US WARN intelligence
Contra Costa County, California WARN notices
Contra Costa County, California has 308 non-cancelled imported WARN notices reporting 18,751 workers affected. 19 notices have future effective dates. These totals cover imported records only.
What the official notice history shows
During the last 365 days, this imported archive contains 37 eligible official filings for Contra Costa County, California, reporting 803 affected workers. 0 worker counts are unavailable. The newest official notice date is Sep 28, 2026.
308 non-cancelled direct government records and 0 attributed secondary records appear in the full archive. Recent official event types: layoff, closure. These figures describe notices, not unique people or completed layoffs. Grouped company names do not establish ownership.
Compare original weekly and monthly official-data reports → · How dates, names and counts are interpreted
Notice history by year
Filings and attributed reports
| Company / location | Workers | Effective date | Notice date | Type / source |
|---|---|---|---|---|
| Kaiser Foundation Hospitals (1460)Contra Costa, CA | 1 | May 12, 2025 | May 12, 2025 | layoffSource ↗ |
| Kaiser Foundation HospitalsContra Costa, CA | 1 | May 12, 2025 | May 12, 2025 | layoffSource ↗ |
| Kaiser Foundation Hospitals (1450)Contra Costa, CA | 1 | May 12, 2025 | May 12, 2025 | layoffSource ↗ |
| Chevron (100)Contra Costa, CA | 18 | Jul 1, 2025 | May 2, 2025 | layoffSource ↗ |
| Chevron (850)Contra Costa, CA | 13 | Jul 1, 2025 | May 2, 2025 | layoffSource ↗ |
| 1401 Unitek Learning Education GroupContra Costa, CA | 4 | Jul 3, 2025 | Apr 30, 2025 | layoffSource ↗ |
| Elijah House FoundationContra Costa, CA | 31 | Jun 30, 2025 | Apr 29, 2025 | layoffSource ↗ |
| ChevronSuite 200 San Ramon, CA | 600 | Jun 1, 2025 | Mar 28, 2025 | layoffSource ↗ |
| Southeast ServiceContra Costa, CA | 13 | May 31, 2025 | Mar 20, 2025 | layoffSource ↗ |
| Corteva AgriscienceContra Costa, CA | 1 | Jul 4, 2025 | Mar 14, 2025 | layoffSource ↗ |
| Central Garden & PetContra Costa, CA | 5 | May 31, 2025 | Mar 3, 2025 | layoffSource ↗ |
| Corteva AgriscienceContra Costa, CA | 26 | May 30, 2025 | Feb 25, 2025 | layoffSource ↗ |
| Kaiser Foundation HospitalsContra Costa, CA | 2 | Apr 25, 2025 | Feb 24, 2025 | layoffSource ↗ |
| Kaiser Foundation HospitalsContra Costa, CA | 1 | Apr 25, 2025 | Feb 24, 2025 | layoffSource ↗ |
| Bio-Rad LaboratoriesContra Costa, CA | 113 | Apr 11, 2025 | Feb 10, 2025 | layoffSource ↗ |
| Bio-Rad LaboratoriesContra Costa, CA | 1 | Apr 11, 2025 | Feb 10, 2025 | layoffSource ↗ |
| SafewayContra Costa, CA | 69 | Apr 4, 2025 | Feb 4, 2025 | closureSource ↗ |
| Corteva AgriscienceContra Costa, CA | 20 | Mar 28, 2025 | Jan 29, 2025 | layoffSource ↗ |
| AT&TContra Costa, CA | 8 | Mar 24, 2025 | Jan 23, 2025 | layoffSource ↗ |
| Corteva AgriscienceContra Costa, CA | 3 | Mar 28, 2025 | Dec 10, 2024 | layoffSource ↗ |
| TVIContra Costa, CA | 52 | Dec 14, 2024 | Dec 6, 2024 | closureSource ↗ |
| AT&TContra Costa, CA | 15 | Jan 31, 2025 | Dec 2, 2024 | layoffSource ↗ |
| AT&TContra Costa, CA | 34 | Jan 21, 2025 | Nov 22, 2024 | layoffSource ↗ |
| AT&TContra Costa, CA | 22 | Jan 21, 2025 | Nov 22, 2024 | layoffSource ↗ |
| Advance Stores Company, Incorporated and its subsidiary, Golden State SupplyContra Costa, CA | 9 | Mar 5, 2025 | Nov 14, 2024 | closureSource ↗ |