Is it real?
Yes. Never revoked by the IRS. Latest filing on record: FY2025. IRS ruling in 0000.
IRS Pub. 78 · IRS Auto-Revocation List · IRS Business Master File
Where the money goes
82 cents of each dollar spent went to programs.
Form 990 Part IX, line 25, columns B–D. Every line is in By the numbers.
Who runs it and what they're paid
7 people listed on the 990; $197K paid to officers and key staff.
Compensation history total reportable pay by year · 6 named individuals · Part VII
| Name | FY2025 | FY2024 | FY2023 | FY2022 | FY2021 |
|---|---|---|---|---|---|
| Therese Colby | $102,691 | $99,700 | $92,665 | — | — |
| Therese Colby | — | — | — | $85,952 | $74,624 |
| James Hilgenbrink | $57,942 | $56,254 | $53,575 | — | — |
| Norine Colby | — | — | — | $44,863 | $52,000 |
| James Hilgenbrink | — | — | — | $51,889 | $51,046 |
| Norine Colby | $36,760 | $35,690 | $33,990 | — | — |
Total reportable compensation (Form 990 Part VII column D / Schedule J column E) by filing year, matched by name within this organization. The Schedule J base / bonus / deferred breakdown is not parsed into this dataset.
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Questions the 990 asks
The form asks each of these directly. These are the filed answers.
- Family or business ties among officersPt VI · Ln 2Yes
- Top official's pay set by an independent reviewPt VI · Ln 15aYes
Programs and updates
Educates children using the Montessori method for early learning and elementary school.
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The school provided preschool and elementary school services to 136 children during the 2024-2025 school year. It is the mission of the Montessori School of Lemont to provide for the physical, intellectual, emotional and spiritual education of children ages 3-15 years following the methods and philosophy of Dr. Maria Montessori.
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Funders
Who pays for it.
From grant filings on record. Receipts are incomplete: individual donors are never listed.
Grants
By the numbers
The FY2025 990, line by line.
Download 990
| Line | Start FY25 | End FY25 |
|---|---|---|
| Cash and savingsLn 1–2 | $1.9M | $1.9M |
| Land, buildings, equipmentLn 10c | $1.6M | $1.6M |
| Total assetsLn 16 | $3.5M | $3.6M |
| LiabilitiesLn 26 | $1.5M | $1.4M |
| Net assetsLn 32 | $2.0M | $2.2M |
| Line | Total | Programs | Management | Fundraising |
|---|---|---|---|---|
| Pay of current officers, directors and key staffLn 5 | $222K | $184K | $34K | $3K |
| Other salaries and wagesLn 7 | $572K | $475K | $89K | $8K |
| Pension plan contributionsLn 8 | $10K | $8K | $2K | $124 |
| Other employee benefitsLn 9 | $79K | $67K | $11K | $1K |
| Payroll taxesLn 10 | $58K | $47K | $10K | $771 |
| Accounting feesLn 11c | $8K | $8K | ||
| Other fees for servicesLn 11g | $17K | $17K | ||
| Advertising and promotionLn 12 | $6K | $6K | ||
| Office expensesLn 13 | $36K | $34K | $2K | $142 |
| OccupancyLn 16 | $83K | $69K | $13K | $1K |
| Conferences, conventions and meetingsLn 19 | $2K | $2K | ||
| InterestLn 20 | $47K | $39K | $7K | $670 |
| Depreciation, depletion and amortizationLn 22 | $123K | $102K | $19K | $2K |
| InsuranceLn 23 | $13K | $10K | $2K | $179 |
| Other expenses (24a–d)Ln 24 | $90K | $73K | $16K | $460 |
| All other expensesLn 24e | $14K | $14K | $598 | |
| Total functional expensesLn 25 | $1.4M | $1.1M | $236K | $18K |
Filing history
| Year | Money in | Money out | In minus out | Net assets | Download |
|---|---|---|---|---|---|
| FY2025 Latest Viewing | $1.6M | $1.4M | $208K | $2.2M | 990 PDF |
| FY2024 | $1.6M | $1.3M | $311K | $2.0M | 990 PDF |
| FY2023 | $1.6M | $1.2M | $361K | $1.7M | 990 PDF |
| FY2022 | $1.4M | $1.2M | $276K | $1.3M | 990 PDF |
| FY2021 | $1.2M | $1.1M | $61K | $1.0M | 990 PDF |
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Schedules filed Part IV
See the full FY2025 990 (4 parts)
Part VIII · Statement of revenue $1,587,467 across 6 lines filed
Part IX · Statement of functional expenses $1,379,557 across 16 lines filed
Part X · Balance sheet $3,553,631 assets, 13 lines filed
Part XI · Reconciliation of net assets $2,177,176 net assets at year end
Form 990 e-file (XML) FY2025 from the IRS · Classification, formation year and address from the IRS Business Master File
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