Layoff notices in San Mateo County at a glance
San Mateo County employers have filed 646 WARN notices with the EDD since July 1, 2014, naming 51,504 workers. The most recent notice is dated Sep 13, 2026. 187 of the notices show fewer than 60 days between notice and effective date outside the 2020 COVID window; the 60-day rule explains what that gap can mean for the workers involved. Since the EDD began reporting industry in 2026, the sectors filing most here are Manufacturing (758 workers), Finance and Insurance (320 workers), Professional Scientific and Technical Services (261 workers).
Notices in fiscal year 2026-2027, newest first
9 notices, 1,309 workers. Show all years.
| Employer | City | Notice date | Effective | Workers | Type | Days notice |
|---|---|---|---|---|---|---|
| Oracle America, Inc. | Redwood City | Sep 13, 2026 | Nov 12, 2026 | 279 | Layoff, permanent | 60 |
| LeeMAH Electronics | Brisbane | Sep 10, 2026 | Dec 20, 2026 | 62 | Closure, permanent | 101 |
| Arsenal Biosciences, Inc. | South San Francisco | Aug 30, 2026 | Oct 28, 2026 | 58 | Layoff, permanent | 59 under 60 |
| Cellares Corporation | South San Francisco | Aug 20, 2026 | Oct 19, 2026 | 100 | Layoff, permanent | 60 |
| Flying Food Group, LLC | Burlingame | Aug 13, 2026 | Oct 12, 2026 | 72 | Closure, permanent | 60 |
| LeeMAH Electronics | Brisbane | Aug 16, 2026 | Oct 15, 2026 | 205 | Closure, permanent | 60 |
| Visa | Foster City | Jul 30, 2026 | Sep 30, 2026 | 320 | Layoff, permanent | 62 |
| Yerba Mate Co., LLC - San Fernando Valley | South San Francisco | Jul 26, 2026 | Aug 31, 2026 | 1 | Layoff, permanent | 36 under 60 |
| LeeMAH Electronics | Brisbane | Jul 6, 2026 | Sep 7, 2026 | 212 | Closure, permanent | 63 |
Largest layoffs in San Mateo County since 2014
| Employer | Notices | Workers | Latest |
|---|---|---|---|
| Meta Platforms, Inc. | 67 | 6,603 | May 22, 2026 |
| Genentech, Inc. | 10 | 1,589 | Jun 25, 2026 |
| Lucky Chances Casino | 3 | 1,467 | Dec 16, 2020 |
| Oracle America, Inc. | 7 | 1,379 | Sep 13, 2026 |
| Verity Health System of California, Inc. | 4 | 1,307 | May 4, 2020 |
| Flying Food Group, LLC | 11 | 1,036 | Aug 13, 2026 |
| Genentech, Inc. and Genentech USA, Inc. | 5 | 870 | Nov 3, 2021 |
| Visa | 5 | 809 | Jul 30, 2026 |
| Rosewood Sand Hill | 3 | 758 | Dec 16, 2020 |
| DPR Construction | 1 | 715 | Mar 24, 2020 |
| Gilead Sciences, Inc. | 8 | 691 | Apr 30, 2026 |
| Deliv, Inc., dba Deliv California Inc. | 1 | 669 | May 7, 2020 |
| GoPro, Inc. | 6 | 610 | Oct 29, 2024 |
| Walmart | 5 | 534 | Jun 19, 2026 |
| THE RITZ-CARLTON HOTEL CO LLC, DBA THE RITZ-CARLTON, HALF | 1 | 507 | Mar 20, 2020 |
| The Ritz-Carlton Hotel Company, LLC, dba The Ritz | 1 | 493 | Mar 20, 2020 |
| LeeMAH Electronics | 3 | 479 | Sep 10, 2026 |
| See's Candies, Inc. | 2 | 434 | Apr 16, 2020 |
| Cruise LLC | 3 | 433 | Jul 3, 2025 |
| All About Parking | 4 | 426 | Feb 26, 2021 |
San Mateo County by fiscal year
| Fiscal year | Notices | Closures | Workers |
|---|---|---|---|
| 2026-2027 | 9 | 4 | 1,309 |
| 2025-2026 | 57 | 8 | 5,840 |
| 2024-2025 | 49 | 6 | 2,598 |
| 2023-2024 | 69 | 22 | 4,631 |
| 2022-2023 | 134 | 7 | 7,523 |
| 2021-2022 | 28 | 6 | 1,551 |
| 2020-2021 | 78 | 23 | 9,165 |
| 2019-2020 | 116 | 21 | 11,352 |
| 2018-2019 | 29 | 9 | 2,096 |
| 2017-2018 | 12 | 6 | 774 |
| 2016-2017 | 35 | 7 | 2,134 |
| 2015-2016 | 16 | 7 | 1,331 |
| 2014-2015 | 14 | 4 | 1,200 |
Cities in San Mateo County with notices
- Menlo Park119 notices, 10,247 workers
- South San Francisco117 notices, 7,791 workers
- Redwood City90 notices, 7,683 workers
- San Mateo65 notices, 4,851 workers
- Burlingame49 notices, 4,668 workers
- South San34 notices, 3,163 workers
- Daly City22 notices, 2,656 workers
- Brisbane44 notices, 2,432 workers
- San Bruno30 notices, 2,095 workers
- Half Moon Bay9 notices, 1,579 workers
- Foster City18 notices, 1,561 workers
- Colma3 notices, 1,198 workers
- San Carlos21 notices, 1,005 workers
- Millbrae4 notices, 150 workers
- Atherton1 notices, 129 workers
- Woodside1 notices, 56 workers
- Const4 notices, 46 workers
- Hacker1 notices, 34 workers
- Facebook1 notices, 22 workers
- Jeffer5 notices, 20 workers
- Independence1 notices, 4 workers
Local help after a layoff in San Mateo
A WARN notice is the start of a paper trail, not the end of your rights. Workers in San Mateo bring WARN back-pay claims in the Superior Court of the county, and the agency routes for the questions that usually travel with a layoff are the same statewide: unpaid final wages and vacation payout go to the Labor Commissioner, discrimination in who was selected goes to the Civil Rights Department (three years to file) or the EEOC (300 days). Our San Mateo employment law page covers the local courts, agencies and deadlines. Free, confidential review: (800) 371-3088.
Source: California EDD WARN reports, July 2014 to Oct 27, 2026. County and city are as stated on the notice; for 2014 to 2017 filings, where the EDD listed only a city, the county is assigned from that city. Back to the layoff tracker.
About this data: Notices come from the California Employment Development Department WARN reports (fiscal years 2014-2015 to today) and are reloaded from the EDD every Tuesday and Thursday. Employer names appear as the employer wrote them on the notice, grouped where the names clearly refer to the same company. A notice is not a finding that any law was broken. This page is general information, not legal advice about your situation.