Is it real?
Yes. Never revoked by the IRS. Latest filing on record: FY2025. IRS ruling in Feb 1998.
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.
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Who runs it and what they're paid
25 people listed on the 990; $1.8M paid to officers and key staff.
Compensation history total reportable pay by year · 8 named individuals · Part VII
| Name | FY2025 | FY2024 | FY2023 | FY2022 | FY2021 | FY2020 |
|---|---|---|---|---|---|---|
| Nisa Frank | $375,000 | $345,016 | $309,649 | $267,286 | $266,506 | — |
| Soo Zee Park | $241,802 | $235,682 | $219,823 | $197,937 | $197,157 | — |
| Gregory Engel | — | — | — | — | — | $215,750 |
| Abigail Guinn | $189,000 | $189,190 | $175,025 | $156,207 | $155,426 | $152,676 |
| Katherine Dinh January - June | — | — | — | — | — | $183,775 |
| Nathan Tanaka | $165,000 | $160,974 | $151,041 | $130,292 | $129,512 | $112,481 |
| Quise Rodriguez Edwards | $163,001 | $158,667 | — | — | — | — |
| Renee Thompson | $157,501 | $153,438 | $143,479 | $131,220 | $130,440 | $126,360 |
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 2No
- Top official's pay set by an independent reviewPt VI · Ln 15aYes
Programs and updates
Educates children TK-8th grade, fostering deep understanding, strong skills, and independent thinking.
Questions for Prospect Sierra School
Your first name shows with your question. Prospect Sierra School answers here, for everyone.
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Provide education for school age children in grades transitional kindergarten through 8TH.
Funders
Who pays for it.
From grant filings on record. Receipts are incomplete: individual donors are never listed.
Grants
By the numbers
The FY2024 990, line by line.
Download 990
| Line | Start FY24 | End FY24 |
|---|---|---|
| Cash and savingsLn 1–2 | $6.0M | $4.2M |
| InvestmentsLn 11–13 | $11.4M | $13.2M |
| Land, buildings, equipmentLn 10c | $10.9M | $10.3M |
| Total assetsLn 16 | $30.8M | $29.9M |
| LiabilitiesLn 26 | $17.0M | $16.6M |
| Net assetsLn 32 | $13.7M | $13.2M |
| Line | Total | Programs | Management | Fundraising |
|---|---|---|---|---|
| Grants to domestic individualsLn 2 | $2.9M | $2.9M | ||
| Pay of current officers, directors and key staffLn 5 | $1.1M | $1.1M | ||
| Other salaries and wagesLn 7 | $9.1M | $7.8M | $1.0M | $305K |
| Other employee benefitsLn 9 | $1.8M | $1.5M | $272K | $37K |
| Payroll taxesLn 10 | $732K | $560K | $149K | $23K |
| Other fees for servicesLn 11g | $179K | $15K | $165K | |
| Information technologyLn 14 | $210K | $139K | $71K | |
| OccupancyLn 16 | $130K | $130K | ||
| InterestLn 20 | $315K | $315K | ||
| Depreciation, depletion and amortizationLn 22 | $864K | $864K | ||
| InsuranceLn 23 | $190K | $40K | $150K | |
| Other expenses (24a–d)Ln 24 | $1.3M | $1.3M | $3K | |
| All other expensesLn 24e | $557K | $307K | $221K | $28K |
| Total functional expensesLn 25 | $19.5M | $15.9M | $3.2M | $393K |
Filing history
| Year | Money in | Money out | In minus out | Net assets | Download |
|---|---|---|---|---|---|
| FY2025 Latest | $21.0M | $20.0M | $976K | $14.9M | 990 PDF |
| FY2024 Viewing | $17.9M | $19.5M | −$1.6M | $13.2M | 990 PDF |
| FY2023 | $18.4M | $18.4M | $17K | $13.7M | 990 PDF |
| FY2022 | $17.9M | $16.7M | $1.1M | $12.6M | 990 PDF |
| FY2021 | $16.6M | $16.1M | $427K | $13.4M | 990 PDF |
| FY2020 | $15.6M | $14.7M | $908K | $12.0M | 990 PDF |
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Schedules filed Part IV
See the full FY2024 990 (6 parts)
Part I · Summary $17,853,464 revenue, 12 lines filed
Part VI · Governance 16 of 16 board members independent, no flags
Part VIII · Statement of revenue $17,853,464 across 8 lines filed
Part IX · Statement of functional expenses $19,469,699 across 13 lines filed
Part X · Balance sheet $29,872,479 assets, 15 lines filed
Part XI · Reconciliation of net assets $13,249,172 net assets at year end
Form 990 e-file (XML) FY2024 from the IRS · Classification, formation year and address from the IRS Business Master File
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