US WARN intelligence
San Mateo County, California WARN notices
San Mateo County, California has 581 non-cancelled imported WARN notices reporting 46,943 workers affected. 6 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 47 eligible official filings for San Mateo County, California, reporting 6,121 affected workers. 0 worker counts are unavailable. The newest official notice date is Sep 14, 2026.
580 non-cancelled direct government records and 1 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 |
|---|---|---|---|---|
| Graphite BioBuilding C Brisbane, CA | 33 | Apr 24, 2023 | Mar 1, 2023 | layoffSource ↗ |
| Graphite BioSan Mateo, CA | 14 | Apr 24, 2023 | Mar 1, 2023 | layoffSource ↗ |
| Auris HealthSan Mateo, CA | 223 | Apr 30, 2023 | Mar 1, 2023 | layoffSource ↗ |
| Medical Device Business ServicesSan Mateo, CA | 5 | Apr 30, 2023 | Mar 1, 2023 | layoffSource ↗ |
| EvernoteSan Mateo, CA | 65 | Feb 17, 2023 | Feb 17, 2023 | layoffSource ↗ |
| Impossible FoodsSan Mateo, CA | 132 | Apr 11, 2023 | Feb 10, 2023 | layoffSource ↗ |
| NC InteractiveSan Mateo, CA | 4 | Feb 1, 2023 | Feb 2, 2023 | layoffSource ↗ |
| Upstart NetworkSan Mateo, CA | 102 | Feb 20, 2023 | Jan 31, 2023 | layoffSource ↗ |
| Mindstrong, Inc. and Mindstrong Health ServicesSuite 228 Menlo Park, CA | 128 | Mar 24, 2023 | Jan 24, 2023 | closureSource ↗ |
| GoogleSan Mateo, CA | 40 | Mar 31, 2023 | Jan 20, 2023 | layoffSource ↗ |
| GoogleSan Mateo, CA | 20 | Mar 31, 2023 | Jan 20, 2023 | layoffSource ↗ |
| GoogleSan Mateo, CA | 31 | Mar 31, 2023 | Jan 20, 2023 | layoffSource ↗ |
| GoogleSan Mateo, CA | 24 | Mar 31, 2023 | Jan 20, 2023 | layoffSource ↗ |
| Verily Life SciencesSan Mateo, CA | 119 | Mar 12, 2023 | Jan 11, 2023 | layoffSource ↗ |
| Fate TherapeuticsSan Mateo, CA | 21 | Mar 6, 2023 | Jan 5, 2023 | layoffSource ↗ |
| Flagship Facility Services Inc. at Meta PlatformsSan Mateo, CA | 4 | Mar 6, 2023 | Jan 3, 2023 | layoffSource ↗ |
| Flagship Facility Services Inc. at Meta PlatformsSan Mateo, CA | 8 | Mar 6, 2023 | Jan 3, 2023 | layoffSource ↗ |
| Flagship Facility Services Inc. at Meta PlatformsSan Mateo, CA | 34 | Mar 6, 2023 | Jan 3, 2023 | layoffSource ↗ |
| Flagship Facility Services Inc. at Meta PlatformsSan Mateo, CA | 16 | Mar 6, 2023 | Jan 3, 2023 | layoffSource ↗ |
| Flagship Facility Services Inc. at Meta PlatformsSan Mateo, CA | 1 | Mar 6, 2023 | Jan 3, 2023 | layoffSource ↗ |
| Flagship Facility Services Inc. at Meta PlatformsSan Mateo, CA | 9 | Mar 6, 2023 | Jan 3, 2023 | layoffSource ↗ |
| Flagship Facility Services Inc. at Meta PlatformsSan Mateo, CA | 10 | Mar 6, 2023 | Jan 3, 2023 | layoffSource ↗ |
| Flagship Facility Services Inc. at Meta PlatformsSan Mateo, CA | 1 | Mar 6, 2023 | Jan 3, 2023 | layoffSource ↗ |
| Flagship Facility Services Inc. at Meta PlatformsSan Mateo, CA | 17 | Mar 6, 2023 | Jan 3, 2023 | layoffSource ↗ |
| Flagship Facility Services Inc. at Meta PlatformsSan Mateo, CA | 1 | Mar 6, 2023 | Jan 3, 2023 | layoffSource ↗ |