Nonprofit · EIN 45-2564798
WONDERFEST
Tax-exempt · CORTE MADERA, CA 94925
Financials
| Year ended | Form | Revenue | Expenses | Net income | Total assets | Liabilities | Net assets |
|---|---|---|---|---|---|---|---|
| December 31, 2025 | 990-EZ | $91,400 | $62,300 | $29,100 | $119,100 | $0 | $119,100 |
| December 31, 2024 | 990-EZ | $51,700 | $71,000 | -$19,300 | $90,000 | $0 | $90,000 |
| December 31, 2023 | 990-EZ | $68,400 | $69,800 | -$1,400 | $109,300 | $0 | $109,300 |
Financial details: 990-EZ for the year ended December 31, 2025
Revenue
- Contributions, gifts and grants
- $89,600
- Program service revenue
- $0
- Investment income
- $1,800
- Other revenue
- $0
Expenses
- Grants and similar amounts paid
- $0
- Compensation of officers, directors and key employees
- $0
- Salaries, compensation and benefits (total)
- $0
- Professional fees and payments to contractors
- $36,000
- Other expenses
- $26,300
- Program services (functional)
- $62,300
Balance sheet and other
- Total assets, start of year
- $90,000
- Total assets, end of year
- $119,100
- Total liabilities, end of year
- $0
- Net assets, end of year
- $119,100
- Cash, savings and investments
- $119,100
- Gross receipts
- $91,400
From the e-filed returns the IRS publishes as XML (latest three processing years; amended returns replace the original). PDF copies at the IRS.
Officers, directors and key employees
As listed on the 990-EZ for the year ended December 31, 2025, highest compensation first.
| Name | Title | Hours / week | Compensation |
|---|---|---|---|
| Wright Tucker Hiatt | Executive Director | 10 | $0 |
| Eric Yao | Board Chair & Technical Director | 1 | $0 |
| Jacob Bien | Board Member | 0.1 | $0 |
| Jack Conte | Board Member | 0.1 | $0 |
| Alexander Eccles | Board Member | 0.1 | $0 |
| Alexei Filippenko | Board Member | 0.1 | $0 |
| Maribel Fraser | Board Member | 0.1 | $0 |
| Juliana Gallin | Board Member | 0.1 | $0 |
| Kendra Kramlich | Board Member | 0.1 | $0 |
| Howard Rheingold | Board Member | 0.1 | $0 |
| Robert Strong | Board Member | 0.1 | $0 |
990-EZ for the year ended December 31, 2024: 11 people
| Name | Title | Hours / week | Compensation |
|---|---|---|---|
| Wright Tucker Hiatt | Executive Director | 10 | $0 |
| Eric Yao | Board Chair & Technical Director | 1.5 | $0 |
| Jacob Bien | Board Member | 0.1 | $0 |
| Jack Conte | Board Member | 0.1 | $0 |
| Alexander Eccles | Board Member | 0.1 | $0 |
| Alexei Filippenko | Board Member | 0.1 | $0 |
| Maribel Fraser | Board Member | 0.1 | $0 |
| Juliana Gallin | Board Member | 0.1 | $0 |
| Kendra Kramlich | Board Member | 0.1 | $0 |
| Howard Rheingold | Board Member | 0.1 | $0 |
| Robert Strong | Board Member | 0.1 | $0 |
990-EZ for the year ended December 31, 2023: 11 people
| Name | Title | Hours / week | Compensation |
|---|---|---|---|
| Wright Tucker Hiatt | Executive Director | 10 | $0 |
| Eric Yao | Board Chair & Technical Director | 1.5 | $0 |
| Jacob Bien | Board Member | 0.1 | $0 |
| Jack Conte | Board Member | 0.1 | $0 |
| Alexander Eccles | Board Member | 0.1 | $0 |
| Alexei Filippenko | Board Member | 0.1 | $0 |
| Maribel Fraser | Board Member | 0.1 | $0 |
| Juliana Gallin | Board Member | 0.1 | $0 |
| Kendra Kramlich | Board Member | 0.1 | $0 |
| Howard Rheingold | Board Member | 0.05 | $0 |
| Robert Strong | Board Member | 0.1 | $0 |
Address and contacts
- Address (IRS master file)
- 47 ALTA WAY, CORTE MADERA, CA 94925-1501
- In care of
- % WRIGHT HIATT JR
- Mailing address (990-N for 2016)
- 47 Alta Way, Corte Madera CA 94925
- Principal officer (990-N for 2016)
- Wright Hiatt Jr, 47 Alta Way, Corte Madera CA 94925
- Signed the 990-EZ
- Wright Hiatt, Executive Director
- Phone
- (415) 577-1126
- Website
- wonderfest.org
California records
California keeps its own records of charities and corporations. Search them by EIN 45-2564798 or by the name WONDERFEST.
- Attorney General, Registry of Charities and Fundraisers
- Registration status and filed reports (CT-TR-1, RRF-1)
- Secretary of State, bizfile Online
- Corporation status, entity number, agent for service
- Franchise Tax Board
- Entity status letter (state tax exemption, good standing)
Mission
Informal science education
Program accomplishments
- Production (or co-production) of 30 public science presentations (and associated online video) serving some 5,000 individuals.Expenses $30,800
- Production of "Science Envoy Program" in science communication for one dozen SF Bay Area science PhD students, serving the outreach careers of those future researchers and the thousands of individuals they will teach and inspire.Expenses $22,300
- Production and presentation of the "Carl Sagan Prize for Science Popularization," inspiring Bay Area researchers to share their science insights with the local area ... and world.Expenses $9,200
What it must file and when
IRS records say it files Form 990 or 990-EZ. Based on its last return; a smaller organization may file the 990-N. Its accounting year ends in December, so each return is due on the 15th day of the 5th month after that.
| Tax year | Year ended | Due | IRS public records |
|---|---|---|---|
| 2025 | December 31, 2025 | May 15, 2026 | 990-EZ on file |
| 2024 | December 31, 2024 | May 15, 2025 | 990-EZ on file |
| 2023 | December 31, 2023 | May 15, 2024 | 990-EZ on file |
IRS record
- EIN
- 45-2564798
- Tax-exempt status
- 501(c)(3): Charitable, religious, educational or scientific organization
- Foundation status
- Publicly supported organization (170(b)(1)(A)(vi))
- Donations deductible (Pub 78)
- Public charity, 50% deduction limit
- Exempt since
- 2012
- Accounting year ends
- December
- Files
- Form 990 or 990-EZ
- Category (NTEE)
- Science and technology (U20)
- Assets (IRS master file)
- $119,100
- Income (IRS master file)
- $91,400
Filing history
| Form | Year ended | Revenue | Expenses | Assets | Return |
|---|---|---|---|---|---|
| 990-EZ | December 2025 | $91,400 | $62,300 | $119,100 | XML |
| 990-EZ | December 2024 | $51,700 | $71,000 | $90,000 | XML |
| 990-EZ | December 2023 | $68,400 | $69,800 | $109,300 | XML |
| 990-EZ | December 2022 | – | – | – | IRS |
| 990-EZ | December 2021 | – | – | – | IRS |
| 990-N for 2016 Officer: Wright Hiatt Jr | December 31, 2016 | ≤ $50,000 receipts | – | – | e-Postcard |
990-N: the IRS bulk file holds only the latest e-Postcard per organization; earlier years come from archived copies of that file since 2020 and can have gaps (the IRS e-Postcard search lists every one). 990, 990-EZ, 990-PF, 990-T: every e-filed return in the IRS e-file index since 2019; XML for the latest three processing years, amounts from the IRS Statistics of Income extracts before that. PDF copies and determination letters at the IRS (search EIN 45-2564798).
Questions about WONDERFEST
- What is the EIN of WONDERFEST?
- The employer identification number (EIN) of WONDERFEST is 45-2564798.
- Is WONDERFEST tax-exempt?
- Yes. The IRS lists it as tax-exempt under section 501(c)(3) since 2012.
- Are donations to WONDERFEST tax-deductible?
- Yes. It is listed in IRS Publication 78 (Public charity, 50% deduction limit).
- Which annual return does WONDERFEST file?
- Form 990 or 990-EZ. Based on its last return; a smaller organization may file the 990-N.
- When is the next return of WONDERFEST due?
- The return for tax year 2026 (the year ending December 31, 2026) is due May 17, 2027. Form 8868 extends it by six months; the 990-N cannot be extended.
- When did WONDERFEST last file with the IRS?
- The latest return in the IRS public files is the 990-EZ for the year ended December 2025.
- Who is the principal officer of WONDERFEST?
- The 990-N for 2016 names Wright Hiatt Jr.
- Who are the officers and directors of WONDERFEST?
- The 990-EZ for the year ended December 31, 2025 lists 11 people; 0 received compensation from the organization.
- How much revenue does WONDERFEST have?
- On its 990-EZ for the year ended December 31, 2025 it reported revenue of $91,400, expenses of $62,300 and total assets of $119,100 at year end.
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All nonprofits in CORTE MADERA · California · Science and technology