Casteel Family Foundation

Private foundation · Grantmaker San Diego, CA EIN: 81-4318140

Casteel Family Foundation is a private foundation, based in San Diego, CA. IRS filing data is available from 2019 through 2025. As of 2025, the organization holds $180K in total assets. In 2025, it awarded 4 grants totaling $125K. Net investment income was $7K.

Casteel Family Foundation at a glance

In short: Casteel Family Foundation gave $125K across 4 grants in 2025 (avg $31K), top state Washington. Source: 2025 IRS Form 990-PF.

Annual giving (2025)
$124,918
+730.1% vs 2024
Grants made (2025)
4
+300.0% vs 2024
Average grant
$31,230
+107.5% vs 2024
Median grant
$25,000
Total assets
$180,396
-38.1% vs 2024
Primary geography
Washington (40% of itemized 2025 grant dollars)
Latest 990 filing
Form 990-PF, 2025 View filing

Data from IRS Form 990-PF, 2025; updated September 2026.

Who Casteel Family Foundation funds

How this funder distributes its grants

Top Recipients

Top 4 recipients in 2025

Alliance for Tompotika Conservation: $50KAlliance for TompotikaConservation$50KThe Climate Center: $25KThe Climate Center$25KPlanned Parenthood: $25KPlanned Parenthood$25KACLU Foundation: $25KACLU Foundation$25K

The largest 2025 recipient was Alliance for Tompotika Conservation ($50K). Together the top 4 received $125K.

Grant Size Distribution

15 grants across all recorded years

13<$50K2$50–100K$100–250K$250–500K$500K–1M$1–5M$5M+

The most common grant size was under $50K: 13 grants of 15 (87%).

Geographic Focus

Where this funder awards grants

Grant Distribution by State

4states

Share of 2025 grant dollars across all 4 itemized grants.

Cities

Santa RosaNew YorkVashonCotatiOaklandSebastopolBrooklynMontgomerySeattle

How Casteel Family Foundation gives

  • Giving grew 110% from 2022 to 2025. Method
  • In 2025 it paid out 822% of its IRS minimum distribution (the 5% rule). Method

From the foundation's IRS Form 990-PF filings. Methodology.

Giving History

Giving Over Time

Total grant dollars and number of grants per year

$0$50K$100K$150K$200K9 grants2019 10 grants2020 3 grants2021 4 grants2022 3 grants2023 1 grant2024 4 grants2025

From 2019 to 2025, annual grant giving ranged from $15K (2024) to $161K (2020). In 2025 it made 4 grants totaling $125K.

Grants by year

Grant recipients and amounts by year

RecipientPurposeAmount
Alliance for Tompotika Conservation Vashon, WAGeneral Support$50,000
The Climate Center Santa Rosa, CAGeneral Support$25,000
Planned Parenthood New York, NYGeneral Support$25,000
ACLU Foundation New York, NYGeneral Support$24,918
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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$180,396$9,516$120,492$124,9184$128,557$6,605$15,645
2024$291,372$13,450$18,574$15,0481$18,763$10,069$16,235
2023$296,496$16,798$109,229$105,1303$108,883$13,181$17,767
2022$388,927$12,456$61,273$59,5284$63,803$9,795$19,695
2021$437,744$252,445$38,894$42,6883$45,424$191,651$16,122
2020$224,193$302,664$156,065$160,59910—$780$5,705
2019$77,594$132,680$55,085$45,0009—$69,544$3,297

Under IRS private-foundation payout rules, Casteel Family Foundation reported a distributable amount of $16K for 2025 — the minimum it must pay out in qualifying distributions.

Leadership & Key People

Officers and directors from IRS filings

Casteel Family Foundation is led by Michael Casteel, President & Treasurer on every filing since 2019; none of the 2 officers listed in 2025 report compensation.

Officers on the 2025 filing

  • Michael Casteel

    President & Treasurer

    On filings since 2019

    0.5 hrs/week

    No compensation reported

  • Cathy Casteel

    Vice President & Secretary

    On filings since 2019

    0.1 hrs/week

    No compensation reported

Data from IRS Form 990 filings, 2019–2025. "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 Casteel Family Foundation

How much does Casteel Family Foundation give each year?

Casteel Family Foundation gave $125K across 4 grants in 2025, according to its 2025 IRS Form 990-PF. In 2024 it gave $15K across 1 grant.

What is Casteel Family Foundation's typical grant size?

Casteel Family Foundation's median grant in 2025 was $25,000, and its average grant was $31,230, across 4 grants on its 2025 IRS Form 990-PF.

Where does Casteel Family Foundation give grants?

Casteel Family Foundation's top state is Washington, with 40% of the grant dollars itemized on its 2025 IRS Form 990-PF. The next largest states were New York (40%) and California (20%). The most frequent recipient cities were New York, NY (2 grants).

Does Casteel Family Foundation give general operating support?

Yes: 100% of Casteel Family Foundation's 2025 grants with a stated purpose (4 of 4) were for general or operating support, per its 2025 IRS Form 990-PF.

How large is Casteel Family Foundation?

Casteel Family Foundation reported $180K in total assets on its 2025 IRS Form 990-PF. It paid out $129K in qualifying distributions that year, against a required minimum of $16K (roughly 5% of its investment assets).

What is Casteel Family Foundation's EIN?

Casteel Family Foundation's EIN (Employer Identification Number) is 81-4318140. IRS Form 990 filing data is available on this page for 2019–2025.

Data last updated September 2026. Sourced from IRS Form 990-PF filings.

Data update history

(3)

When this profile's IRS filing data changed on Grantable

  1. Added Form 990-PF for fiscal year 2019 (received by the IRS September 3, 2020)
  2. Added Form 990-PF for fiscal year 2025 (received by the IRS May 6, 2026)
  3. IRS filings on file for fiscal years 2020–2024

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

Figures come from Casteel 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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