· Private foundation
Tamkin Foundation Inc
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
- $10k–50k1 grant · $25k
- $50k–250k3 grants · $150k
| Recipient | Amount |
|---|---|
| AORA FOUNDATION | $50,000 |
| SALK INSTITUTE | $50,000 |
| STEPHEN WISE TEMPLE | $50,000 |
| UTAH FESTIVAL OPERA & MUSICAL THEATRE | $25,000 |
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 (FY17–23, $15k) land where the poverty rate runs at 10%, against an area that typically sits at 11%. 33% 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.
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.
Our mission is to accelerate scientific progress, understand the root causes of disease, and narrow the gap between discoveries and impact on patients.
The organization is a partnership of world leaders in als research and care focused on expediting breakthrough treatments and ultimately a cure for als while providing resources and equipment to those living with the disease now. the team…
Our mission is to break down barriers to als research to find effective treatments. by uniting academia, the pharma and biotech industry, government, venture capital, related nonprofits, and the als community, we aim to overcome the…
The arthritis foundation is boldly pursuing a cure for america's #1 cause of disability, while championing the fight against arthritis with life-changing resources, science, advocacy, and community connections.
Make life better for people with parkinson's disease by improving care and advancing research toward a cure.
The Academy's mission is to enhance member career fulfillment and promote brain health for all.
Pva research foundation inc., a non-profit organization founded in washington, dc in 1976, is controlled by the paralyzed veterans of america ("pva"), a national organization chartered by the u.s. congress on august 11, 1971. pva research…
To provide initial research funding to brilliant, investigative scientists with new ideas to cure arthritis and related autoimmune diseases.
The mission of the acr foundation is to advance the profession and practice of radiology to benefit patients with a specific emphasis on health policy research.
The american college of rheumatology is an organization of and for physicians, health professionals, and scientists that advances rheumatology through programs of education, research, advocacy and practice support that foster excellence in…
The alliance for aging research is the leading nonprofit organization dedicated to changing the narrative to achieve healthy aging and equitable access to care.
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.
For reference, the grantee most central to the portfolio’s shape is Amyotrophic Lateral Sclerosis Assn and the most unlike its peers is Valley Flyers 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.
13 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. 13 of the 20 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 AOPA FOUNDATION INC ↗
- Who funds VALLEY FLYERS FOUNDATION INC ↗
- Who funds AMERICA GIVES INC ↗
- Who funds THE MICHAEL J FOX FOUNDATION FOR PARKINSON'S RESEARCH ↗
- Who funds REACH INC ↗
- Who funds PANCREATIC CANCER ACTION NETWORK INC ↗
- Who funds President and Fellows of Harvard College ↗
- Who funds ARC MASSACHUSETTS INC ↗
- Who funds AMYOTROPHIC LATERAL SCLEROSIS ASSN ↗
- Who funds NEW ENGLAND VILLAGE INC ↗
- Who funds FRIENDS OF MALIBU URGENT CARE CENTER ↗
- Who funds American Heart Association Inc ↗
- Who funds ISRAEL SPECIAL KIDS FUND ↗
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: Morgan Stanley Global Impact Funding Trust Inc · National Philanthropic Trust · 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 Tamkin 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.
- Arc Massachusetts Inc — 100% of income from government
- Reach Inc — 85% of income from government
- New England Village Inc — 68% of income from government
- President and Fellows of Harvard College — 7% 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.