US WARN intelligence
San Bernardino County, California WARN notices
San Bernardino County, California has 627 non-cancelled imported WARN notices reporting 48,945 workers affected. 2 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 44 eligible official filings for San Bernardino County, California, reporting 4,363 affected workers. 0 worker counts are unavailable. The newest official notice date is Sep 22, 2026.
627 non-cancelled direct government records and 0 attributed secondary records appear in the full archive. Recent official event types: layoff, closure, temporary. 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
Notice history by year
Filings and attributed reports
| Company / location | Workers | Effective date | Notice date | Type / source |
|---|---|---|---|---|
| Benchmark ArrowheadLake Arrowhead, CA | 114 | Jul 28, 2020 | Jun 29, 2020 | layoffSource ↗ |
| True ReligionFontana, CA | 33 | Jun 30, 2020 | Jun 26, 2020 | layoffSource ↗ |
| Summit MachineOntario, CA | 123 | Jun 29, 2020 | Jun 25, 2020 | temporarySource ↗ |
| Big Bear Mountain ResortBig Bear Lake, CA | 1 | Aug 1, 2020 | Jun 24, 2020 | layoffSource ↗ |
| Mike Thompson RV, ColtonColton, CA | 68 | Apr 3, 2020 | Jun 24, 2020 | temporarySource ↗ |
| Vista MetalsFontana, CA | 66 | Jun 29, 2020 | Jun 23, 2020 | layoffSource ↗ |
| Pali Mountain Conference CenterRunning Springs, CA | 17 | Jun 17, 2020 | Jun 18, 2020 | layoffSource ↗ |
| Pali InstituteRunning Springs, CA | 35 | Jun 17, 2020 | Jun 18, 2020 | layoffSource ↗ |
| Pali CampRunning Springs, CA | 71 | Jun 17, 2020 | Jun 18, 2020 | layoffSource ↗ |
| Granite SummitRunning Springs, CA | 60 | Jun 17, 2020 | Jun 18, 2020 | layoffSource ↗ |
| HartwellRancho Cucamonga, CA | 57 | Jun 29, 2020 | Jun 18, 2020 | temporarySource ↗ |
| HOWMET AerospaceFontana, CA | 75 | Jul 6, 2020 | Jun 18, 2020 | temporarySource ↗ |
| MV Transportation, Inc. - Omni Trans/San BernardinoSan Bernardino, CA | 63 | Jun 12, 2020 | Jun 12, 2020 | closureSource ↗ |
| Howmet AerospaceRancho Cucamonga, CA | 36 | Jun 11, 2020 | Jun 4, 2020 | layoffSource ↗ |
| Howmet AerospaceFontana, CA | 4 | Jun 11, 2020 | Jun 4, 2020 | layoffSource ↗ |
| Unical MROSan Bernardino, CA | 31 | Jun 4, 2020 | Jun 4, 2020 | layoffSource ↗ |
| OmnitransSan Bernardino, CA | 169 | Mar 16, 2020 | Jun 4, 2020 | layoffSource ↗ |
| Pacific Clinics Advanced Behavioral HealthcareOntario, CA | 1 | Jun 5, 2020 | Jun 4, 2020 | layoffSource ↗ |
| San Manuel Band of Mission IndiansHighland, CA | 87 | May 31, 2020 | Jun 2, 2020 | layoffSource ↗ |
| San Manuel CasinoHighland, CA | 251 | May 31, 2020 | Jun 2, 2020 | layoffSource ↗ |
| Howmet AerospaceFontana, CA | 62 | Jun 11, 2020 | May 27, 2020 | layoffSource ↗ |
| AIO AcquisitionOntario, CA | 8 | Apr 14, 2020 | May 26, 2020 | layoffSource ↗ |
| AIO AcquisitionOntario, CA | 5 | May 22, 2020 | May 22, 2020 | layoffSource ↗ |
| San Manuel Band of Mission Indians.Highland, CA | 121 | May 31, 2020 | May 21, 2020 | closureSource ↗ |
| San Manuel CasinoHighland, CA | 719 | May 31, 2020 | May 21, 2020 | layoffSource ↗ |