Esper A Petersen Foundation
501(c)(3) Donations tax-deductible
Only null% goes to programs Strong reserves Growing revenue
Esper A Petersen Foundation is a 501(c)(3) organization based in Grayslake, Illinois, registered in 1961, with $1,157,186 in FY2025 revenue. CharityIndex grades it C+.
1 E Belvidere Rd, Grayslake, IL, 60030 EIN 36-6125570 Since 1961
Revenue (FY2025)
$1.2M
▲ 3.6% vs prior year
Expenses (FY2025)
$1.2M
Net assets
$6.9M
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 Esper A Petersen 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 rating71 mo reserves · -1% 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 Esper A Petersen Foundation: 71 mo reserves · -1% 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 Esper A Petersen 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 Esper A Petersen Foundation: 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 $935K (FY2013) to $1.2M (FY2025) across 13 reported years.
Financial snapshot
Financial health & position (FY2025)
Liabilities $48KNet assets $6.9M
Operating margin
-1.3%
Spent more than it raised in the latest fiscal year.
Total assets
$7.0M
Total liabilities
$48K
Net assets
$6.9M
Financials by year
| Fiscal year | Revenue | Expenses | Net assets | Total assets | Form |
|---|---|---|---|---|---|
| 2025 | $1,157,186▲3.6% | $1,172,331▼5.4% | $6,923,174▲2.0% | $6,971,299▲1.9% | 990PF |
| 2024 | $1,116,977▲23.6% | $1,239,813▲26.1% | $6,787,324▼1.8% | $6,839,449▼1.8% | 990PF |
| 2023 | $904,059▲14.0% | $983,459▼5.5% | $6,910,160▼1.1% | $6,962,285▼1.1% | 990PF |
| 2022 | $793,073▼8.7% | $1,040,989▲15.7% | $6,989,560▼3.4% | $7,041,685▼3.4% | 990PF |
| 2021 | $868,567▲4.2% | $899,770▲6.4% | $7,237,476▼0.4% | $7,289,601▼0.5% | 990PF |
| 2020 | $833,312▼0.9% | $845,302▼48.7% | $7,268,679▼0.2% | $7,323,725▼0.1% | 990PF |
| 2019 | $840,493▼65.2% | $1,646,887▲110% | $7,280,669▼9.9% | $7,331,216▼9.8% | 990PF |
| 2018 | $2,413,817▲217% | $785,340▲10.2% | $8,077,063▲43.0% | $8,131,970▲42.7% | 990PF |
| 2017 | $762,374▲10.4% | $712,864▲11.4% | $5,650,080▲0.9% | $5,698,065▲0.8% | 990PF |
| 2016 | $690,247▼5.8% | $639,675▲3.9% | $5,600,570▲0.9% | $5,655,355▲0.7% | 990PF |
| 2015 | $732,937▼9.5% | $615,454▼42.6% | $5,549,998▲2.2% | $5,617,230▲2.4% | 990PF |
| 2014 | $810,077▼13.3% | $1,072,608▼21.3% | $5,432,515▲0.5% | $5,486,802▲0.4% | 990PF |
| 2013 | $934,861 | $1,362,805 | $5,407,846 | $5,466,046 | 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 Esper A Petersen Foundation a legitimate nonprofit?
- Yes. Esper A Petersen Foundation is a 501(c)(3) organization registered with the U.S. Internal Revenue Service under EIN 36-6125570, based in Grayslake, Illinois. Donations are tax-deductible.
- What is Esper A Petersen Foundation's EIN?
- Esper A Petersen Foundation's Employer Identification Number (EIN) is 36-6125570.
- How much revenue does Esper A Petersen Foundation report?
- Esper A Petersen Foundation reported $1,157,186 in total revenue on its fiscal year 2025 IRS Form 990 filing.
- What financial grade does Esper A Petersen Foundation have?
- CharityIndex grades Esper A Petersen Foundation C+, based on financial health (reserves and operating margin).
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Explore more
Data for Esper A Petersen Foundation (EIN 36-6125570) 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.