· Private foundation
Arthur & Linda Gelb 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
By grantee IRS cause code (NTEE).
A cause breakdown isn’t shown here: 80% of ARTHUR & LINDA GELB CHARITABLE FOUNDATION’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 $10k2 grants · $1k
- $250k+1 grant · $581k
| Recipient | Amount |
|---|---|
| FIDELITY GIFT FUND | $580,638 |
| 2 LIFE COMMUNITIES | $1,000 |
| Individual grant recipient | $11 |
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 (FY20–23, $11k) 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 +38% since the first grant, against +22% for the ones you funded once.
21 repeat relationships — 0 still active in FY2024, 21 since wound down; 3 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, 0% of grant dollars renewed an existing relationship; $582k 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
- CFCOMMITTEE FOR ACCURACY IN MIDDLE EAST REPORTING IN AMERICA INC5× · 2017–2023 · $25k · revenue +85%
- MEMIDDLE EAST MEDIA AND RESEARCH INSTITUTE INC4× · 2017–2022 · $20k · revenue +52%
Dana-Farber Cancer Institute Inc4× · 2017–2022 · $10k · revenue +132%
Funded once
- BIBETH ISRAEL DEACONESS MEDICAL CENTER INCgraduatedone grant, 2020 · $3k · revenue +50%
- TBTEMPLE BETH ELOHIMone grant, 2023 · $3k
- JFJEWISH FAMILY & CHILDREN'S SERVICE INCone grant, 2023 · $3k · revenue +6%
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 mission of mit is to advance knowledge and educate students in science, technology, and other areas of scholarship that will best serve the nation and the world in the 21st century.
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.
The museum's mission statement is: "to discover, interpret, and disseminate - through scientific research and education - knowledge about human cultures, the natural world, and the universe."
The institute for advanced study (the institute) is one of the world's leading centers for theoretical research and intellectual inquiry. see schedule o.
The mission of lowell observatory is to pursue the study of astronomy, especially the study of our solar system and its evolution; to conduct pure research in astronomical phenomena; and to maintain quality public education and outreach…
The mission of the broad institute is to propel progress in biomedicine, through research aimed at the understanding and treatment of disease and the dissemination of scientific knowledge to the scientific community to benefit the public.…
THE MASSACHUSETTS EYE AND EAR INFIRMARY ("THE INFIRMARY") IS A NOT-FOR-PROFIT TEACHING HOSPITAL CONDUCTING PATIENT CARE AND RESEARCH. THE INFIRMARY IS A TEACHING HOSPITAL OF HARVARD MEDICAL SCHOOL AND AN INTERNATIONAL CENTER FOR RESEARCH.…
Mission strengthened by more than a century and a half of dedication to academic excellence, boston college commits itself to the highest standards of teaching and research in undergraduate, graduate and professional programs and to the…
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.
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,…
See Form 990, Part I, Line 1, Description of Organization Mission.
Please see schedule o
For reference, the grantee most central to the portfolio’s shape is American Committee for the Weizmann Institute of Science Inc and the most unlike its peers is Americans for Peace and Tolerance Inc. 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 59 years old; the field is 17. You back the established end — and your money leans older still.
The field is 19% 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 11% 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.
23 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. 23 of the 42 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 AMERICAN ACADEMY OF ARTS & SCIENCES ↗
- Who funds AMERICANS FOR PEACE AND TOLERANCE INC ↗
- Who funds COMMITTEE FOR ACCURACY IN MIDDLE EAST REPORTING IN AMERICA INC ↗
- Who funds MIDDLE EAST MEDIA AND RESEARCH INSTITUTE INC ↗
- Who funds Dana-Farber Cancer Institute Inc ↗
- Who funds Combined Jewish Philanthropies of Greater Boston Inc ↗
- Who funds The Childrens Room Center for Grieving Children ↗
- Who funds BOSTON SYMPHONY ORCHESTRA INC ↗
- Who funds ANTI-DEFAMATION LEAGUE ↗
- Who funds AMERICAN COMMITTEE FOR THE WEIZMANN INSTITUTE OF SCIENCE INC ↗
- Who funds BETH ISRAEL DEACONESS MEDICAL CENTER INC ↗
- Who funds JEWISH FAMILY & CHILDREN'S SERVICE INC ↗
- Who funds MUSEUM OF SCIENCE ↗
- Who funds WOODS HOLE OCEANOGRAPHIC INSTITUTION ↗
- Who funds 2LIFE COMMUNITIES INC ↗
- Who funds THE CITY COLLEGE FUND ↗
- Who funds President and Fellows of Harvard College ↗
- Who funds PROSTATE CANCER FOUNDATION ↗
- Who funds Woodwell Climate Research Center Inc ↗
- Who funds CRADLES TO CRAYONS INC ↗
- Who funds WADE INSTITUTE FOR SCIENCE EDUCATION INC ↗
- Who funds THE AMERICAN TINNITUS ASSOCIATION ↗
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: Donor Advised Charitable Giving 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 Arthur & Linda Gelb 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.
- Woods Hole Oceanographic Institution — 63% of income from government
- Trustees of Boston University — 12% of income from government
- Woodwell Climate Research Center Inc — 11% of income from government
- 2LIFE Communities Inc — 8% of income from government
- President and Fellows of Harvard College — 7% of income from government
- Dana-Farber Cancer Institute Inc — 7% of income from government
- Beth Israel Deaconess Medical Center Inc — 6% of income from government
- American Academy of Arts & Sciences — 3% of income from government
- Cradles to Crayons Inc — 2% of income from government
- Jewish Family & Children's Service Inc — 1% of income from government
- Boston Symphony Orchestra Inc — 0% of income from government
- Museum of Science — 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
How do I get to Arthur & Linda Gelb Charitable Foundation?
Find your warmest path to Arthur & Linda Gelb Charitable Foundation 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.