Data update history
March 2, 2025
Updated personnel
Identified 1 new personnel
February 28, 2025
Used new vendors
Identified 1 new vendor, including
July 20, 2024
Updated personnel
Identified 6 new personnel
July 14, 2024
Posted financials
Added Form 990 for fiscal year 2023
July 9, 2024
Used new vendors
Identified 3 new vendors, including , , and
Nonprofit Types
Grantmaking organizationsUnionsBusiness and community development organizationsHeadquarter / parent organizations
Issues
HealthHuman servicesDiseases and disordersJobs and employmentBusiness and industry
Characteristics
Political advocacyOperates internationallyRelated 527
General information
- Address
- 9602 Martin Luther King Hwy
- Lanham, MD 20706
- Metro area
- Washington-Arlington-Alexandria, DC-VA-MD-WV
- County
- Prince George's County, MD
- Website URL
- insulators.org/Â
- Phone
- (301) 731-9101
- Facebook page
- InsulatorsUnionÂ
- Twitter profile
- @insulatorsunionÂ
IRS details
- EIN
- 53-0088300
- Fiscal year end
- December
- Taxreturn type
- Form 990
- Year formed
- 1903
- Eligible to receive tax-deductible contributions (Pub 78)
- No
Categorization
- NTEE code, primary
- J40: Labor unions, organizations
- NAICS code, primary
- 813920: Professional Associations
- Parent/child status
- Parent of group exemption
- Central organization
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