Data update history
July 16, 2026
Posted financials
Added Form 990 for fiscal year 2025
June 21, 2026
Updated personnel
Identified 2 new personnel
August 6, 2025
Posted financials
Added Form 990 for fiscal year 2024
August 3, 2025
Updated personnel
Identified 8 new personnel
August 18, 2024
Posted financials
Added Form 990 for fiscal year 2023
Nonprofit Types
UnionsChapter / child organizations
Issues
Human servicesJobs and employment
Characteristics
Legally formed as other entityMembershipsState / local level
General information
- Address
- 1333 Pine St PO Box 349 Ste A
- Martinez, CA 94553
- Metro area
- San Francisco-Oakland-Berkeley, CA
- County
- Contra Costa County, CA
- Website URL
- usw5.org/Â
- Phone
- (925) 890-9715
IRS details
- EIN
- 94-0730692
- Fiscal year end
- December
- Taxreturn type
- Form 990
- Year formed
- 1927
- 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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