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Illinois · Private foundation

The David and Lynne Weinberg Family 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.

$435k
Granted FY2025(still arriving)
15
Grants FY2025
13
Organizations funded FY2024
77%
First-time grantees FY2024
Read the full brief
Median grant, FY2025
$10,000
Largest grant, FY2025
$250,000
Organizations funded a year
1 to 13
FY2021 to FY2024
States reached, FY2025
6
Total assets, FY2025
$4.6M
Applications
Preselected organizations only
Per its most recent filing; check its own site

How open it is to new grantees

In FY2024, 77% of the organizations The David and Lynne Weinberg Family Foundation funded were first-time grantees, receiving 25% of its grant dollars.

New vs renewed · share of each year

In FY2024, 75% of grant dollars renewed an existing relationship; $64k went to new ones.

50%100%’22’23’24
RenewedFirst-time

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

’22’23’24
Arts & CultureCrime & LegalSocial ScienceInternationalEducationOther
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.
The numbers by year
Fiscal yearOrganizations fundedTo those organizationsFirst-time grantees
FY2025still arriving14$430k50%
FY202413$254k77%
FY20233$325k33%
FY20221$200k100%
FY20212$60kn/a
100% classified

What it funded, over time

Every grant placed by its stated purpose and the recipient’s mission, by year, FY2021 to 2025.

Education$423kSocial Science$400kCommunity Improvement$195kInternational$130kArts & Culture$41kFood & Nutrition$30kHealth$21kCrime & Legal$15kOther$0

Top grantees

Largest recipients by total granted, FY2021 to FY2025, and the share of each one’s budget the grants supplied at peak.

Show all 16 grantees
All grantees of The David and Lynne Weinberg Family Foundation by total granted
GranteeTotal grantedYearsShare of their budget
The Brookings Institution$400,00020%
The Commercial Club Foundation$195,00031%
Council on Foreign Relations Inc$110,00030%
PKD Foundation$20,00020%
The Chicago Council on Global Affairs$20,00020%
Ravinia Festival Association$19,50010%
Thornwillow Institute Ltd$15,0001n/a
City Harvest Inc$10,00010%
Greater Chicago Food Depository$10,00010%
Illinois Coalition for Immigrant and Refugee Rights$10,00010%
Everytown for Gun Safety Support Fund Inc$10,00020%
San Francisco Food Bank$10,00010%
North Shore Congregation Israel$10,0001n/a
Court Appointed Special Advocates of Cook County$5,00010%
Erikson Institute$5,00010%
Cps Lives Nfp$1,00010%

What it could do for these grantees

Plus 5 recipients with no EIN on record ($418k), not named here.

Where it is load-bearing

Each grantee by its size and the share of its budget The David and Lynne Weinberg Family Foundation supplied at peak.

25%50%75%100%$1.0M$10M$100Mgrantee revenue →↑ funder's share of their budgetThe Brookings Institution: $400,000 over 2y, 0.2% of budgetThe Commercial Club Foundation: $195,000 over 3y, 1.2% of budgetCouncil on Foreign Relations Inc: $110,000 over 3y, 0.1% of budgetPKD Foundation: $20,000 over 2y, 0.1% of budgetThe Chicago Council on Global Affairs: $20,000 over 2y, 0.1% of budgetRavinia Festival Association: $19,500 over 1y, 0.0% of budgetCity Harvest Inc: $10,000 over 1y, 0.0% of budgetGreater Chicago Food Depository: $10,000 over 1y, 0.0% of budgetIllinois Coalition for Immigrant and Refugee Rights: $10,000 over 1y, 0.0% of budgetEverytown for Gun Safety Support Fund Inc: $10,000 over 2y, 0.0% of budgetSan Francisco Food Bank: $10,000 over 1y, 0.0% of budgetCourt Appointed Special Advocates of Cook County: $5,000 over 1y, 0.2% of budgetErikson Institute: $5,000 over 1y, 0.0% of budgetCps Lives Nfp: $1,000 over 1y, 0.3% of budget

Tap a dot to name the grantee.

How this is measured
Share of budget is the funder’s grant in a year over the grantee’s total revenue that year, at its highest across the years we hold; revenue is from all sources. Only grantees confirmed against their own filings, whose grants do not exceed their revenue, are plotted: the largest 14.

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.

Fidelity Investments Charitable Gift FundMA6.1× affinity6 shared granteesties to 1 of 1Hover any node to trace its alignments.Compare side by side →

Open a dossier: 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.

Compare The David and Lynne Weinberg Family Foundation with peer funders

Warm introductions · Powered by PlinthPlus

How do I get to The David and Lynne Weinberg Family Foundation?

Find your warmest path to The David and Lynne Weinberg Family 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.

About The David and Lynne Weinberg Family Foundation

How much does The David and Lynne Weinberg Family Foundation give?
The David and Lynne Weinberg Family Foundation reported 15 grants totaling $435,000 in its FY2025 IRS filing. It funded between 1 and 13 organizations a year over FY2021 to FY2024.
What does The David and Lynne Weinberg Family Foundation fund?
By grant dollars over FY2021 to FY2025, its largest causes are Education (33%), Social Science (31%), Community Improvement (15%).
Who are The David and Lynne Weinberg Family Foundation's largest grantees?
By total granted over FY2021 to FY2025: The Brookings Institution ($400k), The Commercial Club Foundation ($195k), Council on Foreign Relations Inc ($110k).
Does The David and Lynne Weinberg Family Foundation fund new organizations?
In FY2024, 77% of the organizations it funded were first-time grantees.
Does The David and Lynne Weinberg Family Foundation accept unsolicited applications?
Its most recent filing reports that it funds preselected organizations and does not take unsolicited requests. Check the foundation's own site before ruling it out.
Which funders back the same organizations as The David and Lynne Weinberg Family Foundation?
Its strongest co-funders, measured against what their size predicts, include Fidelity Investments Charitable Gift Fund, Amazonsmile Foundation.
Where is The David and Lynne Weinberg Family Foundation based?
The David and Lynne Weinberg Family Foundation is based in IL.

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 22 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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