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US WARN intelligence

Contra Costa County, California WARN notices

Contra Costa County, California has 308 non-cancelled imported WARN notices reporting 18,751 workers affected. 19 notices have future effective dates. These totals cover imported records only.

308Non-cancelled notices
18,751Reported workers
19Future 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

202633 notices · 729 reported workers
202536 notices · 1,226 reported workers
202449 notices · 1,831 reported workers
202324 notices · 1,720 reported workers
202214 notices · 878 reported workers
202110 notices · 655 reported workers
2020109 notices · 8,469 reported workers
201914 notices · 1,858 reported workers
201814 notices · 972 reported workers
20175 notices · 413 reported workers
Corteva Agriscience LLC →California →Pittsburg →Shell Catalyst & Technologies →Martinez →Raley's Store No. 336 →Brentwood →John Muir Health - 2540 East Street →Concord →John Muir Health - 2740 Grant Street →John Muir Health - 5003 Commercial Circle →John Muir Physician Network - 2700 Grant Street →John Muir Behavioral Health - 2740 Grant Street →John Muir Health - 2700 Grant Street →John Muir Health - 3480 Buskirk Ave. →

Filings and attributed reports

Company / locationWorkersEffective dateNotice dateType / source
Corteva Agriscience LLCPittsburg, CA2Oct 30, 2026Sep 28, 2026layoffSource ↗
Shell Catalyst & TechnologiesMartinez, CA64Nov 30, 2026Sep 9, 2026closureSource ↗
Raley's Store No. 336Brentwood, CA51Nov 3, 2026Aug 27, 2026closureSource ↗
John Muir Health - 2540 East StreetConcord, CA3Oct 28, 2026Aug 27, 2026layoffSource ↗
John Muir Health - 2740 Grant StreetConcord, CA2Oct 28, 2026Aug 27, 2026layoffSource ↗
John Muir Health - 5003 Commercial CircleConcord, CA2Oct 28, 2026Aug 27, 2026layoffSource ↗
John Muir Physician Network - 2700 Grant StreetConcord, CA1Oct 28, 2026Aug 27, 2026layoffSource ↗
John Muir Behavioral Health - 2740 Grant StreetConcord, CA1Oct 28, 2026Aug 27, 2026layoffSource ↗
John Muir Health - 2700 Grant StreetConcord, CA1Oct 28, 2026Aug 27, 2026layoffSource ↗
John Muir Health - 3480 Buskirk Ave.Pleasant Hill, CA1Oct 28, 2026Aug 27, 2026layoffSource ↗
John Muir Health - Treat Blvd.Walnut Creek, CA23Oct 28, 2026Aug 27, 2026layoffSource ↗
John Muir Health - 1450 Treat Blvd.Walnut Creek, CA4Oct 28, 2026Aug 27, 2026layoffSource ↗
John Muir Health - 1601 Ygnacio Valley RoadWalnut Creek, CA15Oct 28, 2026Aug 27, 2026layoffSource ↗
John Muir Health - 177 La Casa ViaWalnut Creek, CA2Oct 28, 2026Aug 27, 2026layoffSource ↗
John Muir Physician Network - 1450 Treat Blvd.Walnut Creek, CA6Oct 28, 2026Aug 27, 2026layoffSource ↗
John Muir Physician Network - 1601 Ygnacio Valley RoadWalnut Creek, CA1Oct 28, 2026Aug 27, 2026layoffSource ↗
Corteva Agriscience LLCPittsburg, CA2Oct 30, 2026Aug 18, 2026layoffSource ↗
EBALDC (120 Macdonald Ave)Contra Costa, CA1Oct 10, 2026Aug 11, 2026layoffSource ↗
EBALDC (907 Lake Street)San Pablo, CA2Oct 10, 2026Aug 11, 2026layoffSource ↗
ChevronSan Ramon, CA180Sep 1, 2026Jul 1, 2026layoffSource ↗
Corteva AgriscienceContra Costa, CA1Aug 28, 2026Jun 23, 2026layoffSource ↗
Sangamo Therapeutics, Inc.Contra Costa, CA47Jun 22, 2026Jun 22, 2026layoffSource ↗
Vine Hospitality (LB Steak Bishop Ranch, LP)Suite 1614 San Ramon, CA51Jun 23, 2026Jun 21, 2026closureSource ↗
Off Duty Officers, Inc. (4873 Lone Tree Way)Contra Costa, CA5Jul 30, 2026Jun 2, 2026layoffSource ↗
First Transit, Inc.Contra Costa, CA194Jun 30, 2026Apr 27, 2026closureSource ↗

308 notices · Source check Oct 7, 2026