William J and Sally R Siegel Foundation Ltd
501(c)(3) Donations tax-deductible
Only null% goes to programs Strong reserves Growing revenue
William J and Sally R Siegel Foundation Ltd is a 501(c)(3) organization based in Rockville, Maryland, registered in 1991, with $171,204 in FY2025 revenue. CharityIndex grades it C+.
14936 Waterway Dr, Rockville, MD, 20853 EIN 52-1708205 Since 1991
Revenue (FY2025)
$171K
▼ 17.6% vs prior year
Expenses (FY2025)
$105K
Net assets
$2.4M
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 J and Sally R Siegel Foundation Ltd— 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 rating273 mo reserves · +39% 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 J and Sally R Siegel Foundation Ltd: 273 mo reserves · +39% 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 J and Sally R Siegel Foundation Ltd— 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 J and Sally R Siegel Foundation Ltd: 1 of 5 disclosure signals earns a D on this criterion. See the exact thresholds →
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Contact & location
Financial trends
Revenue grew from $55K (FY2013) to $171K (FY2025) across 13 reported years.
Financial snapshot
Financial health & position (FY2025)
Liabilities $0Net assets $2.4M
Operating margin
38.6%
Revenue exceeded expenses in the latest fiscal year.
Total assets
$2.4M
Total liabilities
$0
Net assets
$2.4M
Financials by year
| Fiscal year | Revenue | Expenses | Net assets | Total assets | Form |
|---|---|---|---|---|---|
| 2025 | $171,204▼17.6% | $105,187▼5.2% | $2,390,381▲9.7% | $2,390,381▲9.7% | 990PF |
| 2024 | $207,754▼27.9% | $110,971▲12.1% | $2,178,528▲13.9% | $2,178,528▲13.9% | 990PF |
| 2023 | $288,261▲286% | $98,999▼5.6% | $1,913,181▲12.3% | $1,913,181▲12.3% | 990PF |
| 2022 | $74,595▼31.7% | $104,886▲23.8% | $1,703,391▼20.9% | $1,703,391▼20.9% | 990PF |
| 2021 | $109,186▲56.3% | $84,738▲10.7% | $2,152,167▲15.8% | $2,152,200▲15.8% | 990PF |
| 2020 | $69,835▼67.5% | $76,577▼15.6% | $1,857,781▲9.2% | $1,857,781▲9.2% | 990PF |
| 2019 | $215,157▲452% | $90,680▲24.4% | $1,700,574▲19.4% | $1,700,574▲19.4% | 990PF |
| 2018 | $38,961▼18.6% | $72,885▼1.9% | $1,424,235▼11.3% | $1,424,235▼11.3% | 990PF |
| 2017 | $47,843▼46.3% | $74,325▲1.5% | $1,606,446▲13.2% | $1,606,446▲13.2% | 990PF |
| 2016 | $89,111▲51.8% | $73,217▲7.9% | $1,419,350▲5.6% | $1,419,350▲5.6% | 990PF |
| 2015 | $58,696▲35.1% | $67,868▲13.4% | $1,343,967▼4.1% | $1,343,967▼4.1% | 990PF |
| 2014 | $43,433▼21.5% | $59,829▼2.4% | $1,401,525▲3.7% | $1,401,525▲3.7% | 990PF |
| 2013 | $55,327 | $61,271▲22.8% | $1,350,955▲21.1% | $1,350,955▲21.1% | 990PF |
| 2012 | — | $49,880▼20.8% | $1,115,595▲5.5% | $1,115,595▲5.5% | 990PF |
| 2011 | — | $62,949 | $1,057,476 | $1,057,476 | 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.
Frequently asked questions
- Is William J and Sally R Siegel Foundation Ltd a legitimate nonprofit?
- Yes. William J and Sally R Siegel Foundation Ltd is a 501(c)(3) organization registered with the U.S. Internal Revenue Service under EIN 52-1708205, based in Rockville, Maryland. Donations are tax-deductible.
- What is William J and Sally R Siegel Foundation Ltd's EIN?
- William J and Sally R Siegel Foundation Ltd's Employer Identification Number (EIN) is 52-1708205.
- How much revenue does William J and Sally R Siegel Foundation Ltd report?
- William J and Sally R Siegel Foundation Ltd reported $171,204 in total revenue on its fiscal year 2025 IRS Form 990 filing.
- What financial grade does William J and Sally R Siegel Foundation Ltd have?
- CharityIndex grades William J and Sally R Siegel Foundation Ltd C+, based on financial health (reserves and operating margin).
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Data for William J and Sally R Siegel Foundation Ltd (EIN 52-1708205) 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.