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David & Sylvia Weisz Foundation at a glance

· Private foundation

David & Sylvia Weisz 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.

$421k
Granted FY2025still arriving
92
Grants FY2025still arriving
13
States reached
$100k
Largest
01What it fundsRead
02The needRead
03Its granteesRead
04Its fieldRead
05Through PlinthRead
01What it funds
0199% classified

What it funded, over time

Every grant placed by its stated purpose and the recipient’s mission, by year, FY2017 to 2025.

Health$727kPhilanthropy$606kEnvironment$449kArts & Culture$441kHuman Services$387kAnimals$288kEducation$253kInternational$158kOther$0
02FY2025 · 92 grants

Where the money goes

Grants by size, and the largest recipients.

By grant size · FY2025

  • Under $10k80 grants · $142k
  • $10k–50k11 grants · $179k
  • $50k–250k1 grant · $100k
$1,100
Median grant
13
States reached
$6.7M
Total assets
Largest grants
RecipientAmount
CEDARS - SINAI$100,000
THE UCLA FOUNDATION$25,000
MUSEUM OF CRAFT AND DESIGN$25,000
PLANNED PARENTHOOD$25,000
JEWISH FEDERATION$25,000
CONCERN FOUNDATION$16,150
ACLU$13,000
VISTA DEL MAR$10,000
WORLD WILDLIFE FUND$10,000
LA REGIONAL FOOD BANK$10,000
WORLD CENTRAL KITCHEN$10,000
DOCTORS WITHOUT BORDERS$10,000
SPCALA$8,500
WOUNDED WARRIOR PROJECT$5,000
SANTA BARBARA MUSEUM OF ART$5,000
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 (FY17–25, $336k) land where the poverty rate runs at 14%, against an area that typically sits at 10%. 97% of those dollars go to grantees based in above-average-need neighborhoods. Most of its grants land in higher-need ZIPs.

area typical 10%WOUNDED WARRIOR PROJECT: $13k → 14%URBAN SPROUTS: $1k → 11%CHH FOUNDATION INC: $3k → 5%GUIDING EYES FOR THE BLIND: $1k → 9%WOUNDED WARRIOR PROJECT: $10k → 14%GUIDING EYES FOR THE BLIND: $500 → 9%WOUNDED WARRIOR PROJECT: $5k → 14%WOUNDED WARRIOR PROJECT: $3k → 14%WOUNDED WARRIOR PROJECT: $3k → 14%JUNIOR BLIND OF AMERICA: $500 → 13%PUPPIES BEHIND BARS: $5k → 17%PUPPIES BEHIND BARS: $2k → 17%HELP OF OJAI: $2k → 10%HELP OF OJAI: $1k → 10%HELP OF OJAI: $1k → 10%HELP OF OJAI: $1k → 10%HELP OF OJAI: $500 → 10%AMERICAN RED CROSS: $5k → 14%AMERICAN RED CROSS: $5k → 14%WAYFINDER FAMILY SERVICES: $3k → 14%WAYFINDER FAMILY SERVICES: $1k → 14%WAYFINDER FAMILY SERVICES: $1k → 14%WAYFINDER FAMILY SERVICES: $625 → 14%WAYFINDER FAMILY SERVICES: $500 → 14%WAYFINDER FAMILY SERVICES: $500 → 14%WAYFINDER FAMILY SERVICES: $500 → 14%WAYFINDER FAMILY SERVICES: $500 → 14%LOS ANGELES MARYVALE GUILD: $500 → 14%LOS ANGELES MARYVALE GUILD: $500 → 14%LOS ANGELES ORPHANAGE GUILD: $2k → 14%WOUNDED WARRIOR PROJECT: $1k → 14%VISTA DEL MAR: $10k → 14%PATH: $6k → 14%PATH: $1k → 14%PATH: $1k → 14%PATH: $1k → 14%PATH: $1k → 14%PATH: $1k → 14%VISTA DEL MAR CHILD AND FAMILY SERVICES: $100k → 14%VISTA DEL MAR CHILD AND FAMILY SERVICES: $100k → 14%VISTA DEL MAR CHILD AND FAMILY SERVICES: $10k → 14%VISTA DEL MAR CHILD AND FAMILY SERVICES: $10k → 14%VISTA DEL MAR CHILD AND FAMILY SERVICES: $10k → 14%VISTA DEL MAR: $1k → 14%VISTA DEL MAR: $1k → 14%TRINITY YOUTH SERVICES: $3k → 14%TRINITY YOUTH SERVICES: $3k → 14%TRINITY YOUTH SERVICES: $2k → 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

VT
IL
WI
NY
MA
OR
IA
IN
OH
PA
CT
CA
UT
CO
MO
KY
VA
MD
AZ
KS
TN
SC
DC
LA
AL
GA
TX
FL
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.
04

Where the work is directed

The same grants placed two ways: where each recipient sits, and where its stated purpose sends the money.

About 92% of David & Sylvia Weisz Foundation’s grant dollars are earmarked for a different county than the recipient’s own address. By recipient address, 66% of the giving stays in CA; by stated purpose, 8%.

David & Sylvia Weisz Foundationlessmore of its giving
Placed by recipient address
How this is measured
Recipient view: each grant at its grantee’s ZIP, mapped to a county. Directed view: each grant at the county its stated purpose names, falling back to the recipient’s county when the purpose names no place; US grants only. A county shows only if it carries the top 95% of that view’s dollars. Purposes are read from the funder’s own 990 grant descriptions.
03Its grantees
repeat funding

Who it funds again

Organizations funded in more than one year, against those funded once.

94%of every dollar goes to organizations it has funded before.
$3.5M · 175 repeat orgs$218k to everyone else

Grantees it renews have grown median revenue +34% since the first grant, against +25% for those funded once.

175 repeat relationships: 75 still active in FY2025, 100 since wound down; 15 grantees were first funded in FY2025 (too recent to call).

How the two cohorts compare

Re-uppedFunded once

Organizations

175
90

Total granted

$3.5M
$195k

Median revenue growth · since first grant

+34%
+25%

Still filing today

65%
61%

New vs renewed · share of each year

In FY2025, 94% of grant dollars renewed an existing relationship; $22k went to new ones.

50%100%’17’18’19’20’21’22’23’24’25
RenewedFirst-time

Where new relationships form · theme of each grantee’s first grant

’17’18’19’20’21’22’23’24’25
Arts & CultureEnvironmentHealthHuman ServicesAnimalsEducationOther
How this is measured
First-time means a grantee’s first year in the filing window; renewed means funded in an earlier year too. The renewed share climbs naturally as a portfolio matures, so the signal is a year that bucks it (a wave of new grantees). 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

  • VD
    VISTA DEL MAR CHILD AND FAMILY SERVICES
    8× · 2017–2025 · $242k · revenue +19%
  • CF
    CONCERN FOUNDATION
    9× · 2017–2025 · $192k · revenue +30%
  • CEDARS-SINAI MEDICAL CENTER
    4× · 2018–2025 · $117k · revenue +52%

Funded once

  • RO
    REGENTS OF THE UNIVERSITY OF CALIFORNIA
    one grant, 2022 · $25k
  • IG
    Individual grant recipient
    one grant, 2018 · $17k
  • FH
    FACING HISTORY & OURSELVES INCgraduated
    one grant, 2023 · $10k · revenue +25%
How this is measured

Repeat means funded in two or more distinct years. Growth and survival are read from each grantee’s own subsequent IRS filings.

04Its 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
Friends of the Earth

Friends of the earth strives for a more healthy and just world by defendng the environment and human health while advancing social and economic justice by conducting research and education, transforming the economy so it protects the…

Environment
2
Oceana Inc

To advocate for policy changes by governments and corporations in order to preserve ocean life and return the oceans to their former abundance.

Environment
3
United States Naval Institute

Provide an independent forum for those who dare to read, think, speak, and write to advance the professional, literary, and scientific understanding of sea power and other issues critical to global security.

—
4
Rainforest Trust

Rainforest trust saves endangered wildlife and protects our planet by creating rainforest reserves through partnerships, community engagement, and donor support.

International
5
Academy of Television Arts and Sciences

The Television Academy is dedicated to celebrating excellence, innovation and the advancement of the telecommunications arts and sciences through recognition, education and leadership, while fostering a diverse, inclusive and accessible…

—
6
University of California Irvine Foundation

The mission of the university of california, irvine foundation (uc irvine foundation) is to raise and manage private funds to support uc irvine's broader mission of excellence in teaching, research and public service. to this end, the uc…

Education
7
American Association for the Advancement of Science

Advance science, engineering, and innovation throughout the world for the benefit of all. the world's largest multidisciplinary scientific society and a leading publisher of cutting-edge research through its science family of journals,…

Science & Tech
8
Los Angeles World Affairs Council and Town Hall

The organization is a non-partisan, membership based speakers' forum that connects business leaders, community members, and engaged individuals with shared interest in local, national, and global affairs. it provides an open and accessible…

International
9
The Jonsson Cancer Center Foundation

The jonsson cancer center foundation is the single most important vehicle for raising private funds for cancer research at ucla and plays a key role in advancing cancer treatments and care. please see schedule o for additional information.

—
10
The Water Research Foundation

The purpose of the water research foundation (wrf) is a definitive research organization to advance the science of all things water to better meet the evolving needs of its subscribers and the water sector. to engage exclusively in…

Environment
11
California Dental Association Foundation

The foundation's mission is to improve the oral health of all californians by supporting the dental profession and its efforts to meet community needs.

Science & Tech
12
The San Diego Foundation

The san diego foundation inspires enduring philanthropy and enables community solutions to improve the quality of life in our region.

Philanthropy
How this is measured
The grantee most central to the portfolio’s shape is Saint John's Health Center Foundation; the most unlike its peers is Ace of Hearts. Resemblance is measured on each organization’s own IRS 990 mission text; it reflects how work is described, not its quality or impact.
05the grantee network

184 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. 184 of the 286 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)
26
Early backer (in before they grew)
181/184
Grantees still filing
134/184
Grew since first funded

Where the money sits, by cause and then by grantee

THE JEWISH FEDERATION: $567,484 · OtherTHE JEWISH FEDERATIONPLANNED PARENTHOOD: $160,000 · OtherPLANNED PARENTHOODDISCOVERY EYE FOUNDATION: $80,000 · OtherACLU: $80,000 · OtherCEDARS-SINAI MEDICAL CENTER: $117,000 · OtherCEDARS-SINAI MEDICAL CENTERCONCERN FOUNDATION: $192,100 · OtherCONCERN FOUNDATION+113 more: $982,845 · Other+113 moreVISTA DEL MAR CHILD AND FAMILY SERVICES: $242,000 · Human ServicesVISTA DEL …WOUNDED WARRIOR PROJECT INC: $34,000 · Human ServicesWOUNDED WA…GUIDE DOGS FOR THE BLIND INC: $18,500 · Human ServicesAmerican National Red Cross & Its Constituent Chapters and Branches: $15,000 · Human Services+10 more: $53,000 · Human Services+10 moreWORLD WILDLIFE FUND INC: $63,000 · EnvironmentCONSERVATION INTERNATIONAL FOUNDATION: $60,000 · EnvironmentENVIRONMENTAL DEFENSE FUND INCORPORATED: $37,500 · EnvironmentNATURAL RESOURCES DEFENSE COUNCIL INC: $29,000 · EnvironmentTHE WILDERNESS SOCIETY: $19,500 · EnvironmentTREEPEOPLE INC: $18,760 · EnvironmentTHE SURFRIDER FOUNDATION: $17,500 · EnvironmentHEAL THE BAY: $17,500 · Environment+9 more: $41,250 · EnvironmentCENTER FOR BIOLOGICAL DIVERSITY INC: $65,000 · AnimalsLOS ANGELES SOCIETY FOR THE PREVENTION OF CRUELTY TO ANIMALS: $56,000 · AnimalsINTERNATIONAL FUND FOR ANIMAL WELFARE INC: $32,500 · AnimalsWildlife Conservation Society: $25,000 · AnimalsMUTTS WITH A MISSION: $20,000 · AnimalsPROJECT K9 HERO: $18,500 · AnimalsNATIONAL WILDLIFE FEDERATION: $18,000 · AnimalsWESTSIDE GERMAN SHEPHERD RESCUE OF LOS ANGELES: $15,000 · AnimalsVESTED INTEREST IN K9S INC: $11,000 · AnimalsBEST FRIENDS ANIMAL SOCIETY: $10,000 · Animals+4 more: $22,000 · AnimalsMuseum of Craft and Design: $185,100 · Arts & CultureMUSEUM ASSOCIATES: $17,000 · Arts & CultureFACING HISTORY & OURSELVES INC: $10,000 · Arts & CultureGRAMMY MUSEUM FOUNDATION INC: $10,000 · Arts & CultureCAROLYN GLASOE BAILEY FOUNDATION INC: $9,500 · Arts & Culture+9 more: $39,600 · Arts & CultureMEDECINS SANS FRONTIERES USA INC: $74,250 · InternationalWORLD CENTRAL KITCHEN INC: $68,500 · InternationalDIRECT RELIEF: $31,500 · InternationalGLOBALGIVING FOUNDATION INC: $10,000 · International+8 more: $35,000 · InternationalUCLA FOUNDATION: $106,000 · EducationLIVE OAK A LEARNING CENTER FOR CHILDREN: $38,200 · EducationTRUSTEES OF THE UNIVERSITY OF PENNSYLVANIA: $20,000 · EducationCOLLEGE OF CHARLESTON FOUNDATION: $11,000 · EducationCHILDREN'S FOUNDATION OF AMERICA: $8,600 · EducationTHE ARCHER SCHOOL FOR GIRLS INC: $8,250 · Education+4 more: $11,750 · Education
Other$2,179,429Human Services$362,500Environment$304,010Animals$293,000Arts & Culture$271,200International$219,250Education$203,800

Showing the 200 largest grantees by grant value.

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 budgetVISTA DEL MAR CHILD AND FAMILY SERVICES: $242,000 over 8y, 0.2% of budgetCONCERN FOUNDATION: $192,100 over 9y, 1.6% of budgetMuseum of Craft and Design: $185,100 over 9y, 1.3% of budgetCEDARS-SINAI MEDICAL CENTER: $117,000 over 4y, 0.0% of budgetUCLA FOUNDATION: $106,000 over 6y, 0.0% of budgetDISCOVERY EYE FOUNDATION: $80,000 over 8y, 2.5% of budgetMEDECINS SANS FRONTIERES USA INC: $74,250 over 9y, 0.0% of budgetWORLD CENTRAL KITCHEN INC: $68,500 over 5y, 0.0% of budgetCENTER FOR BIOLOGICAL DIVERSITY INC: $65,000 over 7y, 0.0% of budgetWORLD WILDLIFE FUND INC: $63,000 over 9y, 0.0% of budgetCONSERVATION INTERNATIONAL FOUNDATION: $60,000 over 7y, 0.0% of budgetLOS ANGELES SOCIETY FOR THE PREVENTION OF CRUELTY TO ANIMALS: $56,000 over 9y, 0.1% of budgetTHE NATURE CONSERVANCY: $54,500 over 7y, 0.0% of budgetLOS ANGELES REGIONAL FOOD BANK: $53,750 over 6y, 0.0% of budgetLIVE OAK A LEARNING CENTER FOR CHILDREN: $38,200 over 7y, 0.1% of budgetENVIRONMENTAL DEFENSE FUND INCORPORATED: $37,500 over 7y, 0.0% of budgetWomen Against Gun Violence: $35,000 over 7y, 3.5% of budgetWOUNDED WARRIOR PROJECT INC: $34,000 over 7y, 0.0% of budgetINTERNATIONAL FUND FOR ANIMAL WELFARE INC: $32,500 over 6y, 0.0% of budgetDIRECT RELIEF: $31,500 over 2y, 0.0% of budgetKCRW FOUNDATION INC: $29,500 over 8y, 0.0% of budgetNATURAL RESOURCES DEFENSE COUNCIL INC: $29,000 over 4y, 0.0% of budgetWildlife Conservation Society: $25,000 over 4y, 0.0% of budgetSHARE OUR STRENGTH: $22,500 over 4y, 0.0% of budgetPAWS FOR PURPLE HEARTS: $21,000 over 8y, 0.1% of budgetPLANNED PARENTHOOD LOS ANGELES: $20,000 over 2y, 0.0% of budgetTRUSTEES OF THE UNIVERSITY OF PENNSYLVANIA: $20,000 over 5y, 0.0% of budgetMUTTS WITH A MISSION: $20,000 over 7y, 0.1% of budgetTHE WILDERNESS SOCIETY: $19,500 over 9y, 0.0% of budgetTREEPEOPLE INC: $18,760 over 9y, 0.0% of budgetPROJECT K9 HERO: $18,500 over 7y, 0.3% of budgetGUIDE DOGS FOR THE BLIND INC: $18,500 over 5y, 0.0% of budgetNATIONAL WILDLIFE FEDERATION: $18,000 over 8y, 0.0% of budgetTHE SURFRIDER FOUNDATION: $17,500 over 9y, 0.0% of budgetHEAL THE BAY: $17,500 over 9y, 0.1% of budgetMUSEUM ASSOCIATES: $17,000 over 5y, 0.0% of budgetChildren's Hospital Los Angeles: $16,750 over 8y, 0.0% of budgetMALIBU FOUNDATION: $15,000 over 3y, 0.8% of budgetAmerican National Red Cross & Its Constituent Chapters and Branches: $15,000 over 3y, 0.0% of budgetWESTSIDE GERMAN SHEPHERD RESCUE OF LOS ANGELES: $15,000 over 4y, 0.4% of budgetISRAAID US GLOBAL HUMANITARIAN ASSISTANCE INC: $15,000 over 2y, 0.0% of budgetTHE CALIFORNIA WILDLIFE CENTER: $12,500 over 3y, 0.5% of budgetMEALS ON WHEELS AMERICA: $12,500 over 2y, 0.0% of budgetCOLLEGE OF CHARLESTON FOUNDATION: $11,000 over 3y, 0.0% of budgetPATH: $11,000 over 7y, 0.0% of budgetVESTED INTEREST IN K9S INC: $11,000 over 5y, 0.1% of budgetBeit T'Shuvah: $10,800 over 9y, 0.0% of budgetFACING HISTORY & OURSELVES INC: $10,000 over 1y, 0.0% 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.

  • Who funds VISTA DEL MAR CHILD AND FAMILY SERVICES ↗
  • Who funds CONCERN FOUNDATION ↗
  • Who funds Museum of Craft and Design ↗
  • Who funds CEDARS-SINAI MEDICAL CENTER ↗
  • Who funds UCLA FOUNDATION ↗
  • Who funds DISCOVERY EYE FOUNDATION ↗
  • Who funds MEDECINS SANS FRONTIERES USA INC ↗
  • Who funds WORLD CENTRAL KITCHEN INC ↗
  • Who funds CENTER FOR BIOLOGICAL DIVERSITY INC ↗
  • Who funds WORLD WILDLIFE FUND INC ↗
  • Who funds CONSERVATION INTERNATIONAL FOUNDATION ↗
  • Who funds LOS ANGELES SOCIETY FOR THE PREVENTION OF CRUELTY TO ANIMALS ↗
  • Who funds THE NATURE CONSERVANCY ↗
  • Who funds LOS ANGELES REGIONAL FOOD BANK ↗
  • Who funds LIVE OAK A LEARNING CENTER FOR CHILDREN ↗
  • Who funds ENVIRONMENTAL DEFENSE FUND INCORPORATED ↗
  • Who funds Women Against Gun Violence ↗
  • Who funds WOUNDED WARRIOR PROJECT INC ↗
  • Who funds INTERNATIONAL FUND FOR ANIMAL WELFARE INC ↗
  • Who funds DIRECT RELIEF ↗
  • Who funds KCRW FOUNDATION INC ↗
  • Who funds NATURAL RESOURCES DEFENSE COUNCIL INC ↗
  • Who funds Wildlife Conservation Society ↗
  • Who funds SHARE OUR STRENGTH ↗
  • Who funds PAWS FOR PURPLE HEARTS ↗
  • Who funds PLANNED PARENTHOOD LOS ANGELES ↗
  • Who funds TRUSTEES OF THE UNIVERSITY OF PENNSYLVANIA ↗
  • Who funds MUTTS WITH A MISSION ↗
  • Who funds THE WILDERNESS SOCIETY ↗
  • Who funds TREEPEOPLE INC ↗

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.

California Community …Jewish Community Foun…The Annenberg Foundat…Santa Barbara Foundat…PatagoniaorgThe Ahmanson Foundati…The Ralph M Parsons F…Monimos FoundationBruce Ford Brown Memo…Marin Community Found…The Deutsch FoundationThe McCune Foundation
California Community FoundationCA31.6× affinity23 shared granteesties to 11 of 11Hover any node to trace its alignments.Compare side by side →

Open a dossier: California Community Foundation · Jewish Community Foundation of Los Angeles · The Annenberg Foundation · Santa Barbara Foundation · Patagoniaorg · The Ahmanson Foundation · The Ralph M Parsons Foundation · Monimos Foundation · Bruce Ford Brown Memorial Trust · Marin Community Foundation · The Deutsch Foundation · The McCune 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 David & Sylvia Weisz Foundation funds: left to right is the share of its income from government, bottom to top the share from David & Sylvia Weisz Foundation. Bigger dots raise more.

2024
’20’21’22’23’24’25
no gov · 60%1%3%6%10%funder's share of their income ↑0%25%50%75%100%share of the org’s income from government →median 6%
  • Mercy Corps: 47% of income from government
  • Save the Children Federation Inc: 30% of income from government
  • From the Top Inc: 6% of income from government
  • Music to Life Inc: 5% of income from government
  • Americares Foundation Inc: 0% of income from government
  • Wounded Warrior Project Inc: 0% of income from government
no gov moneyreceives it· size = income
6get no government money at all
44report government grants on their 990 we could not trace to a source (not plotted)
0rely 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.
05Through Plinth

Warm introductions · Powered by PlinthPlus

How do I get to David & Sylvia Weisz Foundation?

Find your warmest path to David & Sylvia Weisz 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.

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 286 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 2025, released 2025. Filings run roughly 12 to 24 months behind; figures are dated accordingly.

Source object · view filing

Play a game based on David & Sylvia Weisz’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