Data update history
July 1, 2024
Posted financials
Added Form 990N for fiscal year 2023
April 1, 2023
Posted financials
Added Form 990N for fiscal year 2022
March 1, 2022
Posted financials
Added Form 990N for fiscal year 2021
April 23, 2021
Posted financials
Added Form 990N for fiscal year 2020
March 1, 2020
Updated personnel
Identified 1 new personnel
Nonprofit Types
Professional associationsBusiness and community development organizationsResearch centersChapter / child organizationsCharities
Issues
Science and technologyBusiness and industry
Characteristics
Conducts researchState / local levelTax deductible donationse-Postcard filerAccepts online donations
General information
- Address
- 928 Clinton St
- Philadelphia, PA 19107
- Metro area
- Philadelphia-Camden-Wilmington, PA-NJ-DE-MD
- County
- Philadelphia County, PA
- Website URL
- philadelphia.nss.org/
IRS details
- EIN
- 45-3009535
- Fiscal year end
- December
- Taxreturn type
- Form 990-N / Postcard
- Year formed
- 1974
- Eligible to receive tax-deductible contributions (Pub 78)
- Yes
Categorization
- NTEE code, primary
- U30: Physical Sciences, Earth Sciences Research, Services
- NAICS code, primary
- 813920: Professional Associations
- Parent/child status
- Child within group exemption
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