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Nonprofit · EIN 86-2147594

LOST WOMEN OF SCIENCE INITIATIVE INC

Tax-exempt · SAN FRANCISCO, CA 94114

Financials

$652K$392K2023$330K$460K2024$288K$513K2025
Revenue Expenses · by fiscal year end
Financials of LOST WOMEN OF SCIENCE INITIATIVE INC by year, from its e-filed returns
Year endedFormRevenueExpensesNet incomeTotal assetsLiabilitiesNet assets
December 31, 2025990$288,474$512,842-$224,368$161,648$23,109$138,539
December 31, 2024990$330,499$459,962-$129,463$386,016$23,109$362,907
December 31, 2023990$652,206$391,513$260,693$522,224$28,113$494,111
Financial details: 990 for the year ended December 31, 2025

Revenue

Contributions, gifts and grants
$288,435
Program service revenue
$0
Investment income
$39
Other revenue
$0

Expenses

Grants and similar amounts paid
$0
Compensation of officers, directors and key employees
$73,077
Other salaries and wages
$45,825
Salaries, compensation and benefits (total)
$128,517
Professional fundraising fees
$0
Legal fees
$270
Accounting fees
$24,180
Travel
$3,731
Program services (functional)
$458,260
Management and general (functional)
$54,582

Balance sheet and other

Total assets, start of year
$386,016
Total assets, end of year
$161,648
Total liabilities, end of year
$23,109
Net assets, end of year
$138,539
Net assets without donor restrictions
$138,539
Gross receipts
$288,474
Employees
2
Year formed
2021
State of legal domicile
CA

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
Katie HafnerPresident & CEO
Trustee or director, Officer
40$73,077
Amy ScharfTreasurer
Trustee or director, Officer
5$0
Linda Grais MD JDVice President
Trustee or director, Officer
2$0
Ann SacherManaging Dir
Trustee or director
2$0
990 for the year ended December 31, 2024: 3 people
NameTitleHours / weekCompensation
Katie HafnerPresident & CEO
Trustee or director, Officer
40$50,000
Amy ScharfSecretary
Trustee or director, Officer
5$0
Linda Grais MD JDVice President
Trustee or director, Officer
2$0
990 for the year ended December 31, 2023: 3 people
NameTitleHours / weekCompensation
Katie HafnerPresident & CEO
Trustee or director, Officer
40$83,846
Amy ScharfVP/Treasurer
Trustee or director, Officer
2$0
Linda Grais MD JDSecretary
Trustee or director, Officer
2$0

Address and contacts

Address (IRS master file)
656 DOUGLASS ST, SAN FRANCISCO, CA 94114-3151
Principal officer (990 for 2025)
Katie Hafner, 656 Douglass Street, San Francisco, CA 94114
Signed the 990
Amy Scharf, Treasurer
Phone
(206) 359-3859
Return prepared by
REGALIA BERGER & BERGER CPAS

California records

California keeps its own records of charities and corporations. Search them by EIN 86-2147594 or by the name LOST WOMEN OF SCIENCE INITIATIVE INC.

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

Mission

The Lost Women of Science Initiative has two related missions: To tell the story of female scientists who made groundbreaking achievements in their fields and to inspire girls and young women to embark on careers in STEM.

990 for the year ended December 31, 2025

Program accomplishments

  • The Initiatives flagship is its Lost Women of Science podcast, producing four multi-episode seasons per year. As a full, mission-driven organization, the Lost Women of Science Initiative plans to digitize and archive our research efforts and make all primary source material available to students and historians of science.
    Expenses $458,260

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 on file

IRS record

EIN
86-2147594
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
2021
Accounting year ends
December
Files
Form 990 or 990-EZ
Category (NTEE)
Education (B99)
Assets (IRS master file)
$161,648
Income (IRS master file)
$288,474

Filing history

FormYear endedRevenueExpensesAssetsReturn
990December 2025$288,474$512,842$161,648XML
990December 2024$330,499$459,962$386,016XML
990December 2023$652,206$391,513$522,224XML
990December 2022$282,770$497,493$261,531IRS
990December 2021–––IRS

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 86-2147594).

Questions about LOST WOMEN OF SCIENCE INITIATIVE INC

What is the EIN of LOST WOMEN OF SCIENCE INITIATIVE INC?
The employer identification number (EIN) of LOST WOMEN OF SCIENCE INITIATIVE INC is 86-2147594.
Is LOST WOMEN OF SCIENCE INITIATIVE INC tax-exempt?
Yes. The IRS lists it as tax-exempt under section 501(c)(3) since 2021.
Are donations to LOST WOMEN OF SCIENCE INITIATIVE INC tax-deductible?
Yes. It is listed in IRS Publication 78 (Public charity, 50% deduction limit).
Which annual return does LOST WOMEN OF SCIENCE INITIATIVE INC 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 LOST WOMEN OF SCIENCE INITIATIVE INC 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 LOST WOMEN OF SCIENCE INITIATIVE INC 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 LOST WOMEN OF SCIENCE INITIATIVE INC?
The 990 for the year ended December 31, 2025 names Katie Hafner.
Who are the officers and directors of LOST WOMEN OF SCIENCE INITIATIVE INC?
The 990 for the year ended December 31, 2025 lists 4 people; 1 received compensation from the organization, the highest $73,077 (Katie Hafner, President & CEO).
How much revenue does LOST WOMEN OF SCIENCE INITIATIVE INC have?
On its 990 for the year ended December 31, 2025 it reported revenue of $288,474, expenses of $512,842 and total assets of $161,648 at year end.

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