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 |
|---|---|---|---|---|
| Oh My Green's WarehouseBurlingame, CA | 115 | May 10, 2020 | Mar 2, 2020 | closureSource ↗ |
| QIC Properties USSan Bruno, CA | 5 | Apr 30, 2020 | Feb 28, 2020 | layoffSource ↗ |
| XO AssetsSouth San Francisco, CA | 1 | May 1, 2020 | Feb 27, 2020 | closureSource ↗ |
| XO HoldingSouth San Francisco, CA | 10 | May 1, 2020 | Feb 27, 2020 | closureSource ↗ |
| XOJET AviationSouth San Francisco, CA | 2 | May 1, 2020 | Feb 27, 2020 | closureSource ↗ |
| GenentechSouth San Francisco, CA | 114 | Mar 18, 2020 | Feb 13, 2020 | closureSource ↗ |
| Delivery GuysSouth San Francisco, CA | 62 | Apr 17, 2020 | Feb 12, 2020 | closureSource ↗ |
| ShutterflyRedwood City, CA | 153 | Mar 31, 2020 | Jan 29, 2020 | layoffSource ↗ |
| Proteus Digital HealthRedwood City, CA | 202 | Jan 18, 2020 | Nov 25, 2019 | closureSource ↗ |
| Impakt HoldingsBurlingame, CA | 39 | Nov 15, 2019 | Sep 16, 2019 | closureSource ↗ |
| Bay City FlowerHalf Moon Bay, CA | 195 | Nov 10, 2019 | Sep 10, 2019 | closureSource ↗ |
| ShipBobSouth San Francisco, CA | 26 | Oct 30, 2019 | Sep 5, 2019 | closureSource ↗ |
| IlluminaFoster City, CA | 19 | Nov 5, 2019 | Aug 30, 2019 | layoffSource ↗ |
| AsurionSan Mateo, CA | 104 | Sep 30, 2019 | Jul 25, 2019 | layoffSource ↗ |
| Novartis PharmaceuticalsSan Carlos, CA | 102 | Oct 1, 2019 | Jul 18, 2019 | closureSource ↗ |
| Verity Medical FoundationDaly City, CA | 9 | Jun 30, 2019 | Apr 30, 2019 | layoffSource ↗ |
| JCPennyDaly City, CA | 73 | Jul 5, 2019 | Apr 17, 2019 | closureSource ↗ |
| Verity Medical FoundationDaly City, CA | 5 | May 29, 2019 | Mar 29, 2019 | layoffSource ↗ |
| Core-MarkSouth San, CA | 18 | May 31, 2019 | Mar 29, 2019 | closureSource ↗ |
| Genentech, Inc. and Genentech USASouth San, CA | 54 | May 16, 2019 | Mar 28, 2019 | layoffSource ↗ |
| Oracle AmericaRedwood City, CA | 255 | May 21, 2019 | Mar 21, 2019 | layoffSource ↗ |
| AbbVie StemcentrxSouth San, CA | 178 | Apr 5, 2019 | Mar 13, 2019 | layoffSource ↗ |
| InstacartSan Mateo, CA | 41 | May 11, 2019 | Mar 13, 2019 | closureSource ↗ |
| SAPSouth San, CA | 94 | May 15, 2019 | Mar 12, 2019 | layoffSource ↗ |
| Verity Health System of CaliforniaDaly City, CA | 3 | Apr 16, 2019 | Feb 15, 2019 | layoffSource ↗ |