WARN Act Layoffs in San Mateo County, California
WARN Act mass layoff and plant closure notices in San Mateo County, California, updated daily.
14
Notices (2026)
728
Workers Affected
Meta
Biggest Filing (219)
Information & Technology
Top Industry
Data Insights
Industry Breakdown
Workers affected by industry sector
Latest WARN Notices in San Mateo County
| Company | City | Employees | Notice Date | Type |
|---|---|---|---|---|
| C3.ai | 71 | |||
| Meta Platforms, Inc. - 220 Jefferson | Menlo Park | 2 | Layoff | |
| Meta Platforms, Inc. - 190 Jefferson | Menlo Park | 1 | Layoff | |
| Meta Platforms, Inc. - 180 Jefferson | Menlo Park | 2 | Layoff | |
| Meta Platforms, Inc. - 1 Hacker | Menlo Park | 6 | Layoff | |
| Meta Platforms, Inc. - 305 Constitution | Menlo Park | 39 | Layoff | |
| Meta/Facebook | Menlo Park | 1 | ||
| Meta/Facebook | Menlo Park | 2 | ||
| Chan Zuckerberg Initiative, LLC - Remote | Redwood City | 32 | Layoff | |
| Chan Zuckerberg Initiative | Redwood | 38 | Layoff | |
| Meta | Burlingame | 219 | Layoff | |
| Resonetics | 61 | |||
| Meta | Menlo Park | 219 | ||
| Informatica | Redwood City | 35 | Layoff | |
| San Bruno CityNet Services | Real San Bruno | 13 | Closure | |
| Dairyland Produce | Brisbane | 22 | Layoff | |
| Transdev Services | Redwood City | 77 | Closure | |
| Transdev Services | Los Angeles | 77 | ||
| Genentech | South San Francisco | 118 | Layoff | |
| Genentech | South South San Francisco | 118 |
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Cities in San Mateo County
Menlo Park (144)
South San Francisco (133)
Redwood City (103)
San Mateo (61)
Burlingame (56)
Brisbane (43)
San Bruno (28)
Daly City (25)
San Carlos (22)
Foster City (21)
Belmont (20)
South San (19)
San Francisco (18)
Fremont (15)
Half Moon Bay (10)
South South San Francisco (7)
Millbrae (5)
Los Angeles (5)
San Diego (4)
Colma (4)