Is it real?
Yes. Never revoked by the IRS. Latest filing on record: FY2025. IRS ruling in Nov 1933.
IRS Pub. 78 · IRS Auto-Revocation List · IRS Business Master File
Where the money goes
83 cents of each dollar spent went to programs.
Form 990 Part IX, line 25, columns B–D. Every line is in By the numbers.
Something off? Claim to add context
Who runs it and what they're paid
32 people listed on the 990; $1.5M paid to officers and key staff.
Jonathan Downs’s $469K as Head of School is at the 86th percentile of top reported officer pay among 3683 $10–100M education nonprofits. Peer set: organizations in the same NTEE major field of work and revenue-size band, compared on each org’s own highest-paid officer/key-employee, from Form 990 Part VII / 990-PF Part VIII. Descriptive placement, not a verdict on whether the pay is appropriate.
Compensation history total reportable pay by year · 8 named individuals · Part VII
| Name | FY2025 | FY2024 | FY2023 | FY2022 | FY2021 | FY2020 |
|---|---|---|---|---|---|---|
| Jonathan Downs | $468,758 | $356,785 | $340,066 | $256,777 | $213,733 | $194,698 |
| Drew Casertano | — | — | $309,000 | $448,060 | $429,737 | $397,429 |
| Jeffrey Smith | $234,953 | $216,372 | $203,704 | $189,114 | $186,769 | $180,267 |
| Robert Anthony | — | $152,585 | $161,184 | $167,680 | $152,957 | $203,926 |
| Nancy Stahl | $202,352 | $199,599 | $194,047 | $190,931 | $196,168 | $184,195 |
| Natalie Smith | $168,400 | — | — | — | — | — |
| William Hardy | — | — | — | — | — | $129,544 |
| Jarratt Clarke | $125,277 | $121,471 | $110,096 | — | — | — |
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.
See Millbrook School executive salaries →Questions the 990 asks
The form asks each of these directly. These are the filed answers.
- Family or business ties among officersPt VI · Ln 2No
- Top official's pay set by an independent reviewPt VI · Ln 15aYes
Programs and updates
Provides college preparatory education to boarding and day students.
Questions for Millbrook School
Your first name shows with your question. Millbrook School answers here, for everyone.
Independent secondary education for approximately 328 boarding and day students.
Funders
Who pays for it.
From grant filings on record. Receipts are incomplete: individual donors are never listed.
Grants
By the numbers
The FY2020 990, line by line.
Download 990
| Line | FY20 | FY19 | FY18 | FY17 | FY16 |
|---|---|---|---|---|---|
| End of yearLn 1g | $49.7M | $49.5M | $46.8M | $39.7M | $33.6M |
| Given inLn 1b | $1.3M | $2.3M | $6.6M | $3.8M | $3.3M |
| SpentLn 1d–1f | $1.6M | $1.4M | $1.7M | $1.3M | $1.2M |
| Line | Start FY20 | End FY20 |
|---|---|---|
| Cash and savingsLn 1–2 | $11.7M | $11.9M |
| InvestmentsLn 11–13 | $47.5M | $49.9M |
| Land, buildings, equipmentLn 10c | $69.7M | $68.8M |
| Total assetsLn 16 | $137.0M | $138.6M |
| LiabilitiesLn 26 | $26.6M | $23.7M |
| Net assetsLn 32 | $110.5M | $115.0M |
| Line | Total | Programs | Management | Fundraising |
|---|---|---|---|---|
| Grants to domestic organizationsLn 1 | $20K | $20K | ||
| Grants to domestic individualsLn 2 | $3.9M | $3.9M | ||
| Pay of current officers, directors and key staffLn 5 | $901K | $71K | $543K | $287K |
| Pay of disqualified personsLn 6 | $179K | $179K | ||
| Other salaries and wagesLn 7 | $7.5M | $6.6M | $449K | $490K |
| Pension plan contributionsLn 8 | $526K | $471K | $3K | $52K |
| Other employee benefitsLn 9 | $2.1M | $1.8M | $117K | $148K |
| Payroll taxesLn 10 | $577K | $465K | $62K | $50K |
| Legal feesLn 11b | $2K | $2K | ||
| Accounting feesLn 11c | $74K | $74K | ||
| Professional fundraising feesLn 11e | $11K | $11K | ||
| Investment management feesLn 11f | $171K | $171K | ||
| Office expensesLn 13 | $49K | $27K | $18K | $5K |
| OccupancyLn 16 | $621K | $508K | $102K | $11K |
| InterestLn 20 | $551K | $551K | ||
| Depreciation, depletion and amortizationLn 22 | $2.9M | $2.1M | $732K | $146K |
| InsuranceLn 23 | $421K | $379K | $42K | |
| Other expenses (24a–d)Ln 24 | $4.2M | $4.0M | $114K | $49K |
| All other expensesLn 24e | $1.2M | $369K | $590K | $265K |
| Total functional expensesLn 25 | $25.9M | $21.4M | $3.0M | $1.5M |
Filing history
| Year | Money in | Money out | In minus out | Net assets | Download |
|---|---|---|---|---|---|
| FY2025 LatestFiled with the IRS Apr 17, 2026 | $45.4M | $34.9M | $10.6M | $150.3M | 990 PDF |
| FY2024Filed with the IRS May 1, 2025 | $35.7M | $33.8M | $1.8M | $138.9M | 990 PDF |
| FY2023Filed with the IRS Mar 7, 2024 | $33.3M | $33.0M | $285K | $131.6M | 990 PDF |
| FY2022 | $28.8M | $30.2M | −$1.4M | $125.9M | 990 PDF |
| FY2021Filed with the IRS Feb 16, 2022 | $39.8M | $30.0M | $9.8M | $139.0M | 990 PDF |
| FY2020 ViewingFiled with the IRS Feb 9, 2021 | $30.1M | $25.9M | $4.2M | $115.0M | 990 PDF |
Schedules filed Part IV
See the full FY2020 990 (6 parts)
Part I · Summary $30,124,599 revenue, 12 lines filed
Part VI · Governance 24 of 25 board members independent, no flags
Part VIII · Statement of revenue $30,124,599 across 8 lines filed
Part IX · Statement of functional expenses $25,922,165 across 19 lines filed
Part X · Balance sheet $138,607,846 assets, 20 lines filed
Part XI · Reconciliation of net assets $114,952,284 net assets at year end
Form 990 e-file (XML) FY2020 from the IRS · Classification, formation year and address from the IRS Business Master File
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