EIN 82-1218312

End of Endo Project

IRS 501(c) type
501(c)(3)
Num. employees
Unknown
Year formed
2017
Most recent tax filings
2024-12-01
Description
End of Endo Project is a patient advocacy and support organization for people living with endometriosis, working to remove barriers to the best available care. It provides current, easy-to-understand information, helps streamline access to qualified specialists, and offers education, empowerment, and support to renew hope. It envisions earlier diagnosis, gold-standard treatment, and a future where individuals receive thorough care—including options that avoid surgery—alongside complete, accurate information and strong support systems.
Total revenues
n/a
Total expenses
n/a
Total assets
n/a
Num. employees
n/a
Data update history
May 19, 2026
Used new vendors
Identified 2 new vendors, including , and
June 2, 2025
Posted financials
Added Form 990N for fiscal year 2024
August 1, 2024
Posted financials
Added Form 990N for fiscal year 2023
June 1, 2022
Posted financials
Added Form 990N for fiscal year 2021
June 2, 2021
Posted financials
Added Form 990N for fiscal year 2020
Nonprofit Types
Social advocacy organizationsDisease-focused nonprofitsCharities
Issues
HealthHuman servicesDiseases and disorders
Characteristics
Political advocacyTax deductible donationse-Postcard filerAccepts online donations
General information
Address
410 Jane Dr
Windsor, CA 95492
Metro area
Santa Rosa-Petaluma, CA
County
Sonoma County, CA
Website URL
endofendoproject.org/ 
IRS details
EIN
82-1218312
Fiscal year end
December
Taxreturn type
Form 990-N / Postcard
Year formed
2017
Eligible to receive tax-deductible contributions (Pub 78)
Yes
Categorization
NTEE code, primary
G80: Specifically Named Diseases
NAICS code, primary
813319: Social Advocacy Organizations
Parent/child status
Independent
California AB-488 details
AB 488 status
May Operate or Solicit for Charitable Purposes
Charity Registration status
Current
FTB status revoked
Not revoked
AG Registration Number
CT0252376
FTB Entity ID
4013151
AB 488 data last updated ("as-of") date
2026-05-06
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