Wonderfest

Claim
Publicly-supported charity (509(a)(2))
IRS IRS 990 website_scrape Charity Navigator

🇺🇸 Corte Madera, CA United States · EIN 452564798

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Production (or co-production) of 35 public science presentations Production of "Science Envoy Program" in science communication for SF Bay Area science PhD students Production and presentation of "Carl Sagan Prize for Science Popularization"

Wonderfest is a u20 nonprofit based in Corte Madera, United States, with a GiveRadar trust score of 65/100 (EIN: 452564798). View the full profile on GiveRadar for financial data, officer records, and transparency ratings.

Mission

Informal science education

education
65 / 100

Moderate

Based on financial health, governance, verification, public sentiment, and data completeness.

Financial Health
+20/30
Governance
+10/25
Verification
+15/20
Sentiment
0/15
Data Completeness
+10/10

Financials, News & Reviews

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Profile completeness: 75% Good

Data sourced from: Irs, Irs_990, Website_scrape, Charity_navigator

Last updated: Mar 25, 2026 22:32

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Frequently asked questions

Is Wonderfest a legitimate charity?
Wonderfest is a registered u20 nonprofit based in Corte Madera, CA, United States. It is registered with the Internal Revenue Service (IRS). Its EIN is 452564798. It has a GiveRadar trust score of 65/100, indicating good financial health. The organization reports $52K in annual revenue. 33 officers and directors are publicly disclosed. No red flags have been detected.
What is Wonderfest's trust score?
Wonderfest has a GiveRadar trust score of 65/100. This score is calculated from financial health (30%), governance (25%), verification status (20%), public sentiment (15%), and data completeness (10%). A score of 65 indicates solid fundamentals with room for improvement in some areas such as data completeness or governance disclosure. The charity allocates 100% of expenses to programs, which contributes positively to its score. For comparison, the average trust score for u20 charities in United States is 63/100.
Where is Wonderfest located?
Wonderfest is located in Corte Madera, CA, United States. Its registered address is 47 ALTA WAY.
How does Wonderfest spend its money?
Based on official tax filings, Wonderfest has $52K in annual revenue. It allocates 100% of expenses to programs and services. This is above the average of 20% for u20 charities in United States. Its revenue is below the peer average of $2M. Create a free GiveRadar account to view the complete financial breakdown with year-over-year trends.
What type of charity is Wonderfest?
Wonderfest is classified as a U20 organization, registered in United States. It operates as a Publicly-supported charity (509(a)(2)). It has $52K in annual revenue. The organization has 33 disclosed officers and directors.
Are there any red flags for Wonderfest?
No red flags have been detected for Wonderfest. GiveRadar automatically screens charities for concerning patterns including high executive compensation, low program spending, missing financial filings, and declining revenue. Based on available official data, no issues have been identified.
Is it safe to donate to Wonderfest?
Wonderfest has a GiveRadar trust score of 65/100 and no red flags have been detected, which suggests it is a well-managed organization. It is regulated by the IRS. 100% of expenses go to programs. The peer average is 20%. Visit the Wonderfest profile on GiveRadar for full details before deciding. GiveRadar provides data for research purposes and does not endorse any organization. Always do your own due diligence.
Is my donation to Wonderfest tax-deductible?
Yes, donations to Wonderfest are generally tax-deductible in the United States. Wonderfest is a 501(c)(3) tax-exempt organization. Its EIN is 452564798, which you can use for tax filing purposes. Donors can typically deduct contributions on their federal income tax return if they itemize deductions. Consult a tax professional for guidance specific to your situation.