WARN Act Layoffs in Ontario, California

WARN Act mass layoff and plant closure notices in Ontario, California, updated daily.

Notices (All Time)

2,177

Workers Affected

UPS

Biggest Filing (445)

Transportation

Top Industry

Data Insights

Workers affected by industry sector

Workers affected by notice type

WARN Act layoff notices
Company	City	Employees	Notice Date	Type
National Distribution Centers, LLC (NDC)	Ontario	45	2025-10-15	Closure
Delaware North Companies Travel Hospitality Services	Avian Street Ontario	92	2025-08-14
Horizon Hobby	Ontario	19	2025-08-05	Closure
Williamson Morgan & Associates	Ontario	22	2025-07-23	Layoff
Accelerate360 Distribution	Lindsay Privado Dr. Ontario	66	2025-06-03	Closure
UPS	Ontario	355	2025-05-15	Layoff
F21 OpCO, LLC DBA Forever 21	Ontario	70	2025-02-26	Closure
Neovia Logistics Distribution	Ontario	145	2025-02-20	Closure
Clarion Management	Ontario	5	2025-02-19	Closure
Clarion Management	Ontario	6	2025-02-19	Closure
Panera	Ontario	77	2025-02-14	Closure
Panera	Ontario	55	2025-02-13	Closure
Mountain Valley Express	Ontario	19	2024-12-05	Layoff
Universal Protection Service, LP DBA Allied Universal Security Services	Ontario	68	2024-11-22	Layoff
UPS	Ontario	445	2024-11-14	Temporary Closure
SunPower	Guasti Road Ontario	18	2024-07-29	Layoff
F&E Aircraft Maintenance DBA FEAM Aero, LLC	Ontario	26	2024-07-03	Layoff
UPS	Ontario	153	2024-06-13	Layoff
Charter Communications Customer Contact Center	Ontario	430	2024-06-13	Closure
Chedraui USA, Inc. DBA El Super Distribution Center	Ontario	61	2024-05-17	Layoff