empower the biomedical community.
For reference, the grantee most central to the portfolio’s shape is Sibley Memorial Hospital Foundation and the most unlike its peers is Morgan Pressel Foundation 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 45 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 12% 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.
41 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. 41 of the 65 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 DUKE UNIVERSITY ↗
- Who funds The United States Holocaust Memorial Museum ↗
- Who funds INTERNATIONAL MYELOMA FOUNDATION ↗
- Who funds IMAGINATION STAGE INC ↗
- Who funds FRIENDS OF THE ISRAEL DEFENSE FORCES ↗
- Who funds MACCABI USA INC ↗
- Who funds CYSTIC FIBROSIS FOUNDATION ↗
- Who funds BLOOD CANCER UNITED INC ↗
- Who funds FIRST DESCENTS ↗
- Who funds ALZHEIMER'S DISEASE & RELATED DISORDERS ASSOCIATION INC ↗
- Who funds MCLEAN PROJECT FOR THE ARTS ↗
- Who funds SIBLEY MEMORIAL HOSPITAL FOUNDATION ↗
- Who funds WASHINGTON DRAMA SOCIETY INC ↗
- Who funds COLORECTAL CANCER ALLIANCE ↗
- Who funds THE LAB SCHOOL OF WASHINGTON ↗
- Who funds ALZHEIMER'S DRUG DISCOVERY FOUNDATION ↗
- Who funds MANASSAS PERFORMING ARTS INC ↗
- Who funds Jewish Women International ↗
- Who funds THE WASHINGTON BALLET ↗
- Who funds The Defiant Requiem Foundation ↗
- Who funds Morgan Pressel Foundation Inc ↗
- Who funds CABIN JOHN PARK VOLUNTEER FIRE DEPARTMENT INC ↗
- Who funds MAIN STREET CONNECT INC ↗
- Who funds SAVE A CHILD'S HEART FOUNDATION US INC ↗
- Who funds HOSPICE OF THE CHESAPEAKE 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: Greater Washington Community Foundation · The Dorothy G Bender Foundation Inc · Elno Family Foundation Inc · Reinsch Pierce Family Foundation Inc · Sami & Annie Totah Family Foundation · Clark-Winchcole Foundation · The Morris and Gwendolyn Cafritz Foundation · Ge Aerospace Foundation · Vanguard Charitable Endowment Program · American Endowment Foundation · National Philanthropic Trust · Morgan Stanley Global Impact Funding Trust 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 Harry & Beatrice Sley 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.
- Imagination Stage Inc — 13% of income from government
- Chesapeake Bay Foundation Inc — 2% 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.