Skip to main content
IRS-authorized e-file provider · not the IRS

Nonprofit · EIN 87-2703808

HIDDEN WONDERS

Tax-exempt · PALO ALTO, CA 94303

Financials

$24K$39K2023$72K$50K2024$9K$48K2025
Revenue Expenses · by fiscal year end
Financials of HIDDEN WONDERS by year, from its e-filed returns
Year endedFormRevenueExpensesNet incomeTotal assetsLiabilitiesNet assets
December 31, 2025990-EZ$9,169$47,500-$38,331$34,004$0$34,004
December 31, 2024990-EZ$71,646$50,083$21,563$72,335$0$72,335
December 31, 2023990-EZ$23,737$38,526-$14,789$50,772$0$50,772
Financial details: 990-EZ for the year ended December 31, 2025

Revenue

Contributions, gifts and grants
$8,218
Program service revenue
$0
Investment income
$0
Other revenue
$951

Expenses

Grants and similar amounts paid
$0
Compensation of officers, directors and key employees
$36,000
Salaries, compensation and benefits (total)
$0
Professional fees and payments to contractors
$38,090
Other expenses
$9,410
Program services (functional)
$9,055

Balance sheet and other

Total assets, start of year
$72,335
Total assets, end of year
$34,004
Total liabilities, end of year
$0
Net assets, end of year
$34,004
Cash, savings and investments
$34,004
Gross receipts
$9,169

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.

NameTitleHours / weekCompensation
Kristina Lindsay MadrizChief Operating Officer, Director of Development35$36,000
Isai MadrizExecutive Director, Lead Entomologist35$0
Susan LindsayBoard Chair1$0
Victor RodriguezMedia Director & Board Member1$0
990-EZ for the year ended December 31, 2024: 4 people
NameTitleHours / weekCompensation
Kristina Lindsay MadrizChief Operating Officer, Director of Development35$21,000
Isai MadrizExecutive Director, Lead Entomologist35$0
Susan LindsayBoard Chair1$0
Victor RodriguezMedia Director & Board Member1$0
990-EZ for the year ended December 31, 2023: 7 people
NameTitleHours / weekCompensation
Steve ColwellTreasurer1$0
Ann ShulmanBoard Chair1$0
Shawn ReifsteckSecretary1$0
Isai MadrizExecutive Director, Lead Entomologist35$0
Kristina Lindsay MadrizChief Operating Officer, Director of Development35$0
Susan LindsayBoard Chair1$0
Victor RodriguezMedia Director & Board Member1$0

Address and contacts

Address (IRS master file)
1591 DANA AVE, PALO ALTO, CA 94303-2814
Mailing address (990-N for 2021)
1038 Merced St, Berkeley CA 94707
Principal officer (990-N for 2021)
Stephen Colwell, 1038 Merced St, Berkeley CA 94707
Signed the 990-EZ
Kristina Lindsay Madriz, Chief Operating Officer
Phone
(630) 360-5840

California records

California keeps its own records of charities and corporations. Search them by EIN 87-2703808 or by the name HIDDEN WONDERS.

Attorney General, Registry of Charities and Fundraisers
Registration status and filed reports (CT-TR-1, RRF-1)

Mission

Our Mission: To discover, describe and protect key insect species and other hidden wonders of nature and inspire the next generation to care for these crucial components of a healthy planet for the betterment of all. Our Purpose: Hidden Wonders aims to contribute to our understanding of the crucial role that insects play within a variety of ecosystems by discovering and explaining the behavior and interactions of insect species before they become extinct. By sharing the discoveries of new insect species and explaining their role in maintaining a healthy planet, we aim to inspire the protection of those species and their ecosystems into the future. Through collaborations with local communities, schools, and media outlets, Hidden Wonders share stories and interactive experiences in nature to build the next stewards of our planet.

990-EZ for the year ended December 31, 2025

Program accomplishments

  • Programs (80% of budget): (30%) Insect lab & photo studio, (30%) Fieldwork & Collecting, (20%) Outreach. Overhead (20% of budget) divided evenly between Fundraising & Office Administration. We have documented through photography and illustration dozens of insect species for the contribution to scientific literature, books and magazines that reach general populations, and educational materials that reach children and youth. In the Insect Lab & Photo Studio there are discoveries made under the microscope. Over 100 species new to science have been found and are being described by the lead scientist/entomologist of Hidden Wonders. Insects have been collected and studied from various parts of the world. These findings have resulted in broadening the understanding of insect biodiversity and after studying and observing the behaviors, revealed the importance that insects play in their environments. Video calls with over a dozen classrooms of students from around the world have taken place from the lab and also from collecting sites in nature via satellite phone. Additionally, classroom visits and field trips with students have taken place in-person in multiple locations. Hidden Wonders helped to start a program called "Semillero" which brings children/families/community members into nature for intentional learning and connection with nature. This program continues in Patagonia, Chile (Instagram: @SemilleroForestSchool). Hidden Wonders is represented through social media channels, Instagram and LinkedIn. Hidden Wonders also has a website for everyone to visit and all they need is internet (no accounts, unlike with social media). Fundraising is successful because of the personalized approach of meeting in-person with potential donors and giving presentations of the photography and work of Hidden Wonders. Follow up with donors includes through newsletters and emails, as well as postcards and in-person visits. Some donors also receive a framed photo of an insect taken by National Geographic Photographer and lead scientist of Hidden Wonders. These donor retention methods do not cost very much but have a huge impact on the maintenance of the relationships with donors. Small costs associated with admin/office include paying an accountant, website costs, social media manager, logo designer, and when necessary, legal aid. Other costs include covering basic office supplies
    Expenses $9,055

What it must file and when

IRS records say it files Form 990-N (e-Postcard). Gross receipts normally $50,000 or less. Its accounting year ends in December, so each return is due on the 15th day of the 5th month after that.

Tax yearYear endedDueIRS public records
2025December 31, 2025May 15, 2026990-EZ on file
2024December 31, 2024May 15, 2025990-EZ on file
2023December 31, 2023May 15, 2024990-EZ on file

File the 2026 990-N for HIDDEN WONDERS

Due May 17, 2027 · e-filed with the IRS by 990.tax, an IRS-authorized e-file provider

IRS record

EIN
87-2703808
Tax-exempt status
501(c)(3): Charitable, religious, educational or scientific organization
Foundation status
Publicly supported organization (509(a)(2))
Donations deductible (Pub 78)
Public charity, 50% deduction limit
Exempt since
2022
Accounting year ends
December
Files
Form 990-N (e-Postcard)
Category (NTEE)
Animal-related (D30)
Assets (IRS master file)
$34,004
Income (IRS master file)
$9,169

Filing history

FormYear endedRevenueExpensesAssetsReturn
990-EZDecember 2025$9,169$47,500$34,004IRS
990-EZDecember 2024$71,646$50,083$72,335IRS
990-EZDecember 2023$23,737$38,526$50,772XML
990-EZDecember 2022–––IRS
990-N for 2021
Officer: Stephen Colwell
December 31, 2021≤ $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 87-2703808).

Questions about HIDDEN WONDERS

What is the EIN of HIDDEN WONDERS?
The employer identification number (EIN) of HIDDEN WONDERS is 87-2703808.
Is HIDDEN WONDERS tax-exempt?
Yes. The IRS lists it as tax-exempt under section 501(c)(3) since 2022.
Are donations to HIDDEN WONDERS tax-deductible?
Yes. It is listed in IRS Publication 78 (Public charity, 50% deduction limit).
Which annual return does HIDDEN WONDERS file?
Form 990-N (e-Postcard). Gross receipts normally $50,000 or less.
When is the next return of HIDDEN WONDERS 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 HIDDEN WONDERS 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 HIDDEN WONDERS?
The 990-N for 2021 names Stephen Colwell.
Who are the officers and directors of HIDDEN WONDERS?
The 990-EZ for the year ended December 31, 2025 lists 4 people; 1 received compensation from the organization, the highest $36,000 (Kristina Lindsay Madriz, Chief Operating Officer, Director of Development).
How much revenue does HIDDEN WONDERS have?
On its 990-EZ for the year ended December 31, 2025 it reported revenue of $9,169, expenses of $47,500 and total assets of $34,004 at year end.

Other nonprofits in PALO ALTO

All nonprofits in PALO ALTO · California · Animal-related