Data update history
May 24, 2024
Posted financials
Added Form 990 for fiscal year 2023
May 20, 2024
Updated personnel
Identified 3 new personnel
October 22, 2023
Updated personnel
Identified 2 new personnel
June 16, 2023
Posted financials
Added Form 990 for fiscal year 2022
June 14, 2023
Updated personnel
Identified 3 new personnel
Nonprofit Types
UnionsResearch centers
Issues
Science and technology
Characteristics
MembershipsPolitical advocacyConducts researchState / local level
General information
- Address
- 601 Pennsylvania Ave NW 900
- Washington, DC 20004
- Metro area
- Washington-Arlington-Alexandria, DC-VA-MD-WV
- County
- District of Columbia, DC
- Website URL
- nwseo.org/
- Phone
- (202) 951-0991
IRS details
- EIN
- 54-1018164
- Fiscal year end
- December
- Taxreturn type
- Form 990
- Year formed
- 1976
- Eligible to receive tax-deductible contributions (Pub 78)
- No
Categorization
- NTEE code, primary
- U30: Physical Sciences, Earth Sciences Research, Services
- NAICS code, primary
- 813930: Labor Unions
- Parent/child status
- Independent
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