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 |
|---|---|---|---|---|
| Dome ConstructionSouth San Francisco, CA | 83 | Mar 19, 2020 | Mar 25, 2020 | temporarySource ↗ |
| Truebeck ConstructionSan Mateo, CA | 113 | Mar 18, 2020 | Mar 25, 2020 | temporarySource ↗ |
| Boardwalk Auto CenterRedwood City, CA | 1 | Mar 24, 2020 | Mar 24, 2020 | temporarySource ↗ |
| PAG-Daly CityDaly City, CA | 53 | Mar 19, 2020 | Mar 24, 2020 | temporarySource ↗ |
| Lucky Chances CasinoDaly City, CA | 489 | Mar 15, 2020 | Mar 24, 2020 | temporarySource ↗ |
| DPR ConstructionRedwood City, CA | 715 | Mar 17, 2020 | Mar 24, 2020 | temporarySource ↗ |
| Park James HotelMenlo Park, CA | 63 | Apr 3, 2020 | Mar 24, 2020 | temporarySource ↗ |
| Peter Pan MotorsSan Mateo, CA | 50 | Mar 30, 2020 | Mar 24, 2020 | temporarySource ↗ |
| Hyatt Regency San Francisco AirportBurlingame, CA | 352 | Mar 22, 2020 | Mar 23, 2020 | temporarySource ↗ |
| Dariotis Group RestaurantsRedwood City, CA | 54 | Mar 23, 2020 | Mar 23, 2020 | temporarySource ↗ |
| Joe's WestsideDaly City, CA | 169 | Mar 21, 2020 | Mar 21, 2020 | layoffSource ↗ |
| THE RITZ-CARLTON HOTELHalf Moon Bay, CA | 493 | Mar 17, 2020 | Mar 20, 2020 | temporarySource ↗ |
| TriMarkBrisbane, CA | 36 | Apr 17, 2020 | Mar 20, 2020 | temporarySource ↗ |
| Stanford Park HotelMenlo Park, CA | 124 | Mar 20, 2020 | Mar 20, 2020 | temporarySource ↗ |
| Prime Time Athletic ClubBurlingame, CA | 103 | Mar 20, 2020 | Mar 20, 2020 | temporarySource ↗ |
| Pullman San Francisco BayRedwood City, CA | 145 | Mar 15, 2020 | Mar 20, 2020 | temporarySource ↗ |
| TriMarkBrisbane, CA | 34 | Mar 20, 2020 | Mar 20, 2020 | temporarySource ↗ |
| THE RITZ-CARLTON HOTELHalf Moon Bay, CA | 507 | Mar 17, 2020 | Mar 20, 2020 | temporarySource ↗ |
| dnata US Inflight CateringBrisbane, CA | 39 | Mar 22, 2020 | Mar 19, 2020 | layoffSource ↗ |
| Rosewood Sand HillMenlo Park, CA | 401 | Mar 17, 2020 | Mar 19, 2020 | temporarySource ↗ |
| FLYING FOOD GROUPBurlingame, CA | 14 | Mar 20, 2020 | Mar 19, 2020 | layoffSource ↗ |
| Hotel NiaMenlo Park, CA | 127 | Mar 18, 2020 | Mar 18, 2020 | temporarySource ↗ |
| La Petite BaleenHalf Moon Bay, CA | 134 | Mar 15, 2020 | Mar 16, 2020 | closureSource ↗ |
| Mylan PharmaceuticalsSan Carlos, CA | 93 | May 15, 2020 | Mar 11, 2020 | closureSource ↗ |
| Hilton San Francisco Airport BayfrontBurlingame, CA | 110 | Mar 11, 2020 | Mar 11, 2020 | layoffSource ↗ |