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 2023-2024, newest first
69 notices, 4,631 workers. Show all years.
| Employer | City | Notice date | Effective | Workers | Type | Days notice |
|---|---|---|---|---|---|---|
| Astellas Gene Therapies, Inc. | South San Francisco | Jun 19, 2024 | Jun 19, 2024 | 10 | Layoff, permanent | 0 under 60 |
| Thought Stream dba Bluescape | Redwood City | Jun 12, 2024 | Jun 12, 2024 | 35 | Closure, permanent | 0 under 60 |
| La Petite Baleen Inc. | San Bruno | Jun 3, 2024 | Aug 5, 2024 | 77 | Closure, temporary | 63 |
| Phoenix Labs USA Operations, Inc. aka Phoenix Labs (Foster | San Mateo | May 22, 2024 | May 22, 2024 | 162 | Layoff, permanent | 0 under 60 |
| Walmart | San Bruno | May 17, 2024 | Aug 9, 2024 | 250 | Layoff, permanent | 84 |
| Walmart | San Bruno | May 17, 2024 | Aug 9, 2024 | 11 | Layoff, permanent | 84 |
| Bolt Biotherapeutics, Inc. | Redwood City | May 14, 2024 | Jul 15, 2024 | 38 | Layoff, permanent | 62 |
| Indeed Inc. | San Mateo | May 13, 2024 | Jul 12, 2024 | 87 | Layoff, permanent | 60 |
| BioMarin Pharmaceutical Inc. | Brisbane | May 14, 2024 | Jul 13, 2024 | 3 | Layoff, permanent | 60 |
| Bristol Myers Squibb | Redwood City | Apr 29, 2024 | Jun 25, 2024 | 114 | Layoff, permanent | 57 under 60 |
| Pacific Biosciences of California, Inc. | Menlo Park | Apr 29, 2024 | Jun 28, 2024 | 71 | Layoff, permanent | 60 |
| Rivian Automotive, LLC | South San Francisco | Apr 19, 2024 | Jun 18, 2024 | 1 | Layoff, permanent | 60 |
| Freenome, Inc. | South San Francisco | Apr 23, 2024 | Jun 22, 2024 | 118 | Layoff, permanent | 60 |
| Gilead Sciences, Inc. | Foster City | Apr 23, 2024 | Jun 28, 2024 | 58 | Layoff, permanent | 66 |
| Twenty Twenty Therapeutics LLC | South San Francisco | Apr 23, 2024 | Jun 26, 2024 | 76 | Closure, permanent | 64 |
| Aura Management Co. | Millbrae | Apr 18, 2024 | Jun 25, 2024 | 20 | Closure, permanent | 68 |
| Genentech, Inc. | South San Francisco | Apr 3, 2024 | Jun 5, 2024 | 436 | Layoff, permanent | 63 |
| Telecare Corporation - House of Transitions, Program 163 "Casa C" | Redwood City | Apr 3, 2024 | Jun 3, 2024 | 100 | Closure, permanent | 61 |
| Sanofi | South San Francisco | Apr 3, 2024 | Jun 3, 2024 | 100 | Closure, permanent | 61 |
| The Ronin Project, Inc. | San Mateo | Mar 4, 2024 | Mar 1, 2024 | 131 | Closure, permanent | 3 days after effective date |
| Bay Area PL Services dba BayPLS | San Bruno | Mar 4, 2024 | May 4, 2024 | 87 | Layoff, permanent | 61 |
| Catalent, Inc. | South San Francisco | Mar 5, 2024 | May 24, 2024 | 50 | Closure, permanent | 80 |
| Catalent, Inc. | South San Francisco | Mar 5, 2024 | May 24, 2024 | 40 | Closure, permanent | 80 |
| Balfour Beatty US Civils | San Mateo | Feb 26, 2024 | Apr 26, 2024 | 222 | Layoff, permanent | 60 |
| Sony Interactive Entertainment LLC | San Mateo | Feb 27, 2024 | Mar 16, 2024 | 118 | Layoff, permanent | 18 under 60 |
| Janssen Research & Development, LLC | Brisbane | Feb 23, 2024 | Apr 26, 2024 | 55 | Closure, permanent | 63 |
| Marriott San Mateo Hotel | San Mateo | Feb 21, 2024 | May 1, 2024 | 127 | Closure, permanent | 70 |
| Riot Games | Redwood City | Jan 22, 2024 | Mar 25, 2024 | 6 | Layoff, permanent | 63 |
| Del Monte Capitol Meat Company, LLC dba Allen Brothers | Brisbane | Feb 1, 2024 | Mar 31, 2024 | 92 | Closure, permanent | 59 under 60 |
| Activision Blizzard | Foster City | Jan 25, 2024 | Mar 30, 2024 | 76 | Layoff, permanent | 65 |
| Nevro Corp. | Redwood City | Jan 8, 2024 | Mar 8, 2024 | 63 | Layoff, permanent | 60 |
| Plenty Unlimited Inc. | South San Francisco | Jan 19, 2024 | Jan 18, 2024 | 55 | Layoff, permanent | 1 days after effective date |
| Allakos Inc. | San Carlos | Jan 16, 2024 | Jan 18, 2024 | 59 | Layoff, permanent | 2 under 60 |
| Trove Recommerce | Brisbane | Dec 21, 2023 | Apr 1, 2024 | 62 | Closure, permanent | 102 |
| Trove Recommerce | Brisbane | Dec 21, 2023 | Mar 1, 2024 | 60 | Closure, permanent | 71 |
| Trove Recommerce | Brisbane | Dec 21, 2023 | May 1, 2024 | 2 | Closure, permanent | 132 |
| Pfizer | Dec 15, 2023 | Feb 12, 2024 | 52 | Layoff, permanent | 59 under 60 | |
| Cruise LLC | San Francisco | Dec 14, 2023 | Dec 14, 2023 | 330 | Layoff, permanent | 0 under 60 |
| Cruise LLC | South San Francisco | Dec 14, 2023 | Dec 14, 2023 | 18 | Layoff, permanent | 0 under 60 |
| Carbon, Inc. | Redwood City | Dec 12, 2023 | Feb 15, 2024 | 60 | Layoff, permanent | 65 |
| GE United Technologies II Inc. | Brisbane | Nov 21, 2023 | Nov 21, 2023 | 60 | Closure, permanent | 0 under 60 |
| Talis Biomedical Corporation | Redwood City | Nov 14, 2023 | Jan 14, 2024 | 103 | Closure, permanent | 61 |
| Kaiser Foundation Hospitals | South San Francisco | Nov 6, 2023 | Jan 4, 2024 | 1 | Layoff, permanent | 59 under 60 |
| Informatica LLC | Redwood City | Nov 1, 2023 | Dec 31, 2023 | 90 | Layoff, permanent | 60 |
| Sangamo Therapeutics, Inc. | Brisbane | Nov 1, 2023 | Jan 2, 2024 | 65 | Closure, permanent | 62 |
| Sangamo Therapeutics, Inc. | Brisbane | Nov 1, 2023 | Jan 2, 2024 | 37 | Layoff, permanent | 62 |
| Exabeam, Inc. | San Mateo | Oct 25, 2023 | Jan 1, 2024 | 94 | Layoff, permanent | 68 |
| Gilead Sciences, Inc. | Foster City | Oct 4, 2023 | Dec 15, 2023 | 41 | Layoff, permanent | 72 |
| Gilead Sciences, Inc. | Foster City | Oct 4, 2023 | Mar 15, 2023 | 1 | Layoff, permanent | 203 days after effective date |
| Robinhood Markets, Inc. | Menlo Park | Aug 17, 2023 | Oct 16, 2023 | 2 | Layoff, permanent | 60 |
| Robinhood Markets, Inc. | Menlo Park | Sep 20, 2023 | Nov 20, 2023 | 1 | Layoff, permanent | 61 |
| Universal Protection Service, LP dba Allied Universal Security | Menlo Park | Jul 27, 2023 | Sep 1, 2023 | 13 | Layoff, permanent | 36 under 60 |
| Universal Protection Service, LP dba Allied Universal Security | Menlo Park | Jul 27, 2023 | Sep 1, 2023 | 12 | Layoff, permanent | 36 under 60 |
| Universal Protection Service, LP dba Allied Universal Security | Menlo Park | Jul 27, 2023 | Sep 1, 2023 | 9 | Layoff, permanent | 36 under 60 |
| Universal Protection Service, LP dba Allied Universal Security | Menlo Park | Jul 27, 2023 | Sep 1, 2023 | 3 | Layoff, permanent | 36 under 60 |
| Illumina, Inc. | San Mateo | Aug 7, 2023 | Sep 6, 2023 | 1 | Layoff, permanent | 30 under 60 |
| CSL Vifor | Redwood City | Aug 21, 2023 | Oct 25, 2023 | 85 | Layoff, permanent | 65 |
| Codexis, Inc. | San Carlos | Jul 20, 2023 | Sep 30, 2023 | 31 | Layoff, permanent | 72 |
| Codexis, Inc. | Redwood City | Jul 20, 2023 | Sep 30, 2023 | 28 | Layoff, permanent | 72 |
| Charles River Laboratories, Inc. | South San Francisco | Jul 19, 2023 | Sep 19, 2023 | 55 | Closure, permanent | 62 |
| Alto Operations California, LLC | Belmont | Jul 14, 2023 | Sep 15, 2023 | 34 | Closure, permanent | 63 |
| Yellow Corporation | Brisbane | Aug 1, 2023 | Jul 30, 2023 | 30 | Closure, permanent | 2 days after effective date |
| Illumina, Inc. | San Mateo | Jul 13, 2023 | Aug 14, 2023 | 14 | Layoff, permanent | 32 under 60 |
| Thermo Fisher Scientific | South San Francisco | Jun 22, 2023 | Aug 22, 2023 | 64 | Layoff, permanent | 61 |
| Proterra Operating Company, Inc. | Burlingame | Jun 27, 2023 | Jul 28, 2023 | 48 | Layoff, permanent | 31 under 60 |
| Amgen | San Carlos | Jun 13, 2023 | Sep 1, 2023 | 4 | Closure, permanent | 80 |
| Illumina, Inc. | Foster City | Jun 21, 2023 | Jul 21, 2023 | 71 | Layoff, permanent | 30 under 60 |
| Robinhood Markets, Inc. | Menlo Park | Jun 29, 2023 | Sep 1, 2023 | 23 | Layoff, permanent | 64 |
| Sumo Logic, Inc. | Redwood City | Jun 7, 2023 | Jun 8, 2023 | 79 | Layoff, permanent | 1 under 60 |
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.