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Tamkin Foundation Inc at a glance

· 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.

$175k
Granted FY2024still arriving
4
Grants FY2024still arriving
3
States reached
$50k
Largest
01What it fundsRead
02The needRead
03Its fieldRead
01What it funds
0195% classified

What it funded, over time

Every grant placed by its stated purpose and the recipient’s mission, by year, FY2017 to 2024.

Health$115kArts & Culture$65kScience & Tech$54kRecreation & Sports$50kCommunity Improvement$50kPublic Safety & Disaster$50kSocial Science$50kReligion$50kOther$0
02FY2024 · 4 grants

Where the money goes

Grants by size, and the largest recipients.

By grant size · FY2024

  • $10k–50k1 grant · $25k
  • $50k–250k3 grants · $150k
$50,000
Median grant
3
States reached
$3.1M
Total assets
Largest grants
RecipientAmount
AORA FOUNDATION$50,000
STEPHEN WISE TEMPLE$50,000
SALK INSTITUTE$50,000
UTAH FESTIVAL OPERA & MUSICAL THEATRE$25,000
02The need
03

Does the money reach high-need areas?

Each grant placed by the hardship in its grantee’s ZIP, against the area’s typical level.

show:

Its 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. Its grants skew toward lower-need ZIPs.

area typical 11%NEW ENGLAND VILLAGE INC: $10k → 8%ISRAEL SPECIAL KIDS FUND: $5k → 14%0%20%40%50%more need →
grant to an above-average-need area below average· circle size = grant amount
How this is measured
Matched: human-services grants are those whose grantee’s IRS cause code is Human Services. Placed by people below the poverty line in the grantee’s ZIP, averaged from the tracts in that ZIP.

Which US states its grants reach

NY
MA
PA
CA
UT
VA
MD
TX
How this is measured
US grants placed by each grantee’s ZIP, which can differ from where services are delivered. Need from public data (U.S. Census/ACS, CDC PLACES, Eviction Lab, USDA), shown as context about the area, never attributed to the funder’s giving.
03Its field

Closest unfunded matches

The nonprofits that most resemble its grantees but are not funded by it, scored along the direction from the rest of the field toward the portfolio. A resemblance in what they say they do, not a recommendation.

1
Arc Research Institute

Our mission is to accelerate scientific progress, understand the root causes of disease, and narrow the gap between discoveries and impact on patients.

Health
2
Als One Inc

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…

Health
3
Target Als Foundation Inc

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…

Education
4
Arthritis Foundation Inc

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.

Health
5
Parkinson's Foundation Inc

Make life better for people with parkinson's disease by improving care and advancing research toward a cure.

Health
6
American Academy of Neurology

The Academy's mission is to enhance member career fulfillment and promote brain health for all.

Community Improvement
7
Paralyzed Veterans of America Spinal Cord Research Foundation

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…

—
8
Arthritis National Research Foundation

To provide initial research funding to brilliant, investigative scientists with new ideas to cure arthritis and related autoimmune diseases.

Health
9
American College of Radiology Foundation

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.

Philanthropy
10
American College of Rheumatology Inc

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…

—
11
Alliance for Aging Research

The alliance for aging research is the leading nonprofit organization dedicated to changing the narrative to achieve healthy aging and equitable access to care.

—
12
Massachusetts Institute of Technology

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.

Education
How this is measured
The grantee most central to the portfolio’s shape is Amyotrophic Lateral Sclerosis Assn; 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.
04the grantee network

13 grantees tracked through their own filings, 2017–2025.

Each grant beside the grantee’s revenue from every source, year by year.

How this is measured

Counted here: distinct organizations funded across 2017 to 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.

Each grantee is resolved to its own IRS returns. Association, dated; never a causal claim.

0
Load-bearing (≥25% of a budget)
4
Early backer (in before they grew)
12/13
Grantees still filing
11/13
Grew since first funded

Where the money sits, by cause and then by grantee

STEPHEN S WISE TEMPLE: $50,000 · OtherSTEPHEN S WISE TEMPLESALK INSTITUTE: $50,000 · OtherSALK INSTITUTECITY OF HOPE: $50,000 · OtherCITY OF HOPEJDC: $50,000 · OtherJDCVALLEY FLYERS FOUNDATION INC: $50,000 · OtherVALLEY FLYERS FOUNDATION INC9-11 GARDEN OF REFLECTION: $40,000 · Other9-11 GARDEN OF REFLECTIONHARVARD COLLEGE: $39,886 · OtherHARVARD COLLEGEUTAH FESTIVAL OPERA & MUSICAL THEATRE: $25,000 · OtherUTAH FESTIVAL OPERA & MUSICAL THEATRE+1 more: $10,000 · OtherREACH INC: $25,000 · HealthREACH INCTHE MICHAEL J FOX FOUNDATION FOR PARKINSON'S RESEARCH: $25,000 · HealthTHE MICHAEL J FOX F…PANCREATIC CANCER ACTION NETWORK INC: $20,000 · HealthPANCREATIC CANCER A…AMYOTROPHIC LATERAL SCLEROSIS ASSN: $10,000 · HealthAMYOTROPHIC LATERAL…FRIENDS OF MALIBU URGENT CARE CENTER: $10,000 · HealthFRIENDS OF MALIBU U…American Heart Association Inc: $10,000 · HealthAmerican Heart Asso…THE AOPA FOUNDATION INC: $50,000 · Public Safety & DisasterTHE AOPA …AMERICA GIVES INC: $25,000 · PhilanthropyNEW ENGLAND VILLAGE INC: $10,000 · Human ServicesISRAEL SPECIAL KIDS FUND: $5,000 · Human ServicesPresident and Fellows of Harvard College: $14,550 · Education
Other$364,886Health$100,000Public Safety & Disaster$50,000Philanthropy$25,000Human Services$15,000Education$14,550

Each grantee by its size and the funder’s share of it; top left is load-bearing

25%50%75%100%$1.0M$10M$100Mgrantee revenue →↑ funder's share of their budgetTHE AOPA FOUNDATION INC: $50,000 over 1y, 0.3% of budgetAMERICA GIVES INC: $25,000 over 1y, 0.3% of budgetREACH INC: $25,000 over 1y, 0.3% of budgetTHE MICHAEL J FOX FOUNDATION FOR PARKINSON'S RESEARCH: $25,000 over 1y, 0.0% of budgetPANCREATIC CANCER ACTION NETWORK INC: $20,000 over 1y, 0.0% of budgetPresident and Fellows of Harvard College: $14,550 over 1y, 0.0% of budgetARC MASSACHUSETTS INC: $10,000 over 1y, 0.6% of budgetAMYOTROPHIC LATERAL SCLEROSIS ASSN: $10,000 over 1y, 0.0% of budgetNEW ENGLAND VILLAGE INC: $10,000 over 1y, 0.1% of budgetFRIENDS OF MALIBU URGENT CARE CENTER: $10,000 over 1y, 4.6% of budgetAmerican Heart Association Inc: $10,000 over 1y, 0.0% of budgetISRAEL SPECIAL KIDS FUND: $5,000 over 1y, 0.9% of budget
Grantee by grantee: a decade per organization, before and after funding

A decade per grantee: revenue shaded, grants as bars, all rows on one timeline.

Co-funders

Grantmakers whose grantees overlap with this funder’s far more than size alone predicts. Closer means stronger alignment; arcs show where they also fund each other. Here they form a tightly interlocked group: most of these funders back each other's grantees too.

Morgan Stanley Global…National Philanthropi…Donor Advised Charita…Fidelity Investments …Amazonsmile Foundation
Morgan Stanley Global Impact Funding Trust IncIN9.6× affinity4 shared granteesties to 4 of 4Hover any node to trace its alignments.Compare side by side →

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

How this is measured
Affinity is a Gamma-Poisson posterior co-funding rate, re-centered on the typical rate, so thin evidence shrinks toward no signal. Overlap is association, not proof of shared intent.

How much its grantees rely on government

Each dot is one organization Tamkin Foundation Inc funds: left to right is the share of its income from government, bottom to top the share from Tamkin Foundation Inc. Bigger dots raise more.

2024
’20’21’22’23’24’25
no gov · 20%0%1%3%5%funder's share of their income ↑0%25%50%75%100%share of the org’s income from government →median 85%
  • 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
no gov moneyreceives it· size = income
2get no government money at all
1report government grants on their 990 we could not trace to a source (not plotted)
3rely on government for over half their income
typical government reliance, FY20–25
How this is measured
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 a grant caused the public funding. Coverage is precision-first, a floor rather than 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 to 24 months.

On method. Every financial figure here is read from IRS e-file XML, the funder’s own 990/990-PF, and from the multi-year returns of the 20 grantees we resolved, each linked to its source. Grantee outcomes are each organization’s own program-service reporting (Form 990, Part III), read as association with funding, never as caused by it. Low-confidence name matches are suppressed rather than guessed. How we build these →

How this is measured
Each figure carries one of six labels. Filed is what the funder reported on its return. Official is another government record about an organization, such as a federal award or a charity register, joined by name where no shared identifier exists. Resolved is an identity we worked out where the filing named a recipient without an EIN, kept only above a measured confidence threshold. Computed is arithmetic over those, like themes, portfolio clusters and co-funder strength. Context is a statistic about a place rather than about an organization, which is what the need overlay is: it describes the area a grantee’s address sits in, not where its work lands. Inferred is drawn by a model from text, like the partnerships read out of public news and organization websites. Each is labeled where it appears.

Generated from the IRS Form 990-PF e-file return for fiscal year 2024, released 2024. Filings run roughly 12 to 24 months behind; figures are dated accordingly.

Source object · view filing

Play a game based on Tamkin’s filings →

More from the funding graph

The unnamed billions
grants reported with no recipient in the public record
The regranting layer
51% of grant dollars land in the regranting layer
The DAF merry-go-round
$9.7B circulates between donor-advised funds
The endowment market
who holds foundation money, and what just moved
The camps
funders cluster by geography, not ideology
By state
where grant money is based, and what stays home