WARN Act filings affecting workers in Contra Costa, California.
Last updated: Apr 23, 2026 · Showing last 24 months
Contra Costa, CA has recorded 19 WARN filings affecting 337 workers over the past 24 months. The largest filer is Corteva Agriscience, with 28 workers affected. Of these, 4 involved facility closures and 15 were layoff events. Filing dates range from Jul 15, 2025 through Mar 30, 2026.
If your employer filed a WARN notice affecting workers in Contra Costa, you are entitled to 60 days advance written notice before your last day. During the notice period, you remain employed with regular pay and benefits. If your employer gave less than 60 days notice, you may be entitled to back pay and benefits for each day of the shortfall. After your last day, file for unemployment insurance with your state workforce agency as soon as possible. Review your COBRA options to continue health coverage for up to 18 months. Visit your local America's Job Center for free career counseling, resume help, and retraining vouchers.
Apply online at your state workforce agency. You may be eligible before your last day.
Continue your employer health plan for up to 18 months, or compare lower-cost options on the Health Insurance Marketplace.
Employers with 100 or more employees must give 60 days written notice before mass layoffs or plant closings.
Free career counseling, resume help, job search assistance, and retraining programs through CareerOneStop.
Interview prep, job search management, and career planning tools to help you land your next role.
We don't have a job center listed for Contra Costa specifically, but you can find nearby centers on the California page.
All data on this site is sourced from official WARN Act filings published by state workforce agencies. Filings are updated regularly but may not reflect same-day submissions. Coverage varies by state.
| Company | Type | Workers | Effective | Filed |
|---|---|---|---|---|
| Sentinel Transportation 3050 Wilbur Ave Antioch CA 94509 |
Layoff | 7 | 2026-05-31 | 2026-03-30 |
| Corteva Agriscience 7x in 12 mo 901 Loveridge Road Pittsburg CA 94565 |
Layoff | 3 | 2026-06-05 | 2026-03-17 |
| Heritage Bank of Commerce 387 Diable Blvd. Danville CA 94526 |
Layoff | 4 | 2026-04-17 | 2026-02-27 |
| Raley's 3632 Lone Tree Way Antioch CA 94509 |
Closure | 43 | 2026-04-28 | 2026-02-20 |
| Corteva Agriscience 7x in 12 mo 901 Loveridge Road Pittsburg CA 94565 |
Closure | 3 | 2026-04-24 | 2026-02-18 |
| Corteva Agriscience 7x in 12 mo 901 Loveridge Road Pittsburg CA 94565 |
Layoff | 1 | 2026-02-27 | 2026-01-22 |
| Henkel 5110 Port Chicago Hwy Suite A Concord CA 94520 |
Closure | 13 | 2026-01-30 | 2025-11-20 |
| Verizon 2770 Shadelands Dr., Bldg 11 Walnut Creek CA 94598 |
Layoff | 54 | 2026-01-23 | 2025-11-20 |
| Corteva Agriscience 7x in 12 mo 901 Loveridge Road Pittsburg CA 94565 |
Layoff | 4 | 2026-02-27 | 2025-11-18 |
| Corteva Agriscience 7x in 12 mo 901 Loveridge Road Pittsburg CA 94565 |
Layoff | 3 | 2026-01-02 | 2025-10-21 |
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