Data update history
November 26, 2023
Posted financials
Added Form 990 for fiscal year 2022
November 26, 2023
Updated personnel
Identified 12 new personnel
November 25, 2023
Posted financials
Added Form 990 for fiscal year 2021
July 7, 2023
Updated personnel
Identified 32 new personnel
June 20, 2023
Updated personnel
Identified 3 new personnel
Nonprofit Types
UnionsChapter / child organizations
Issues
Human servicesJobs and employment
Characteristics
Political advocacyState / local level
General information
- Address
- 293 Boston Post Rd W 4th Floo
- Marlborough, MA 01752
- Metro area
- Boston-Cambridge-Newton, MA-NH
- County
- Middlesex County, MA
- Website URL
- seiu509.org/Â
- Phone
- (774) 843-7509
IRS details
- EIN
- 04-6190454
- Fiscal year end
- December
- Taxreturn type
- Form 990
- Year formed
- 1961
- 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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