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Oklahoma · Private foundation

Case & Elfreda Zandbergen Charitable

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.

$123k
Granted FY2025(still arriving)
11
Grants FY2025
12
Organizations funded FY2024
0%
First-time grantees FY2024
Read the full brief
Median grant, FY2025
$10,000
Largest grant, FY2025
$22,000
Organizations funded a year
11 to 12
FY2020 to FY2024
States reached, FY2025
2
Total assets, FY2025
$1.9M
Applications
Preselected organizations only
Per its most recent filing; check its own site

How open it is to new grantees

In FY2024, 0% of the organizations Case & Elfreda Zandbergen Charitable funded were first-time grantees, receiving 0% of its grant dollars.

New vs renewed · share of each year

In FY2024, 100% of grant dollars renewed an existing relationship; $0 went to new ones.

50%100%’21’22’23’24
RenewedFirst-time

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

’21’22’23’24
Food & NutritionHuman ServicesOther
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 arriving11$123k9%
FY202412$109k0%
FY202312$102k17%
FY202211$106k0%
FY202111$126k9%
FY202011$122kn/a
85% classified

What it funded, over time

Every grant placed by its stated purpose and the recipient’s mission, by year, FY2020 to 2025.

Human Services$322kFood & Nutrition$104kPublic Safety & Disaster$93kEmployment$46kAnimals$46kOther$0

Top grantees

Largest recipients by total granted, FY2020 to FY2025, and the share of each one’s budget the grants supplied at peak.

Show all 11 grantees
All grantees of Case & Elfreda Zandbergen Charitable by total granted
GranteeTotal grantedYearsShare of their budget
Salvation Army$138,0006n/a
American National Red Cross & Its Constituent Chapters and Branches$92,50060%
Tulsa Boys' Home Inc$65,25060%
Meals on Wheels of Metro Tulsa Inc$63,50050%
A New Leaf Inc$46,25050%
Boston Avenue Helping Hands Inc$44,50062%
Community Food Bank of Eastern Oklahoma Inc$40,00060%
Clarehouse Inc$29,50050%
Family & Childrens Services Inc$18,00030%
Vinita Senior Citizens Center$16,50063%
Grand Lake Community Ministry$10,00019%

What it could do for these grantees

Plus 4 recipients with no EIN on record ($123k), not named here.

Where it is load-bearing

Each grantee by its size and the share of its budget Case & Elfreda Zandbergen Charitable supplied at peak.

25%50%75%100%$1.0M$10M$100Mgrantee revenue →↑ funder's share of their budgetAmerican National Red Cross & Its Constituent Chapters and Branches: $92,500 over 6y, 0.0% of budgetTulsa Boys' Home Inc: $65,250 over 6y, 0.1% of budgetMeals on Wheels of Metro Tulsa Inc: $63,500 over 5y, 0.2% of budgetA New Leaf Inc: $46,250 over 5y, 0.1% of budgetBoston Avenue Helping Hands Inc: $44,500 over 6y, 2.0% of budgetCommunity Food Bank of Eastern Oklahoma Inc: $40,000 over 6y, 0.0% of budgetClarehouse Inc: $29,500 over 5y, 0.4% of budgetFamily & Childrens Services Inc: $18,000 over 3y, 0.0% of budgetVinita Senior Citizens Center: $16,500 over 6y, 3.3% of budgetGrand Lake Community Ministry: $10,000 over 1y, 9.1% 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 10.

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.

The Charles & Peggy Stephenson Family FoundationOK17.9× affinity6 shared granteesties to 11 of 11Hover any node to trace its alignments.Compare side by side →

Open a dossier: The Charles & Peggy Stephenson Family Foundation · Mervin Bovaird Foundation · The Gelvin Foundation · The Anne and Henry Zarrow Foundation · Arvest Foundation · Tulsa Community Foundation · The David E & Cassie L Temple Foundation · Stuart Family Foundation · Morningcrest Healthcare Foundation · Grace & Franklin Bernsen Foundation · The Hardesty Family Foundation Inc · George Kaiser Family 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 Case & Elfreda Zandbergen Charitable with peer funders

About Case & Elfreda Zandbergen Charitable

How much does Case & Elfreda Zandbergen Charitable give?
Case & Elfreda Zandbergen Charitable reported 11 grants totaling $122,500 in its FY2025 IRS filing. It funded between 11 and 12 organizations a year over FY2020 to FY2024.
What does Case & Elfreda Zandbergen Charitable fund?
By grant dollars over FY2020 to FY2025, its largest causes are Human Services (47%), Food & Nutrition (15%), Public Safety & Disaster (13%).
Who are Case & Elfreda Zandbergen Charitable's largest grantees?
By total granted over FY2020 to FY2025: Salvation Army ($138k), American National Red Cross & Its Constituent Chapters and Branches ($93k), Tulsa Boys' Home Inc ($65k).
Does Case & Elfreda Zandbergen Charitable fund new organizations?
In FY2024, 0% of the organizations it funded were first-time grantees.
Does Case & Elfreda Zandbergen Charitable 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 Case & Elfreda Zandbergen Charitable?
Its strongest co-funders, measured against what their size predicts, include The Charles & Peggy Stephenson Family Foundation, Mervin Bovaird Foundation, The Gelvin Foundation.
Where is Case & Elfreda Zandbergen Charitable based?
Case & Elfreda Zandbergen Charitable is based in OK.

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 15 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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