WARN Act mass layoff and plant closure notices in Ontario, California, updated daily.
Workers affected by industry sector
Workers affected by notice type
| Company | City | Employees | Notice Date | Type |
|---|---|---|---|---|
| National Distribution Centers, LLC (NDC) | Ontario | 45 | 2025-10-15 | Closure |
| Horizon Hobby, LLC | A Ontario | 19 | 2025-08-05 | Closure |
| Williamson Morgan & Associates LLC | Ontario | 22 | 2025-07-23 | Layoff |
| Accelerate360 Distribution LLC | Lindsay Privado Dr. Ontario | 66 | 2025-06-03 | Closure |
| DHL Supply Chain | Ontario | 346 | 2025-05-01 | Closure |
| Cardinal | Ontario | 45 | 2025-04-28 | Layoff |
| FEAM Aero | Ste D Ontario | 8 | 2025-04-03 | Layoff |
| F21 OpCO, LLC dba Forever 21 | Ontario | 70 | 2025-02-26 | Closure |
| Clarion Management, Inc | Ontario | 5 | 2025-02-19 | Closure |
| Clarion Management, Inc | Ontario | 6 | 2025-02-19 | Closure |
| Panera, LLC | Ontario | 77 | 2025-02-14 | Closure |
| Chedraui USA, Inc | Ontario | 115 | 2025-01-03 | Layoff |
| Mountain Valley Express, LLC | Ontario | 19 | 2024-12-05 | Layoff |
| Universal Protection Service, LP dba Allied Universal Security Services | Avenue Ontario | 68 | 2024-11-22 | Layoff |
| Converse, Inc | Ontario | 31 | 2024-09-16 | Layoff |
| Converse, Inc | Ontario | 46 | 2024-09-16 | Layoff |
| SunPower Corporation | Guasti Road Ontario | 18 | 2024-07-29 | Layoff |
| TRM Gamma Aerospace Acquisition, LLC | Ontario | 24 | 2024-07-11 | Closure |
| F&E Aircraft Maintenance dba FEAM Aero, LLC | Ste D Ontario | 26 | 2024-07-03 | Layoff |
| Ups | Ontario | 153 | 2024-06-13 | Layoff |
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