Pamela and Richard Rigg Foundation

Private foundation · Grantmaker Castro Valley, CA EIN: 27-4911450

Pamela and Richard Rigg Foundation is a private foundation, based in Castro Valley, CA. IRS filing data is available from 2020 through 2025. As of 2025, the organization holds $2.7M in total assets. In 2025, it awarded 1 grant totaling $100K. Net investment income was $36K.

Pamela and Richard Rigg Foundation at a glance

In short: Pamela and Richard Rigg Foundation gave $100K across 1 grant in 2025 (avg $100K), mostly in California. Source: 2025 IRS Form 990-PF.

Annual giving (2025)
$100,000
+61.3% vs 2024
Grants made (2025)
1
-50.0% vs 2024
Average grant
$100,000
+222.6% vs 2024
Median grant
$100,000
Total assets
$2,702,066
+6.5% vs 2024
Primary geography
California (100% 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 Pamela and Richard Rigg Foundation funds

How this funder distributes its grants

Top Recipients

Top recipient in 2025

San Francisco Opera: $100KSan Francisco Opera$100K

The largest 2025 recipient was San Francisco Opera ($100K).

Grant Size Distribution

7 grants across all recorded years

3<$50K3$50–100K1$100–250K$250–500K$500K–1M$1–5M$5M+

The most common grant size was under $50K: 3 grants of 7 (43%).

Geographic Focus

Where this funder awards grants

Grant Distribution by State

3states

Share of the 2025 grant dollars on its one itemized grant.

Cities

San FranciscoDaytonIncline VillageLivermore

How Pamela and Richard Rigg Foundation gives

  • In 2025 it paid out 141% 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$150K6 grants2020 3 grants2021 0 grants2022 1 grant2023 2 grants2024 1 grant2025

From 2020 to 2025, annual grant giving ranged from $50K (2023) to $111K (2020). In 2025 it made 1 grant totaling $100K.

Grants by year

Grant recipients and amounts by year

RecipientPurposeAmount
San Francisco Opera San Francisco, CAGift Towards Annual Fund.$100,000
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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$2,702,066$106,108$108,551$100,0001$100,000$36,396$70,682
2024$2,536,284$119,777$62,322$62,0002$62,000$29,621$57,440
2023$2,335,203$-332,973$54,690$50,0001$50,000$21,358$40,317
2022$2,600,359$1,917,009$3,330———$19,447$39,520
2021$814,672$2,164$103,400$100,0003$100,000$2,164$41,820
2020$865,339—$116,275$111,0006——$46,672

Under IRS private-foundation payout rules, Pamela and Richard Rigg Foundation reported a distributable amount of $71K for 2025 — the minimum it must pay out in qualifying distributions.

Leadership & Key People

Officers and directors from IRS filings

Pamela and Richard Rigg Foundation is led by Chandra Rudd, President on the 2025 filing; none of the 3 officers listed in 2025 report compensation.

Officers on the 2025 filing

  • Chandra Rudd

    President

    New on the 2025 filing

    1 hr/week

    No compensation reported

  • Carolyn Dobel

    Secretary

    On filings since 2020

    1 hr/week

    No compensation reported

  • Pamela Rigg

    Treasurer

    On filings since 2024

    1 hr/week

    No compensation reported

Former officers (2)
  • Former: Richard Rigg (2024) — President
  • Former: Chandra Z. Kreuzer (2020–2023) — President

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 Pamela and Richard Rigg Foundation

How much does Pamela and Richard Rigg Foundation give each year?

Pamela and Richard Rigg Foundation gave $100K across 1 grant in 2025, according to its 2025 IRS Form 990-PF. In 2024 it gave $62K across 2 grants.

How large is Pamela and Richard Rigg Foundation?

Pamela and Richard Rigg Foundation reported $2.7M in total assets on its 2025 IRS Form 990-PF. It paid out $100K in qualifying distributions that year, against a required minimum of $71K (roughly 5% of its investment assets).

Where does Pamela and Richard Rigg Foundation operate?

Pamela and Richard Rigg Foundation has awarded grants in California, Nevada, Ohio.

What is Pamela and Richard Rigg Foundation's EIN?

Pamela and Richard Rigg Foundation's EIN (Employer Identification Number) is 27-4911450. IRS Form 990 filing data is available on this page for 2020–2025.

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

Data update history

(2)

When this profile's IRS filing data changed on Grantable

  1. Added Form 990-PF for fiscal year 2025 (received by the IRS July 15, 2026)
  2. 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 Pamela and Richard Rigg 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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