William S and Nancy E Thompson Foundation
Only null% goes to programs Strong reserves Declining revenue
William S and Nancy E Thompson Foundation is a 501(c)(3) organization based in Irvine, California, registered in 2006, with $7,753,615 in FY2024 revenue. CharityIndex grades it C+.
5251 California Ave Ste 110, Irvine, CA, 92617 EIN 20-6371108 Since 2006
Revenue (FY2024)
$7.8M
▲ 55.0% vs prior year
Philanthropy median: $168K
Expenses (FY2024)
$637K
Net assets
$72.3M
Employees
—
CharityIndex rating
One independent A+ to F grade from four published criteria, each scored separately from IRS filings and combined by weight.
C+
—Program efficiency40% of the ratingNo expense breakdown in filings
Measures how much of every dollar spent actually reaches programs, plus what it costs to raise $100 of donations. The worse of the two measures sets the letter (85%+ to programs is an A; under $15 to raise $100 is an A), averaged over the three most recent filings. Not scored for William S and Nancy E Thompson Foundation— this filing type doesn't report it, and the rating simply skips it (never counts it against the organization). See the exact thresholds →
B+Financial health25% of the rating1362 mo reserves · +92% margin
Measures whether the organization is built to last: how many months its reserves would cover expenses (3+ months earns an A-range score, but hoarding 5+ years of budget is capped) and whether it runs a surplus or a deficit. For William S and Nancy E Thompson Foundation: 1362 mo reserves · +92% margin earns a B+ on this criterion. See the exact thresholds →
—Governance25% of the ratingNot reported in this filing type
Checks how the organization is run, from its own Form 990: an independent board majority, a board of five or more, conflict-of-interest, whistleblower and document-retention policies, and independently audited financials. The share of disclosed checks that pass sets the letter. Not scored for William S and Nancy E Thompson Foundation— this filing type doesn't report it, and the rating simply skips it (never counts it against the organization). See the exact thresholds →
DTransparency10% of the rating1 of 5 disclosure signals
Counts five disclosure signals: a recent filing, a mission statement, program descriptions, a listed website, and the full expense breakdown. More disclosure, better letter. For William S and Nancy E Thompson Foundation: 1 of 5 disclosure signals earns a D on this criterion. See the exact thresholds →
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Contact & location
- Address
- 5251 California Ave Ste 110, Irvine, CA, 92617
- City
- Irvine
- State
- California
- Subcategory
- Private Foundations
Financial trends
Revenue grew from $6.6M (FY2015) to $7.8M (FY2024) across 9 reported years.
Financial snapshot
Financial health & position (FY2024)
Liabilities $6.8MNet assets $72.3M
Operating margin
91.8%
Revenue exceeded expenses in the latest fiscal year.
Total assets
$79.1M
Total liabilities
$6.8M
Net assets
$72.3M
Financials by year
| Fiscal year | Revenue | Expenses | Net assets | Total assets | Form |
|---|---|---|---|---|---|
| 2024 | $7,753,615▲55.0% | $636,827▼97.0% | $72,296,685▲30.5% | $79,098,128▲6.7% | 990PF |
| 2023 | $5,001,453▲33.8% | $20,890,979▲1372% | $55,380,606▼17.3% | $74,154,248▲6.7% | 990PF |
| 2022 | $3,737,085▼62.5% | $1,419,557▼82.3% | $66,954,238▼13.5% | $69,480,495▼17.5% | 990PF |
| 2021 | $9,975,811▲107% | $8,020,097▲303% | $77,444,399▲4.0% | $84,169,133▲12.7% | 990PF |
| 2020 | $4,814,141▼5.7% | -$3,949,652▼2354% | $74,445,215▲24.5% | $74,665,215▲15.0% | 990PF |
| 2019 | $5,106,872▲56.0% | -$160,930▼108% | $59,781,438▲9.8% | $64,951,697▲12.8% | 990PF |
| 2017 | $3,272,921▼57.3% | $1,918,139▼2.4% | $54,469,449▲1.1% | $57,595,243▲0.7% | 990PF |
| 2016 | $7,661,607▲16.7% | $1,965,064▼74.0% | $53,850,866▲14.6% | $57,185,306▲4.0% | 990PF |
| 2015 | $6,565,079 | $7,564,323 | $46,974,309 | $54,992,551 | 990PF |
Original Form 990 PDFs (the Form column) are served by ProPublica Nonprofit Explorer, as filed with the IRS. Create a free account to download the CSV report.
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Frequently asked questions
- Is William S and Nancy E Thompson Foundation a legitimate nonprofit?
- Yes. William S and Nancy E Thompson Foundation is a 501(c)(3) organization registered with the U.S. Internal Revenue Service under EIN 20-6371108, based in Irvine, California. Donations are tax-deductible.
- What is William S and Nancy E Thompson Foundation's EIN?
- William S and Nancy E Thompson Foundation's Employer Identification Number (EIN) is 20-6371108.
- How much revenue does William S and Nancy E Thompson Foundation report?
- William S and Nancy E Thompson Foundation reported $7,753,615 in total revenue on its fiscal year 2024 IRS Form 990 filing.
- What financial grade does William S and Nancy E Thompson Foundation have?
- CharityIndex grades William S and Nancy E Thompson Foundation C+, based on financial health (reserves and operating margin).
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Data for William S and Nancy E Thompson Foundation (EIN 20-6371108) comes from the IRS Business Master File and e-filed Form 990 returns, via CharityIndex. Figures reflect what the organization reported to the IRS for each fiscal year.