| Jabil |  |  | 7 - ARIZONA@WORK - Maricopa County | Sep 05, 2013 | WARN | 
| Jacksons Car Wash | Phoenix | 85028 | 5 - ARIZONA@WORK - City of Phoenix | Apr 13, 2020 | Non-WARN | 
| Jacobs Technology Inc. | Sierra Vista | 85635 | 1 - ARIZONA@WORK - Southeastern Arizona | Feb 01, 2024 | WARN | 
| James River Insurance Company |  |  | 7 - ARIZONA@WORK - Maricopa County | May 15, 2020 | WARN | 
| JCPenney | Phoenix | 85015 | 5 - ARIZONA@WORK - City of Phoenix | Jul 20, 2020 | WARN | 
| JCPenney | Tucson | 85714 | 6 - ARIZONA@WORK - Pima | Jul 21, 2020 | WARN | 
| Jjs Gyros | Phoenix | 85027 | 5 - ARIZONA@WORK - City of Phoenix | Apr 13, 2020 | Non-WARN | 
| JMJ Equipment Transport Inc. | Yuma | 85365 | 9 - ARIZONA@WORK - Yuma County | Jun 11, 2025 | Non-WARN | 
| JOANN | Hudson | 44236 | 7 - ARIZONA@WORK - Maricopa County | Mar 04, 2025 | Non-WARN | 
| Joe's Diner | Phoenix | 85013 | 7 - ARIZONA@WORK - Maricopa County | Mar 31, 2020 | Non-WARN | 
| John C. Lincoln Health Network's North Mountain |  |  | 7 - ARIZONA@WORK - Maricopa County | Dec 06, 2010 | WARN | 
| Jordan Manufacturing | Yuma | 85365 | 9 - ARIZONA@WORK - Yuma County | Jun 14, 2022 | Non-WARN | 
| Kaléo Inc. | Richmond | 23219 | 7 - ARIZONA@WORK - Maricopa County | Sep 30, 2024 | WARN | 
| Kalil Bottling Company | Tucson | 85719 | 6 - ARIZONA@WORK - Pima | May 31, 2024 | WARN | 
| Kaplan University |  |  | 7 - ARIZONA@WORK - Maricopa County | Dec 07, 2010 | WARN | 
| Katerra | Scottsdale | 85258 | 7 - ARIZONA@WORK - Maricopa County | Apr 02, 2020 | WARN | 
| Katerra | Phoenix | 85043 | 5 - ARIZONA@WORK - City of Phoenix | Dec 03, 2019 | WARN | 
| Katerra | Scottsdale | 85258 | 7 - ARIZONA@WORK - Maricopa County | Oct 09, 2019 | WARN | 
| Katerra Inc. | Scottsdale | 85258 | 7 - ARIZONA@WORK - Maricopa County | Jun 01, 2021 | WARN | 
| KDC Construction | Tempe | 85281 | 7 - ARIZONA@WORK - Maricopa County | Mar 20, 2020 | WARN | 
| KeHE Distributors, INC | Naperville | 60563 | 7 - ARIZONA@WORK - Maricopa County | Aug 23, 2023 | WARN | 
| Kellogg's | Phoenix | 85043 | 5 - ARIZONA@WORK - City of Phoenix | May 26, 2017 | WARN | 
| Ken's Tours Lower Antelope Canyon | Page | 86040 |  | May 19, 2020 | Non-WARN | 
| Kett Engineering Corporation | Surprise | 85374 | 7 - ARIZONA@WORK - Maricopa County | Mar 11, 2024 | WARN | 
| Kimpton Hotel Palomar Phoenix | Phoenix | 85004 | 5 - ARIZONA@WORK - City of Phoenix | Jun 23, 2020 | WARN |