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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

581Non-cancelled notices
46,943Reported workers
6Future effective dates
Coverage is limited to connected sources and imported date ranges. 0 notices have unavailable worker counts. Company groups match normalized names; aliases below preserve exact employer names from filings. Methodology →

Notice history by year

202638 notices · 5,521 reported workers
202562 notices · 3,309 reported workers
202448 notices · 3,865 reported workers
2023129 notices · 5,388 reported workers
202244 notices · 4,115 reported workers
202142 notices · 2,917 reported workers
2020170 notices · 18,271 reported workers
201923 notices · 1,595 reported workers
201817 notices · 1,372 reported workers
20177 notices · 515 reported workers
20161 notices · 75 reported workers
Oracle America →California →Redwood City →LeeMAH Electronics →Brisbane →Arsenal Biosciences →South San Francisco →Cellares →FLYING FOOD GROUP →Burlingame →Visa →Foster City →Yerba Mate Co., LLC - South San Francisco →Flagship Facilities Services →Genentech →

Filings and attributed reports

Company / locationWorkersEffective dateNotice dateType / source
Penisula Jewish Communtiy CenterSan Mateo, CA392Mar 31, 2020Apr 1, 2020temporarySource ↗
All About Parking, Inc. (AAP)San Mateo, CA98Mar 31, 2020Mar 31, 2020layoffSource ↗
Evolution HospitalitySan Mateo, CA52Apr 3, 2020Mar 31, 2020temporarySource ↗
ViadSouth San Francisco, CA89Mar 25, 2020Mar 31, 2020temporarySource ↗
MV TransportationHalf Moon Bay, CA23Mar 30, 2020Mar 31, 2020layoffSource ↗
The Menlo Clock WorksMenlo Park, CA2Apr 1, 2020Mar 31, 2020layoffSource ↗
All About ParkingSan Mateo, CA96Mar 31, 2020Mar 31, 2020layoffSource ↗
AmTote International, Inc. - San Mateo RacetrackSan Mateo, CA1Mar 27, 2020Mar 31, 2020temporarySource ↗
CrunchSan Mateo, CA79Apr 1, 2020Mar 31, 2020temporarySource ↗
CrunchDaly City, CA75Apr 1, 2020Mar 31, 2020temporarySource ↗
International Marine ProductsSouth San Francisco, CA9Mar 31, 2020Mar 31, 2020layoffSource ↗
Marriott Hotel ServicesBurlingame, CA334Mar 17, 2020Mar 30, 2020temporarySource ↗
Reneson HotelsDaly City, CA24Apr 1, 2020Mar 30, 2020temporarySource ↗
Best Western El Rancho InnMillbrae, CA74Apr 3, 2020Mar 30, 2020temporarySource ↗
Residence Inn by MarriottSan Carlos, CA56Mar 18, 2020Mar 27, 2020temporarySource ↗
Tao's Dental CareSan Mateo, CA5Mar 17, 2020Mar 27, 2020temporarySource ↗
Novo ConstructionMenlo Park, CA22Mar 17, 2020Mar 27, 2020layoffSource ↗
Roam Artisan BurgersSan Mateo, CA20Mar 27, 2020Mar 27, 2020temporarySource ↗
Stonebridge CompaniesSouth San Francisco, CA69Mar 20, 2020Mar 26, 2020temporarySource ↗
ZazzleRedwood City, CA64Mar 30, 2020Mar 26, 2020temporarySource ↗
Cinemark USASan Bruno, CA74Mar 26, 2020Mar 26, 2020layoffSource ↗
Cinemark USASan Mateo, CA51Mar 26, 2020Mar 26, 2020layoffSource ↗
Cinemark USADaly City, CA84Mar 26, 2020Mar 26, 2020layoffSource ↗
Cinemark USARedwood City, CA98Mar 26, 2020Mar 26, 2020layoffSource ↗
Bayshore Motor GroupRedwood City, CA51Mar 17, 2020Mar 26, 2020temporarySource ↗

581 notices · Source check Oct 10, 2026

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