Data update history
December 28, 2023
Posted financials
Added Form 990 for fiscal year 2022
June 21, 2023
Posted financials
Added Form 990 for fiscal year 2020
June 18, 2023
Posted financials
Added Form 990 for fiscal year 2021
June 16, 2023
Updated personnel
Identified 1 new personnel
October 3, 2021
Posted financials
Added Form 990 for fiscal year 2019
Nonprofit Types
UnionsChapter / child organizations
Issues
Human servicesJobs and employment
Characteristics
MembershipsPolitical advocacyState / local level
General information
- Address
- 9700 Pennsylvania Ave
- Upper Marlboro, MD 20772
- Metro area
- Washington-Arlington-Alexandria, DC-VA-MD-WV
- County
- Prince George's County, MD
- Website URL
- seiulocal400pg.org/Â
- Phone
- (301) 403-0271
IRS details
- EIN
- 52-1037881
- Fiscal year end
- December
- Taxreturn type
- Form 990
- Year formed
- 1967
- Eligible to receive tax-deductible contributions (Pub 78)
- No
Categorization
- NTEE code, primary
- J40: Labor unions, organizations
- NAICS code, primary
- 813930: Labor Unions
- Parent/child status
- Child within group exemption
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