US WARN intelligence
California layoffs & WARN notices
California has 17,586 non-cancelled imported WARN notices reporting 1,452,638 workers affected. 217 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 1,497 eligible official filings for California, reporting 74,240 affected workers. 0 worker counts are unavailable. The newest official notice date is Oct 6, 2026.
17521 non-cancelled direct government records and 63 attributed secondary records appear in the full archive. Recent official event types: layoff, closure, temporary, unspecified. 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 |
|---|---|---|---|---|
| Alstom Mass TransitContra Costa, CA | 41 | Sep 28, 2023 | Jul 27, 2023 | closureSource ↗ |
| Langmuir SystemsSan Diego, CA | 16 | Sep 30, 2023 | Jul 26, 2023 | closureSource ↗ |
| Pizza Antica Mill ValleyMarin, CA | 43 | Sep 22, 2023 | Jul 26, 2023 | closureSource ↗ |
| Petco Animal Supplies StoresSan Diego, CA | 47 | Jul 28, 2023 | Jul 24, 2023 | layoffSource ↗ |
| Intense LightingOrange, CA | 90 | Sep 29, 2023 | Jul 24, 2023 | closureSource ↗ |
| Gemological Institute of America, Inc. (GIA)San Diego, CA | 151 | Sep 22, 2023 | Jul 24, 2023 | layoffSource ↗ |
| Petco Animal Supplies StoresSan Diego, CA | 9 | Oct 27, 2023 | Jul 24, 2023 | layoffSource ↗ |
| Johns ManvilleGlenn, CA | 54 | Sep 25, 2023 | Jul 21, 2023 | temporarySource ↗ |
| AccentureAlameda, CA | 100 | Nov 10, 2023 | Jul 21, 2023 | closureSource ↗ |
| AccentureAlameda, CA | 140 | Nov 10, 2023 | Jul 21, 2023 | closureSource ↗ |
| Headway TechnologiesSanta Clara, CA | 24 | Sep 22, 2023 | Jul 20, 2023 | layoffSource ↗ |
| CodexisSan Mateo, CA | 31 | Sep 30, 2023 | Jul 20, 2023 | layoffSource ↗ |
| Headway TechnologiesSanta Clara, CA | 2 | Sep 22, 2023 | Jul 20, 2023 | layoffSource ↗ |
| Headway TechnologiesSanta Clara, CA | 2 | Sep 22, 2023 | Jul 20, 2023 | layoffSource ↗ |
| Headway TechnologiesSanta Clara, CA | 3 | Sep 22, 2023 | Jul 20, 2023 | layoffSource ↗ |
| CodexisSan Mateo, CA | 28 | Sep 30, 2023 | Jul 20, 2023 | layoffSource ↗ |
| Headway TechnologiesSanta Clara, CA | 59 | Sep 22, 2023 | Jul 20, 2023 | layoffSource ↗ |
| Vionic Consumer Care OperationsSuite 430 San Rafael, CA | 6 | Sep 17, 2023 | Jul 19, 2023 | closureSource ↗ |
| Charles River LaboratoriesSuite 200 South San Francisco, CA | 55 | Sep 19, 2023 | Jul 19, 2023 | closureSource ↗ |
| BlowfishLos Angeles, CA | 20 | Sep 15, 2023 | Jul 18, 2023 | closureSource ↗ |
| FibroGenSan Francisco, CA | 104 | Sep 15, 2023 | Jul 17, 2023 | layoffSource ↗ |
| Corteva AgriscienceContra Costa, CA | 31 | Oct 27, 2023 | Jul 17, 2023 | layoffSource ↗ |
| Cisco SystemsSanta Clara, CA | 123 | Oct 16, 2023 | Jul 17, 2023 | layoffSource ↗ |
| Cisco SystemsSanta Clara, CA | 227 | Oct 16, 2023 | Jul 17, 2023 | layoffSource ↗ |
| Fish Market RestaurantsSanta Clara, CA | 49 | Sep 14, 2023 | Jul 14, 2023 | closureSource ↗ |