| National Residential Mortgage | Scottsdale | 85260 | 7 - ARIZONA@WORK - Maricopa County | Feb 07, 2018 | Non-WARN | 
| Nature's Medicines | Show Low | 85901 | 2002 - ARIZONA@WORK - Northeastern Arizona | Aug 08, 2023 | Non-WARN | 
| Navigate Collaborate Innovate (NCI) | Sierra Vista | 85635 | 1 - ARIZONA@WORK - Southeastern Arizona | Oct 30, 2019 | Non-WARN | 
| NE AZ LWDB Show Low, AZ: Native Wings Complex Fire | Show Low | 85901 | 2002 - ARIZONA@WORK - Northeastern Arizona | Feb 04, 2022 | Non-WARN | 
| Nestle USA and Nestle Dryers Ice Cream l | Phoenix | 85004 | 5 - ARIZONA@WORK - City of Phoenix | Aug 16, 2019 | WARN | 
| New 4 U  (CPES) | Douglas |  | 1 - ARIZONA@WORK - Southeastern Arizona | May 18, 2020 | WARN | 
| Newrez LLC | Tempe | 85282 | 7 - ARIZONA@WORK - Maricopa County | Jun 28, 2024 | WARN | 
| NewStar Fresh Foods, LLC | Yuma | 85364 | 9 - ARIZONA@WORK - Yuma County | Sep 06, 2013 | WARN | 
| NewStar Fresh Foods, LLC | Yuma | 85364 | 9 - ARIZONA@WORK - Yuma County | Aug 15, 2014 | WARN | 
| New West Dental Ceramics | Lake Havasu | 86403 |  | May 11, 2020 | Non-WARN | 
| NextCare Urgent Care | Yuma | 85364 | 9 - ARIZONA@WORK - Yuma County | Feb 01, 2023 | Non-WARN | 
| Nifty thrifty (CPES) | Benson | 86005 | 1 - ARIZONA@WORK - Southeastern Arizona | May 18, 2020 | WARN | 
| Nikola Corporation | Phoenix | 85040 | 5 - ARIZONA@WORK - City of Phoenix | Feb 19, 2025 | WARN | 
| Nikola Corporation | Coolidge | 85128 | 2003 - ARIZONA@WORK - Pinal | Feb 19, 2025 | WARN | 
| Nobilis Health | Scottsdale | 85255 | 7 - ARIZONA@WORK - Maricopa County | Sep 13, 2019 | Non-WARN | 
| Nordstrom | Englewood | 80111 | 7 - ARIZONA@WORK - Maricopa County | Aug 21, 2025 | WARN | 
| Nordstrom Credit Bank | Englewood | 80111 | 7 - ARIZONA@WORK - Maricopa County | Jun 26, 2025 | WARN | 
| Nordstrom Credit Bank | Englewood | 80111 | 7 - ARIZONA@WORK - Maricopa County | May 29, 2025 | WARN | 
| Nordstrom Credit Bank | Englewood | 80111 | 7 - ARIZONA@WORK - Maricopa County | Jul 29, 2025 | WARN | 
| North American Savings Bank | Kansas City | 64131 | 7 - ARIZONA@WORK - Maricopa County | Jan 05, 2023 | WARN | 
| North Country HealthCare | Flagstaff | 86004 | 10 - ARIZONA@WORK - Coconino County | Apr 02, 2024 | Non-WARN | 
| Northern Arizona University | Flagstaff | 86011 |  | May 22, 2020 | Non-WARN | 
| Northrop Grumman | Chandler | 85286 | 7 - ARIZONA@WORK - Maricopa County | Jun 07, 2024 | WARN | 
| Northrop Grumman | Sierra Vista | 85635 | 1 - ARIZONA@WORK - Southeastern Arizona | Mar 09, 2020 | WARN | 
| Northrop Grumman | Yuma | 85365 | 9 - ARIZONA@WORK - Yuma County | May 24, 2013 | WARN |