Dettmer Family Foundation

Private foundation · Grantmaker Palm Beach Gardens, FL EIN: 13-7267343

The Dettmer Family Foundation is a private foundation based in Palm Beach Gardens, Florida. In its 2025 filing, it reported making 24 grants totaling $23,140 and stated that it contributes only to preselected charitable organizations.

Dettmer Family Foundation at a glance

In short: Dettmer Family Foundation gave $23K across 24 grants in 2025 (avg $964.167), top state Florida. 13% of 2025 grantees were new. Source: 2025 IRS Form 990-PF.

Annual giving (2025)
$23,140
-5.6% vs 2024
Grants made (2025)
24
-7.7% vs 2024
Average grant
$964
+2.3% vs 2024
Median grant
$675
Total assets
$580,507
-5.0% vs 2024
New grantees (estimate)
13% first-time grantees (3 of 24, 2025; small sample)
Primary geography
Florida (20% of itemized 2025 grant dollars)
Latest 990 filing
Form 990-PF, 2025 View filing

Data from IRS Form 990-PF, 2025; updated October 2026. New grantees are estimated by matching recipient names across years (methodology).

How to apply to Dettmer Family Foundation

Accepts unsolicited proposals
No
How to Apply

The foundation states that it makes contributions only to preselected charitable organizations and does not accept unsolicited requests for funds.

Contact

Mailing address: 11980 San Cristobal Gdns Ave 42, Palm Beach Gardens, FL 33410
Phone: (561) 832-2926

Application details from Grantable's research on the foundation's public materials; confirm on its website before applying.

Who Dettmer Family Foundation funds

How this funder distributes its grants

Top Recipients

Top 10 recipients in 2025

James Madison Institute: $4KJames Madison Institute$4KTurning Point USA: $3KTurning Point USA$3KJudicial Watch: $3KJudicial Watch$3KState Policy Network: $3KState Policy Network$3KBath & Tennis Preservation Foundation: $1KBath & Tennis PreservationFoundation$1KCfact: $1KCfact$1KCO2 Coalition: $1KCO2 Coalition$1KMemorial Sloan-Kettering Cancer Center: $1KMemorial Sloan-KetteringCancer Center$1KParkinson's Foundation: $1KParkinson's Foundation$1KPlanetary Society: $1KPlanetary Society$1K

The largest 2025 recipient was James Madison Institute ($4K). Together the top 10 received $18K.

Grant Size Distribution

107 grants across all recorded years

107<$50K$50–100K$100–250K$250–500K$500K–1M$1–5M$5M+

The most common grant size was under $50K: 107 grants of 107 (100%).

Geographic Focus

Where this funder awards grants

In 2025, the largest reported shares of grant dollars by recipient state were Florida (20%), the District of Columbia (18%), New York (18%), Virginia (16%), and Arizona (13%).

Grant Distribution by State

18states

Share of 2025 grant dollars across all 24 itemized grants.

Cities

WashingtonPalm BeachTallahasseeArlingtonNew YorkBostonCambridgeFishersKnoxvillePasadenaPhoenixKansas CityTitusvilleColorado SpringsDenverWellesleyAnchorageAnnapolisClaremontHouston

Is Dettmer Family Foundation open to new grantees?

13%

first-time grantees, 2025

In 2025, 3 of 24 grantees (13%) were first-time recipients. With only 24 grantees, that is a small sample: one grantee more or less moves the share by about 4 points. First grants averaged $422; repeat grants $1K. How we count

Medians: $165 first-time, $700 repeat.

  • 79% of 2025 grantees were also funded in 2024. Method
  • Giving fell 38% from 2022 to 2025. Method
  • In 2025 it paid out 86% of its IRS minimum distribution (the 5% rule). Foundations have until the end of the next year to meet it. Method

Estimate from itemized grant lists in IRS Form 990-PF filings (2020–2025). Recipient names are matched across years, so a renamed or misspelled grantee can look new; grants to individuals are left out. Methodology.

Giving History

Giving Over Time

Total grant dollars and number of grants per year

$0$10K$20K$30K$40K18 grants2020 23 grants2021 18 grants2022 16 grants2023 26 grants2024 24 grants2025

From 2020 to 2025, annual grant giving ranged from $11K (2023) to $37K (2022). In 2025 it made 24 grants totaling $23K.

Grants by year

Grant recipients and amounts by year

RecipientPurposeAmount
James Madison Institute Tallahassee, FLTo Further the Purpose of the Organization$3,500
Turning Point USA Phoenix, AZTo Further the Purpose of the Organization$3,000
Judicial Watch Washington, DCTo Further the Purpose of the Organization$2,500
State Policy Network Arlington, VATo Further the Purpose of the Organization$2,500
Bath & Tennis Preservation Foundation Palm Beach, FLTo Further the Purpose of the Organization$1,000
Cfact Washington, DCTo Further the Purpose of the Organization$1,000
CO2 Coalition Arlington, VATo Further the Purpose of the Organization$1,000
Memorial Sloan-Kettering Cancer Center New York, NYTo Further the Purpose of the Organization$1,000
Parkinson's Foundation New York, NYTo Further the Purpose of the Organization$1,000
Planetary Society Pasadena, CATo Further the Purpose of the Organization$1,000
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Financial History

Multi-year comparison from IRS filings

Figures from IRS filings, by filing year
Filing yearTotal AssetsRevenueExpensesGrants paidGrantsQualifying DistributionsNet Investment IncomeDistributable Amount
2025$580,507$4,993$35,527$23,14024$23,140$17,466$26,862
2024$611,041$116,659$37,315$24,50026$24,500$112,069$25,304
2023$531,197$42,163$25,206$10,70016$10,700$37,663$23,877
2022$514,240$-21,452$52,859$37,40018$37,400$7,198$25,328
2021$588,952$124,784$46,885$33,05023$33,050$114,206$25,124
2020$513,054$58,766$39,076$28,70018—$49,609$23,247

Under IRS private-foundation payout rules, Dettmer Family Foundation reported a distributable amount of $27K for 2025 — the minimum it must pay out in qualifying distributions.

Research compiled by Grantable AI from public sources. Last updated September 2026.

Mission & Focus Areas

No mission statement for the foundation is provided. Its 2025 grants went to organizations with varied missions. For example, Judicial Watch describes its work as promoting government integrity, transparency, accountability, and fidelity to the rule of law. State Policy Network says it aims to catalyze freedom movements in every state, anchored by independent think tanks. The CO2 Coalition says it provides public access to technical analysis of atmospheric CO2 science. Other recipients include organizations whose stated missions involve higher education, educational and leadership programs, health, and space.

Grantmaking

In filing year 2025, the foundation reported 24 grants totaling $23,140. Grants ranged from $50 to $3,500, with a median grant of $675.

Among the largest reported grants were $3,500 to the James Madison Institute; $3,000 to Turning Point USA; $2,500 each to Judicial Watch and State Policy Network; and $1,000 each to Bath & Tennis Preservation Foundation, CFACT, the CO2 Coalition, Memorial Sloan-Kettering Cancer Center, Parkinson’s Foundation, the Planetary Society, and Tunnel to Towers. The National Space Society received $700. The stated purpose for these grants was “to further the purpose of the organization.”

Leadership & Key People

Leadership team and compensation from IRS filings

The 2025 filing lists Patricia York Dettmer, Robert G Dettmer, and Robert Brantley Dettmer as trustees.

Dettmer Family Foundation's 2025 filing lists 2 officers; none of the 2 officers listed in 2025 report compensation.

Officers on the 2025 filing

  • Patricia York Dettmer

    Trustee

    On filings since 2020

    0.3 hrs/week

    No compensation reported

  • Robert Brantley Dettmer

    Trustee

    On filings since 2020

    0.3 hrs/week

    No compensation reported

Data from IRS Form 990 filings, 2020–2025. "On filings since" is the earliest filing we hold that lists the person; hours are average hours per week as reported.

Frequently asked questions about Dettmer Family Foundation

How much does Dettmer Family Foundation give each year?

Dettmer Family Foundation gave $23K across 24 grants in 2025, according to its 2025 IRS Form 990-PF. In 2024 it gave $25K across 26 grants.

What is Dettmer Family Foundation's typical grant size?

Dettmer Family Foundation's median grant in 2025 was $675, and its average grant was $964, across 24 grants on its 2025 IRS Form 990-PF. Organizations receiving their first grant from Dettmer Family Foundation that year got $422 on average.

Where does Dettmer Family Foundation give grants?

Dettmer Family Foundation's top state is Florida, with 20% of the grant dollars itemized on its 2025 IRS Form 990-PF. The next largest states were District of Columbia (18%) and New York (18%). The most frequent recipient cities were New York, NY (4 grants), Washington, DC (3 grants), Tallahassee, FL (2 grants) and Arlington, VA (2 grants).

Does Dettmer Family Foundation give general operating support?

Not in 2025: none of the 24 grants with a stated purpose on Dettmer Family Foundation's 2025 IRS Form 990-PF were described as general or operating support. Recurring purposes include "To Further the Purpose of the Organization" (24 grants).

Who are Dettmer Family Foundation's largest grantees?

Dettmer Family Foundation's largest 2025 grantees include James Madison Institute ($3,500), Turning Point USA ($3,000) and Judicial Watch ($2,500), according to its 2025 IRS Form 990-PF. Together they received 39% of its itemized 2025 grant dollars.

How large is Dettmer Family Foundation?

Dettmer Family Foundation reported $581K in total assets on its 2025 IRS Form 990-PF. It paid out $23K in qualifying distributions that year, against a required minimum of $27K (roughly 5% of its investment assets). Falling short in one year is not a violation: foundations have until the end of the next year to meet the minimum.

What does Dettmer Family Foundation fund?

No mission statement for the foundation is provided. Its 2025 grants went to organizations with varied missions. For example, Judicial Watch describes its work as promoting government integrity, transparency, accountability, and fidelity to the rule of law. See mission & focus areas ↑

How do I apply for a grant from Dettmer Family Foundation?

The foundation states that it makes contributions only to preselected charitable organizations and does not accept unsolicited requests for funds. Eligibility and process details are in the grantmaking section of this profile. See how to apply ↑

What is Dettmer Family Foundation's EIN?

Dettmer Family Foundation's EIN (Employer Identification Number) is 13-7267343. IRS Form 990 filing data is available on this page for 2020–2025.

Does Dettmer Family Foundation accept unsolicited proposals?

No, according to Grantable's research on the foundation's published guidelines. See how to apply ↑

Data last updated October 2026. Sourced from IRS Form 990-PF filings. Research dossier generated September 2026.

Data update history

(6)

When this profile's IRS filing data changed on Grantable

  1. Updated Form 990-PF for fiscal year 2020 (received by the IRS May 5, 2021)
  2. Updated Form 990-PF for fiscal year 2021 (received by the IRS May 11, 2022)
  3. Updated Form 990-PF for fiscal year 2022 (received by the IRS June 12, 2023)
  4. Updated Form 990-PF for fiscal year 2023 (received by the IRS June 27, 2024)
  5. Updated Form 990-PF for fiscal year 2024 (received by the IRS May 9, 2025)
  6. Added Form 990-PF for fiscal year 2025 (received by the IRS May 12, 2026)

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The filing figures on this page are open data under CC BY 4.0. About GrantGraph Open

Figures come from Dettmer Family Foundation's IRS filings (methodology). AI-written summaries, news items and logos are not covered by the open licence. Spot an error? Email hello@grantable.co.

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