| Rio Aggregate Services, INC. | Mohave Valley | 86440 | 11 - ARIZONA@WORK - Mohave and La Paz Counties | Dec 20, 2023 | Non-WARN | 
| RICOH USA Inc. | Tempe | 85281 | 7 - ARIZONA@WORK - Maricopa County | Sep 01, 2016 | WARN | 
| Residence Inn/Courtyard Phoenix Downtown | Phoenix | 85004 | 5 - ARIZONA@WORK - City of Phoenix | Mar 27, 2020 | WARN | 
| Republic National Distributing Company |  |  | 7 - ARIZONA@WORK - Maricopa County | May 27, 2011 | WARN | 
| Renew (CPES) | Tucson | 85740 | 6 - ARIZONA@WORK - Pima | May 18, 2020 | WARN | 
| Renaissance Phoenix Downtown Hotel |  |  | 5 - ARIZONA@WORK - City of Phoenix | Jun 01, 2020 | WARN | 
| Red Lobster | Tucson, Oro Valley | 85737 | 6 - ARIZONA@WORK - Pima | May 16, 2024 | Non-WARN | 
| Red Lobster | Yuma | 85365 | 9 - ARIZONA@WORK - Yuma County | Aug 25, 2024 | Non-WARN | 
| Raytheon Company | Sierra Vista | 85635 | 1 - ARIZONA@WORK - Southeastern Arizona | Jun 06, 2019 | WARN | 
| Raytheon | Sierra Vista | 85635 | 1 - ARIZONA@WORK - Southeastern Arizona | Mar 28, 2019 | WARN | 
| RA Mesa Corp | Mesa | 85204 | 6 - ARIZONA@WORK - Pima | Apr 05, 2020 | WARN | 
| RA Kierland Restaurant | Scottsdale | 85254 | 6 - ARIZONA@WORK - Pima | Apr 05, 2020 | WARN | 
| Radisson Suites Hotel Tucson | Tucson | 85710 | 6 - ARIZONA@WORK - Pima | Mar 29, 2019 | WARN | 
| Quality Care Network | Phoenix | 85034 | 5 - ARIZONA@WORK - City of Phoenix | Jul 28, 2015 | WARN | 
| QB Intermediate Holdings, LLC, AKA Quality Built, LLC | Fort Lauderdale | 33301 | 7 - ARIZONA@WORK - Maricopa County | Jul 07, 2025 | WARN | 
| Punch Bowl social | Phoenix | 85004 | 5 - ARIZONA@WORK - City of Phoenix | Mar 18, 2020 | WARN | 
| Pulte Building Services (PBS) |  |  | 7 - ARIZONA@WORK - Maricopa County | Nov 12, 2010 | WARN | 
| Prospect Enterprises, Inc. | Phoenix | 85009 | 5 - ARIZONA@WORK - City of Phoenix | Apr 27, 2015 | WARN | 
| Prospect | Phoenix | 85034 | 7 - ARIZONA@WORK - Maricopa County | Apr 09, 2020 | WARN | 
| Progrexion Teleservices, Inc. | Phoenix | 85027 | 5 - ARIZONA@WORK - City of Phoenix | Apr 28, 2023 | WARN | 
| Pro-Fit Kitchen | Bullhead City | 86442 | 11 - ARIZONA@WORK - Mohave and La Paz Counties | Jun 26, 2024 | Non-WARN | 
| Primrose School | Phoenix | 85022 | 5 - ARIZONA@WORK - City of Phoenix | Apr 22, 2020 | Non-WARN | 
| Primary Financial Services |  |  | 5 - ARIZONA@WORK - City of Phoenix | Oct 06, 2014 | WARN | 
| Prileo Home Care | Las Vegas | 89147 | 5 - ARIZONA@WORK - City of Phoenix | Aug 01, 2024 | WARN | 
| Prent Corporation | Janesville | 53547 | 10 - ARIZONA@WORK - Coconino County | Feb 12, 2025 | Non-WARN |