Data update history
September 27, 2023
Updated personnel
Identified 1 new personnel
September 26, 2023
Posted financials
Added Form 990 for fiscal year 2022
July 29, 2023
Posted financials
Added Form 990 for fiscal year 2021
June 27, 2023
Posted financials
Added Form 990 for fiscal year 2020
May 6, 2023
Updated personnel
Identified 3 new personnel
Nonprofit Types
Grantmaking organizationsDisease research fundraisersDisease-focused nonprofitsHeadquarter / parent organizationsCharities
Issues
HealthDiseases and disorders
Characteristics
Conducts researchTax deductible donationsNo full-time employeesAccepts online donations
General information
- Address
- 655 Beach St
- San Francisco, CA 94109
- Metro area
- San Francisco-Oakland-Berkeley, CA
- County
- San Francisco County, CA
- Website URL
- aosonline.org/Â
- Phone
- (415) 561-8578
IRS details
- EIN
- 04-6042338
- Fiscal year end
- December
- Taxreturn type
- Form 990
- Year formed
- 1912
- Eligible to receive tax-deductible contributions (Pub 78)
- Yes
Categorization
- NTEE code, primary
- G40: Diseases of Specific Organs
- NAICS code, primary
- 813212: Health and Disease Research Fundraising Organizations
- Parent/child status
- Central organization
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
- CT0257689
- FTB Entity ID
- None yet
- AB 488 data last updated ("as-of") date
- 2024-10-16
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