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· Private foundation

The Diane Stilwell Weinberg 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.

$72k
Granted FY2025still arriving
15
Grants FY2025still arriving
5
States reached
$26k
Largest
01What it funds
01100% classified

What it funded, over time

Every grant placed by its stated purpose and the recipient’s mission, by year, FY2022 to 2024.

Arts & Culture$48kEducation$25kReligion$6kFood & Nutrition$4kInternational$2kRecreation & Sports$1k
02FY2025 · 15 grants

Where the money goes

Grants by size, and the largest recipients.

By grant size · FY2025

  • Under $10k14 grants · $46k
  • $10k–50k1 grant · $26k
$3,000
Median grant
5
States reached
$9k
Total assets
Largest grants
RecipientAmount
THE ART INSTITUTE OF CHICAGO$26,000
NEWBERRY LIBRARY$8,000
ARTIST BOOK HOUSE$6,000
THEOSOPHICAL SOCIETY IN AMERICA$6,000
CORE OF CULTURE DANCE PRESERVATION$5,000
NOURISHMENT PROJECTS NFP$4,000
THE NATIONAL SOCIETY OF THE COLONIAL DAMES OF AMERICA$4,000
CAXTON CLUB$3,000
Individual grant recipient$2,500
HISTORIC PRESERVATION FOUNDATION OF THE FORTNIGHTLY$2,000
AMERICAN INDIAN COLLEGE FUND$2,000
KISANGAJI PROJECT$1,000
THIRD COAST PERCUSSION$1,000
FRIENDS OF SULGRAVE MANOR$500
GUNSTON HALL FOUNDATION$500
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:

Dollar for dollar, its grants (FY22–25) land where the poverty rate runs at 13%, against an area that typically sits at 9%. 92% of its dollars go to grantees based in above-average-need neighborhoods. Most of its grants land in higher-need ZIPs.

area typical 9%KISANGAJI PROJECT: $1k → 11%SMITHSONIAN LITERACIES: $3k → 14%AMERICAN INDIAN COLLEGE FUND: $2k → 10%FRIENDS OF FORT HARRISON STATE PARK INC: $1k → 16%THEOSOPHICAL SOCIETY IN AMERICA: $6k → 7%THE ART INSTITUTE OF CHICAGO: $26k → 14%GUNSTON HALL FOUNDATION: $500 → 6%FRIENDS OF SULGRAVE MANOR: $500 → 22%KISANGAJI PROJECT: $1k → 11%THE NATIONAL SOCIETY OF THE COLONIAL DAMES OF AMERICA: $4k → 14%THEOSOPHICAL SOCIETY IN AMERICA: $3k → 7%THE ART INSTITUTE OF CHICAGO: $13k → 14%KISANGAJI PROJECT: $1k → 11%THE NATIONAL SOCIETY OF THE COLONIAL DAMES OF AMERICA: $3k → 14%THEOSOPHICAL SOCIETY IN AMERICA: $3k → 7%ARTIST BOOK HOUSE: $6k → 14%ARTIST BOOK HOUSE: $5k → 14%NEWBERRY LIBRARY: $20k → 14%NEWBERRY LIBRARY: $8k → 14%NEWBERRY LIBRARY: $5k → 14%CAXTON CLUB: $2k → 14%HISTORIC PRESERVATION FOUNDATION OF THE FORTNIGHTLY: $3k → 14%HISTORIC PRESERVATION FOUNDATION OF THE FORTNIGHTLY: $2k → 14%HISTORIC PRESRVATION FOUNDATION OF THE FORTNIGHTLY: $2k → 14%THIRD COAST PERCUSSION: $1k → 14%SOUTH ASIAN CLASSICAL MUSIC SOCIETY: $700 → 14%LYRIC OPERA OF CHICAGO: $9k → 14%LYRIC OPERA OF CHICAGO: $8k → 14%CAXTON CLUB: $3k → 14%CAXTON CLUB: $3k → 14%CORE OF CULTURE DANCE PRESERVATION: $5k → 14%SOUTH ASIAN CLASSICAL MUSIC SOCIETY: $1k → 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.
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 grantees
repeat funding

Who it funds again

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

92%of every dollar goes to organizations it has funded before.
$145k · 11 repeat orgs$13k to everyone else

11 repeat relationships: 9 still active in FY2025, 2 since wound down; 6 grantees were first funded in FY2025 (too recent to call).

How the two cohorts compare

Re-uppedFunded once

Organizations

11
1

Total granted

$145k
$1k

Still filing today

73%
0%

New vs renewed · share of each year

In FY2025, 84% of grant dollars renewed an existing relationship; $12k went to new ones.

50%100%’22’24’25
RenewedFirst-time

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

’22’24’25
Arts & CultureEducationOther
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

  • TA
    THE ART INSTITUTE OF CHICAGO
    2× · 2022–2025 · $39k · revenue +12%
  • LO
    Lyric Opera of Chicago
    2× · 2022–2024 · $16k · revenue +3%
  • TS
    THEOSOPHICAL SOCIETY IN AMERICA
    3× · 2022–2025 · $12k · revenue +3%

Funded once

  • FO
    FRIENDS OF FORT HARRISON STATE PARK INC
    one grant, 2024 · $1k
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
The Pierpont Morgan Library

The Morgan Library & Museum celebrates and shares the history and process of human creativity from antiquity to the present day through the preservation, study, and interpretation of a dynamic and growing collection.

Education
2
American Numismatic Society

The mission of the american numismatic society is to promote and advance the study, research, and appreciation of numismatics.

Arts & Culture
3
Proprietors of the Boston Athenaeum

The mission of the boston athenaeum is to engage all who seek knowledge by making accessible our library's collections and spaces, thereby inspiring reflection, discourse, creative expression, and joy.

Education
4
The Frick Collection

The Frick Collection (the "Collection") operates an internationally recognized art museum and library program for the inspiration and enjoyment of the public and for the advancement of the study of fine arts and kindred subjects.

—
5
The Athenaeum of Philadelphia

The athenaeum of philadelphia nurtures curiosity in members and neighbors, strengthening community through learning, discourse and meaningful engagement. the athenaeum is a historic and vibrant philadelphia-centered and member-supported…

Education
6
The Grolier Club of the City of New York

Founded in 1884, the grolier club is america's oldest and largest society for bibliophiles and enthusiasts in the graphic arts. named for jean grolier (1489 or 90-1565), the renaissance collector renowned for sharing his library with…

—
7
American Academy of Arts & Sciences

Founded in 1780, the american academy of arts and sciences honors excellence and convenes leaders from every field of human endeavor to examine new ideas, address issues of importance to the nation and the world, and work together "to…

Social Science
8
American Institute for Conservation of Historic and Artistic Works

A national membership organization in the united states dedicated to the preservation of cultural material, the american institute for conservation of historic and artistic works plays a crucial role in establishing and upholding…

Community Improvement
9
National Trust for Historic Preservation in the United States

The national trust for historic preservation in the united states protects significant places representing our diverse cultural experiences by taking direct action and inspiring broad public support.

Arts & Culture
10
Columbia College Chicago

The organization's mission is to educate students for creative occupations in diverse fields of arts and media.

Education
11
Collectors Club of Chicago
—
12
Society of Architectural Historians

The mission of the society is to advance the knowledge and understanding of architecture, design, landscape and urbanism worldwide among scholars, professionals in allied fields (including architecture, historic preservation and planning)…

Arts & Culture
How this is measured
The grantee most central to the portfolio’s shape is The National Society of the Colonial Dames of America; the most unlike its peers is The Nourishment Projects Nfp. 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

12 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. 12 of the 18 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)
2
Early backer (in before they grew)
12/12
Grantees still filing
6/12
Grew since first funded

Where the money sits, by cause and then by grantee

THE ART INSTITUTE OF CHICAGO: $39,000 · EducationTHE ART INSTITUTE OF CHICAGOTHE NEWBERRY LIBRARY: $33,000 · EducationTHE NEWBERRY LIBRARYThe Nourishment Projects NFP: $8,000 · EducationThe Nourishment Projects NFP+1 more: $2,000 · EducationTHEOSOPHICAL SOCIETY IN AMERICA: $12,000 · OtherTHEOSOPHICAL SOCIETY IN AMERICAARTIST BOOK HOUSE: $11,000 · OtherARTIST BOOK HOUSECAXTON CLUB: $8,000 · OtherCAXTON CLUBCORE OF CULTURE DANCE PRESERVATION: $5,000 · OtherCORE OF CULTURE DANCE PRESERVATI…KISANGAJI PROJECT: $3,000 · OtherKISANGAJI PROJECTIndividual grant recipient: $2,500 · OtherIndividual grant recipientSOUTH ASIAN CLASSICAL MUSIC SOCIETY: $1,700 · Other+2 more: $1,500 · OtherLyric Opera of Chicago: $16,250 · Arts & CultureLyric Opera of ChicagoTHE NATIONAL SOCIETY OF THE COLONIAL DAMES OF AMERICA: $6,500 · Arts & CultureTHE NATIONAL SOCIETY O…HISTORIC PRESERVATION FOUNDATION OF THE FORTNIGHTLY: $6,500 · Arts & CultureHISTORIC PRESERVATION …+2 more: $1,500 · Arts & Culture
Education$82,000Other$44,700Arts & Culture$30,750

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 ART INSTITUTE OF CHICAGO: $39,000 over 2y, 0.0% of budgetTHE NEWBERRY LIBRARY: $33,000 over 3y, 0.2% of budgetLyric Opera of Chicago: $16,250 over 2y, 0.0% of budgetTHEOSOPHICAL SOCIETY IN AMERICA: $12,000 over 3y, 0.2% of budgetThe Nourishment Projects NFP: $8,000 over 2y, 8.5% of budgetCAXTON CLUB: $8,000 over 3y, 2.5% of budgetTHE NATIONAL SOCIETY OF THE COLONIAL DAMES OF AMERICA: $6,500 over 2y, 0.1% of budgetHISTORIC PRESERVATION FOUNDATION OF THE FORTNIGHTLY: $6,500 over 3y, 0.5% of budgetAMERICAN INDIAN COLLEGE FUND: $2,000 over 1y, 0.0% of budgetTHIRD COAST PERCUSSION NFP: $1,000 over 1y, 0.1% of budgetFRIENDS OF SULGRAVE MANOR: $500 over 1y, 0.2% of budgetGUNSTON HALL FOUNDATION: $500 over 1y, 0.1% 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.

How much its grantees rely on government

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

2025
’20’21’22’23’24’25
no gov · 00%1%3%6%10%funder's share of their income ↑0%3%5%8%10%share of the org’s income from government →
    no gov moneyreceives it· size = income
    0get no government money at all
    0rely on government for over half their income
    ⤢ axis zoomed · 0–10%
    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 The Diane Stilwell Weinberg Foundation?

    Find your warmest path to The Diane Stilwell Weinberg 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 18 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

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