US WARN intelligence

Ontario, California WARN notices

Ontario, California has 111 non-cancelled imported WARN notices reporting 8,617 workers affected. 0 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 1 eligible official filings for Ontario, California, reporting 18 affected workers. 0 worker counts are unavailable. The newest official notice date is Aug 5, 2026.

111 non-cancelled direct government records and 0 attributed secondary records appear in the full archive. Recent official event types: layoff. 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

111Non-cancelled notices
8,617Reported workers
0Future 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

20261 notices · 18 reported workers
20214 notices · 143 reported workers
202056 notices · 3,832 reported workers
201911 notices · 634 reported workers
20189 notices · 561 reported workers
20178 notices · 532 reported workers
201615 notices · 2,222 reported workers
20154 notices · 222 reported workers
20143 notices · 453 reported workers

Filings and attributed reports

Company / locationWorkersEffective dateNotice dateType / source
Eclipse AdvantageOntario, CA18Oct 5, 2026Aug 5, 2026layoffSource ↗
Three G'sOntario, CA65Jul 18, 2021May 19, 2021closureSource ↗
ASC Engineered Solutions InternationalOntario, CA14Jun 4, 2021Apr 21, 2021closureSource ↗
Cardinal Logistics ManagementOntario, CA59Apr 30, 2021Feb 26, 2021layoffSource ↗
Feed the ChildrenOntario, CA5Mar 31, 2021Jan 27, 2021closureSource ↗
O.W. LeeOntario, CA120Mar 1, 2021Dec 18, 2020closureSource ↗
Market Broiler OntarioOntario, CA1Dec 11, 2020Dec 11, 2020temporarySource ↗
Southwest Airlines - Ontario International AirportOntario, CA54Mar 15, 2021Dec 3, 2020temporarySource ↗
Walt Disney Parks and Resorts U.S.Ontario, CA7Nov 23, 2020Nov 12, 2020temporarySource ↗
Walt Disney Parks and Resorts U.S.Ontario, CA35Dec 31, 2020Oct 29, 2020layoffSource ↗
DT EmployerOntario, CA39Oct 29, 2020Oct 15, 2020layoffSource ↗
DT EmployerOntario, CA168Mar 20, 2020Oct 15, 2020temporarySource ↗
Ontario Food & BeverageOntario, CA71Sep 30, 2020Oct 1, 2020layoffSource ↗
Walt Disney Parks and Resorts U.S.Ontario, CA1Dec 4, 2020Sep 29, 2020layoffSource ↗
Dave and Buster'sOntario, CA68Jul 1, 2020Jul 15, 2020temporarySource ↗
Summit MachineOntario, CA41Jul 7, 2020Jul 7, 2020layoffSource ↗
Summit MachineOntario, CA123Jun 29, 2020Jun 25, 2020temporarySource ↗
Pacific Clinics Advanced Behavioral HealthcareOntario, CA1Jun 5, 2020Jun 4, 2020layoffSource ↗
AIO AcquisitionOntario, CA8Apr 14, 2020May 26, 2020layoffSource ↗
AIO AcquisitionOntario, CA5May 22, 2020May 22, 2020layoffSource ↗
Ventura FoodsOntario, CA96May 1, 2020Apr 29, 2020temporarySource ↗
Ontario AutomotiveOntario, CA93Mar 20, 2020Apr 28, 2020temporarySource ↗
AIO AcquisitionOntario, CA11Apr 28, 2020Apr 27, 2020temporarySource ↗
BradyOntario, CA19Apr 28, 2020Apr 27, 2020temporarySource ↗
BradyOntario, CA1Apr 28, 2020Apr 27, 2020temporarySource ↗

111 notices · Source check Oct 8, 2026