| Albertsons LLC | Phoenix | 85032 | 7 - ARIZONA@WORK - Maricopa County | Jan 13, 2014 | WARN | 
| Albertsons 2929 | Gilbert | 85297 | 7 - ARIZONA@WORK - Maricopa County | Jun 21, 2019 | WARN | 
| Albertsons | Phoenix | 85028 | 5 - ARIZONA@WORK - City of Phoenix | Jan 05, 2018 | WARN | 
| Albertson Company #969 |  |  | 7 - ARIZONA@WORK - Maricopa County | Jan 06, 2017 | WARN | 
| Albertson Company #966 |  |  | 7 - ARIZONA@WORK - Maricopa County | Jan 06, 2017 | Non-WARN | 
| Albertson Company #1026 |  |  | 7 - ARIZONA@WORK - Maricopa County | Jan 06, 2017 | WARN | 
| Alaska Airlines | Phoenix | 85034 | 5 - ARIZONA@WORK - City of Phoenix | Jul 29, 2020 | WARN | 
| Alaska Airlines | Chandler | 85226 | 7 - ARIZONA@WORK - Maricopa County | Jul 29, 2020 | WARN | 
| Alamo Drafthouse Cinema |  |  | 7 - ARIZONA@WORK - Maricopa County | Apr 13, 2020 | Non-WARN | 
| Ahern Rentals Inc. | Phoenix | 85006 | 5 - ARIZONA@WORK - City of Phoenix | Mar 28, 2020 | WARN | 
| Aeroturbine | Phoenix | 85340 | 7 - ARIZONA@WORK - Maricopa County | Jan 27, 2016 | WARN | 
| AeroGuard |  |  | 5 - ARIZONA@WORK - City of Phoenix | Feb 12, 2021 | WARN | 
| Aegis Communications Group, Inc. | Sierra Vista | 85635 | 1 - ARIZONA@WORK - Southeastern Arizona | Apr 29, 2013 | WARN | 
| Aecom | Glendale | 85310 | 7 - ARIZONA@WORK - Maricopa County | Jan 17, 2020 | WARN | 
| Aecom | Luke AFB | 85012 | 7 - ARIZONA@WORK - Maricopa County | Jul 29, 2019 | WARN | 
| Advantage Logistics Southwest, Inc. |  |  | 7 - ARIZONA@WORK - Maricopa County | Jun 06, 2016 | WARN | 
| ADESA/AFC | Chandler | 85226 | 7 - ARIZONA@WORK - Maricopa County | Jun 29, 2020 | WARN | 
| Adams and Associates | Phoenix | 85004 | 7 - ARIZONA@WORK - Maricopa County | Jun 03, 2025 | Non-WARN | 
| ACS, LLC | Yuma | 85365 | 9 - ARIZONA@WORK - Yuma County | May 04, 2016 | WARN | 
| ACS, LLC | Yuma | 85365 | 9 - ARIZONA@WORK - Yuma County | Feb 21, 2018 | WARN | 
| ACS, LLC | Yuma | 85365 | 9 - ARIZONA@WORK - Yuma County | May 04, 2016 | WARN | 
| ACP Services, LLC | Glendale | 85308 | 7 - ARIZONA@WORK - Maricopa County | Aug 28, 2013 | WARN | 
| Acosta Sales & Marketing | Phoenix | 85040 | 5 - ARIZONA@WORK - City of Phoenix | Jun 19, 2014 | WARN | 
| Aco Polymer | Casa Grande | 85122 |  | Apr 15, 2020 | Non-WARN | 
| Abrazo Scottsdale Campus | Phoenix | 85032 | 5 - ARIZONA@WORK - City of Phoenix | Jul 13, 2018 | WARN |