Is it real?
Yes. Never revoked by the IRS. Latest filing on record: FY2025. IRS ruling in Jun 2018.
IRS Pub. 78 · IRS Auto-Revocation List · IRS Business Master File
Where the money goes
71 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
13 people listed on the 990; $306K paid to officers and key staff.
Caleb Cheung’s $145K as Chief Learning Officer is at the 84th percentile of top reported officer pay among 312 $100K–1M science & technology 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 · 4 named individuals · Part VII
| Name | FY2025 | FY2024 | FY2023 | FY2022 | FY2021 |
|---|---|---|---|---|---|
| Caleb Cheung | $144,955 | $144,955 | $134,633 | $144,217 | $138,217 |
| Cynthia Margulis | $114,111 | — | — | — | — |
| Michael Mosby | $47,000 | — | — | — | — |
| Katherine Young | — | — | — | — | $42,739 |
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
Inspires and nurtures everyday exploration for lifelong engagement with science and technology.
Questions for Quest Science Center
Your first name shows with your question. Quest Science Center answers here, for everyone.
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Community Science and Engineering Programs
Quest fielded hands-on activities at over 50 events throughout the tri-valley and surrounding region, reaching over 20,000 attendees. These events included: science at stockmen's park, student and family science events at schools, library events, various community, festival, and holiday events, and several events sponsored by local…
Tri-Valley Innovation Fair
Quest planned and led the 7TH annual tri-valley innovation fair which was held at the alameda county fairgrounds. This popular event had 3,000 attendees in 2025, primarily youth and their families to see hands-on exhibits and demonstrations that showcased innovative regional science, technology, and education organizations.
Planetary Health/Sustainability Program
Quest ran a planetary health program with 50 high school volunteer interns from the tri-valley region. Projects included urban heat mapping, carbon garden, water management, stopwaste art, and school district climate literacy curriculum.
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 | $427K | $383K |
| InvestmentsLn 11–13 | $121K | $80K |
| Land, buildings, equipmentLn 10c | $45K | $35K |
| Total assetsLn 16 | $608K | $547K |
| LiabilitiesLn 26 | $22K | $7K |
| Net assetsLn 32 | $586K | $540K |
| Line | Total | Programs | Management | Fundraising |
|---|---|---|---|---|
| Pay of current officers, directors and key staffLn 5 | $306K | $167K | $28K | $111K |
| Other salaries and wagesLn 7 | $77K | $77K | $604 | |
| Other employee benefitsLn 9 | $4K | −$925 | $5K | |
| Payroll taxesLn 10 | $26K | $18K | $46 | $8K |
| Legal feesLn 11b | $77 | $77 | ||
| Accounting feesLn 11c | $8K | $8K | ||
| Other fees for servicesLn 11g | $149K | $125K | $2K | $22K |
| Advertising and promotionLn 12 | $38K | $38K | ||
| Information technologyLn 14 | $14K | $642 | $4K | $9K |
| OccupancyLn 16 | $36K | $30K | $5K | |
| TravelLn 17 | $3K | $3K | $138 | |
| Depreciation, depletion and amortizationLn 22 | $10K | $10K | ||
| InsuranceLn 23 | $7K | $7K | ||
| Other expenses (24a–d)Ln 24 | $81K | $73K | $4K | $4K |
| Total functional expensesLn 25 | $760K | $541K | $60K | $159K |
Filing history
| Year | Money in | Money out | In minus out | Net assets | Download |
|---|---|---|---|---|---|
| FY2025 Latest Viewing | $713K | $760K | −$46K | $540K | 990 PDF |
| FY2024 | $601K | $568K | $33K | $586K | 990 PDF |
| FY2023 | $600K | $418K | $183K | $554K | 990 PDF |
| FY2022 | $564K | $376K | $188K | $371K | 990 PDF |
| FY2021 | $504K | $507K | −$3K | $184K | 990 PDF |
| FY2020 | $296K | $308K | −$11K | $187K | 990 PDF |
| FY2019 | $403K | $325K | $79K | $200K | 990 PDF |
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Schedules filed Part IV
See the full FY2025 990 (6 parts)
Part I · Summary $713,386 revenue, 12 lines filed
Part VI · Governance 10 of 10 board members independent, 1 to look at
Part VIII · Statement of revenue $713,386 across 8 lines filed
Part IX · Statement of functional expenses $759,744 across 14 lines filed
Part X · Balance sheet $546,985 assets, 13 lines filed
Part XI · Reconciliation of net assets $540,106 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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