The Susan C Firestone Foundation

Private foundation · Grantmaker Paradise Valley, AZ EIN: 31-6556646

The Susan C Firestone Foundation is a private foundation, based in Paradise Valley, AZ. IRS filing data is available from 2019 through 2024. As of 2024, the organization holds $219K in total assets. In 2024, it awarded 3 grants totaling $14K. Net investment income was $10K.

The Susan C Firestone Foundation at a glance

In short: The Susan C Firestone Foundation gave $14K across 3 grants in 2024 (avg $5K), mostly in California. Source: 2024 IRS Form 990-PF.

Annual giving (2024)
$13,500
+0.0% vs 2023
Grants made (2024)
3
+0.0% vs 2023
Average grant
$4,500
+0.0% vs 2023
Median grant
$4,500
Total assets
$219,322
+1.7% vs 2023
Primary geography
California (67% of itemized 2024 grant dollars)
Latest 990 filing
Form 990-PF, 2024 View filing

Data from IRS Form 990-PF, 2024; updated October 2026.

Who The Susan C Firestone Foundation funds

How this funder distributes its grants

Top Recipients

Top 3 recipients in 2024

St Vincent Depaul: $5KSt Vincent Depaul$5KDirect Relief: $5KDirect Relief$5KCate School: $5KCate School$5K

The largest 2024 recipient was St Vincent Depaul ($5K). Together the top 3 received $14K.

Grant Size Distribution

14 grants across all recorded years

14<$50K$50–100K$100–250K$250–500K$500K–1M$1–5M$5M+

The most common grant size was under $50K: 14 grants of 14 (100%).

Geographic Focus

Where this funder awards grants

Grant Distribution by State

3states

Share of 2024 grant dollars across all 3 itemized grants.

Cities

Santa BarbaraPhoenixCharlottsvilleCarpentinaCarpinteriaCharlottesville

How The Susan C Firestone Foundation gives

  • Giving held roughly steady from 2021 to 2024 (+13%). Method
  • In 2024 it paid out 92% of its IRS minimum distribution (the 5% rule). Foundations have until the end of the next year to meet it. 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$5K$10K$15K3 grants2019 2 grants2020 3 grants2021 3 grants2022 3 grants2023 3 grants2024

From 2019 to 2024, annual grant giving ranged from $11K (2019) to $14K (2024). In 2024 it made 3 grants totaling $14K.

Grants by year

Grant recipients and amounts by year

RecipientPurposeAmount
St Vincent Depaul Phoenix, AZFood Bank$4,500
Direct Relief Santa Barbara, CAAid for Emergencies$4,500
Cate School Carpinteria, CAGrants for University of Virginia$4,500
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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
2024$219,322$25,239$18,090$13,5003$13,500$10,436$14,749
2023$215,612$11,581$17,723$13,5003$13,500$7,765$13,452
2022$218,285$14,064$17,695$13,5003$13,500$4,018$13,046
2021$221,916$37,300$15,626$12,0003$12,000$18,674$13,915
2020$200,242$17,738$14,491$11,4002—$4,647$11,541
2019$196,995$18,726$13,522$10,6003—$5,804$11,407

Under IRS private-foundation payout rules, The Susan C Firestone Foundation reported a distributable amount of $15K for 2024 — the minimum it must pay out in qualifying distributions.

Leadership & Key People

Officers and directors from IRS filings

The Susan C Firestone Foundation is led by Sarah Semegen, President on every filing since 2019; none of the 4 officers listed in 2024 report compensation.

Officers on the 2024 filing

  • Sarah Semegen

    President

    On filings since 2019

    No compensation reported

  • Daniel L. Semegen

    Vice President

    On filings since 2019

    No compensation reported

  • Mark H. Semegen

    Vice President

    On filings since 2019

    No compensation reported

  • Susan F. Semegen

    Vice President

    On filings since 2019

    No compensation reported

Data from IRS Form 990 filings, 2019–2024. "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 The Susan C Firestone Foundation

How much does The Susan C Firestone Foundation give each year?

The Susan C Firestone Foundation gave $14K across 3 grants in 2024, according to its 2024 IRS Form 990-PF. In 2023 it gave $14K across 3 grants.

What is The Susan C Firestone Foundation's typical grant size?

The Susan C Firestone Foundation's median grant in 2024 was $4,500, and its average grant was $4,500, across 3 grants on its 2024 IRS Form 990-PF.

Where does The Susan C Firestone Foundation give grants?

The Susan C Firestone Foundation gives mostly in California: 67% of the grant dollars itemized on its 2024 IRS Form 990-PF went to recipients there. The next largest state was Arizona (33%).

Does The Susan C Firestone Foundation give general operating support?

Not in 2024: none of the 3 grants with a stated purpose on The Susan C Firestone Foundation's 2024 IRS Form 990-PF were described as general or operating support.

How large is The Susan C Firestone Foundation?

The Susan C Firestone Foundation reported $219K in total assets on its 2024 IRS Form 990-PF. It paid out $14K in qualifying distributions that year, against a required minimum of $15K (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 is The Susan C Firestone Foundation's EIN?

The Susan C Firestone Foundation's EIN (Employer Identification Number) is 31-6556646. IRS Form 990 filing data is available on this page for 2019–2024.

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

Data update history

(2)

When this profile's IRS filing data changed on Grantable

  1. Updated Form 990-PF for fiscal year 2019 (received by the IRS March 10, 2020)
  2. IRS filings on file for fiscal years 2019–2024

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

Figures come from The Susan C Firestone 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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