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Nonprofit · EIN 99-0758904

EXPERIMENT FOUNDATION

Tax-exempt · BERKELEY, CA 94710

Financials

$480K$9K2024$1M$219K2025
Revenue Expenses · by fiscal year end
Financials of EXPERIMENT FOUNDATION by year, from its e-filed returns
Year endedFormRevenueExpensesNet incomeTotal assetsLiabilitiesNet assets
December 31, 2025990$1,047,139$219,076$828,063$1,314,898$16,400$1,298,498
December 31, 2024990$479,846$9,411$470,435$470,435$0$470,435
Financial details: 990 for the year ended December 31, 2025

Revenue

Contributions, gifts and grants
$1,047,000
Program service revenue
$0
Investment income
$139
Other revenue
$0

Expenses

Grants and similar amounts paid
$55,370
Compensation of officers, directors and key employees
$75,000
Other salaries and wages
$10,199
Salaries, compensation and benefits (total)
$96,488
Professional fundraising fees
$0
Legal fees
$1,392
Accounting fees
$3,200
Travel
$3,925
Program services (functional)
$157,546
Management and general (functional)
$46,530
Fundraising (functional)
$15,000

Balance sheet and other

Total assets, start of year
$470,435
Total assets, end of year
$1,314,898
Total liabilities, end of year
$16,400
Net assets, end of year
$1,298,498
Net assets without donor restrictions
$591,275
Net assets with donor restrictions
$707,223
Gross receipts
$1,047,139
Employees
4
Volunteers
4
Year formed
2023
State of legal domicile
DE

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 for the year ended December 31, 2025, highest compensation first.

NameTitleHours / weekCompensation
DAVID LANGPRESIDENT
Trustee or director, Officer
40$75,000
RACHEL KROPATREASURER
Trustee or director, Officer
3$0
PAUL KEOLU FOXSECRETARY
Trustee or director, Officer
2$0
BRIDGET BAUMGARTNERBOARD MEMBER
Trustee or director
2$0
SHANNON DOSEMAGENBOARD MEMBER
Trustee or director
2$0
990 for the year ended December 31, 2024: 3 people
NameTitleHours / weekCompensation
DAVID LANGPRESIDENT
Trustee or director, Officer
40$0
RACHEL KROPATREASURER
Trustee or director, Officer
3$0
PAUL KEOLU FOXSECRETARY
Trustee or director, Officer
2$0

Address and contacts

Address (IRS master file)
2777 9TH ST UNIT 106, BERKELEY, CA 94710-2649
In care of
% DAVID LANG
Mailing address (990-N for 2023)
2777 9th Street Number 106, Berkeley CA 94710
Principal officer (990 for 2025)
DAVID LANG, 2777 9TH STREET SUITE 106, BERKELEY, CA 94710
Principal officer (990-N for 2023)
David Lang, 2777 9th Street Number 106, Berkeley CA 94710
Signed the 990
DAVID LANG, PRESIDENT
Phone
(415) 763-8274
Return prepared by
BLACKMAN & SLOOP ADVISORS INC

California records

California keeps its own records of charities and corporations. Search them by EIN 99-0758904 or by the name EXPERIMENT FOUNDATION.

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

Mission

THE EXPERIMENT FOUNDATION IS A 501(C)(3) NONPROFIT ORGANIZATION DEDICATED TO REIMAGINING HOW SCIENCE IS FUNDED AND WHO GETS TO PARTICIPATE. THROUGH PARTNERSHIPS WITH PHILANTHROPIES, FEDERAL AGENCIES, AND COMPANIES, THE FOUNDATION FACILITATES INNOVATIVE GRANTMAKING MODELS-INCLUDING CHALLENGE GRANTS AND PATRONAGE PROGRAMS SUPPORTING INDEPENDENT RESEARCHERS AND NOVEL SCIENTIFIC IDEAS, THE EXPERIMENT FOUNDATION HELPS UNLOCK SCIENTIFIC CREATIVITY AND BUILDS NEW PATHWAYS FOR PUBLIC ENGAGEMENT IN SCIENCE.

990 for the year ended December 31, 2025

Program accomplishments

  • IN 2025, THE EXPERIMENT FOUNDATION FOCUSED ON THREE PRIMARY INITIATIVES SUPPORTING EARLY-STAGE SCIENTIFIC AND ENVIRONMENTAL INNOVATION.FIRST, THE FOUNDATION CONTINUED ADMINISTERING THE GREENHOUSE GAS REMOVAL IDEATION PRIZE, A MULTI-PHASE FUNDING PROGRAM DESIGNED TO SURFACE AND SUPPORT EARLY-STAGE IDEAS FOR GREENHOUSE GAS REMOVAL. SECOND, THE FOUNDATION LAUNCHED AND ADMINISTERED THE CALIFORNIA BIODIVERSITY GRANT PROGRAM, WHICH PROVIDED FUNDING TO PROJECTS WORKING TO PROTECT AND RESTORE BIODIVERSITY ACROSS CALIFORNIA. THE PROGRAM SUPPORTED A COHORT OF GRANTEES ADDRESSING CONSERVATION CHALLENGES THROUGH RESEARCH, MONITORING, AND COMMUNITY-BASED ENVIRONMENTAL STEWARDSHIP.FINALLY, THE FOUNDATION LAUNCHED THE BEYOND THE JOURNAL AWARDS, A NEW RECOGNITION PROGRAM CELEBRATING LEADERS IN OPEN SCIENCE WHO ARE ADVANCING RESEARCH COMMUNICATION, COLLABORATION, AND SCIENTIFIC CULTURE BEYOND TRADITIONAL ACADEMIC PUBLISHING.TOGETHER, THESE INITIATIVES ADVANCED THE EXPERIMENT FOUNDATION'S MISSION TO SUPPORT EMERGING IDEAS, RECOGNIZE SCIENTIFIC LEADERSHIP, AND DIRECT FUNDING TO INDIVIDUALS AND TEAMS
    Expenses $157,546 · grants $55,370

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

IRS record

EIN
99-0758904
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
2024
Accounting year ends
December
Files
Form 990 or 990-EZ
Assets (IRS master file)
$1,314,898
Income (IRS master file)
$1,047,139

Filing history

FormYear endedRevenueExpensesAssetsReturn
990December 2025$1,047,139$219,076$1,314,898XML
990December 2024$479,846$9,411$470,435IRS
990-N for 2023
Officer: David Lang
December 31, 2023≤ $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 99-0758904).

Questions about EXPERIMENT FOUNDATION

What is the EIN of EXPERIMENT FOUNDATION?
The employer identification number (EIN) of EXPERIMENT FOUNDATION is 99-0758904.
Is EXPERIMENT FOUNDATION tax-exempt?
Yes. The IRS lists it as tax-exempt under section 501(c)(3) since 2024.
Are donations to EXPERIMENT FOUNDATION tax-deductible?
Yes. It is listed in IRS Publication 78 (Public charity, 50% deduction limit).
Which annual return does EXPERIMENT FOUNDATION 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 EXPERIMENT FOUNDATION 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 EXPERIMENT FOUNDATION last file with the IRS?
The latest return in the IRS public files is the 990 for the year ended December 2025.
Who is the principal officer of EXPERIMENT FOUNDATION?
The 990 for the year ended December 31, 2025 names DAVID LANG.
Who are the officers and directors of EXPERIMENT FOUNDATION?
The 990 for the year ended December 31, 2025 lists 5 people; 1 received compensation from the organization, the highest $75,000 (DAVID LANG, PRESIDENT).
How much revenue does EXPERIMENT FOUNDATION have?
On its 990 for the year ended December 31, 2025 it reported revenue of $1,047,139, expenses of $219,076 and total assets of $1,314,898 at year end.

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