| Northridge Hospital Medical Center CA | — | 0 | — | — |
| Northridge Insight Inc. NJ | Professional & Technical Services | 1 | $156,000 | — |
| Northridge Metal Fabrication, LLC MI | Manufacturing | 0 | — | F |
| Northrop Brumman KS | — | 0 | — | — |
| NORTHROP GRUMMAN AL | — | 0 | — | — |
| Northrop Grumman AZ | Manufacturing | 0 | — | A |
| Northrop Grumman CA | Manufacturing | 0 | — | F |
| Northrop Grumman CO | — | 0 | — | — |
| Northrop Grumman LA | — | 0 | — | — |
| Northrop Grumman MD | Manufacturing | 0 | — | F |
| Northrop Grumman MN | Administrative & Waste Services | 0 | — | B |
| Northrop Grumman MO | — | 0 | — | — |
| Northrop Grumman MS | — | 0 | — | — |
| Northrop Grumman NJ | — | 0 | — | — |
| Northrop Grumman OK | — | 0 | — | — |
| Northrop Grumman PA | — | 0 | — | — |
| Northrop Grumman VA | — | 0 | — | — |
| Northrop Grumman VT | — | 0 | — | — |
| Northrop Grumman WA | — | 0 | — | — |
| Northrop Grumman WV | Manufacturing | 0 | — | B |
| Northrop Grumman (Airborne And Maritime) CA | — | 0 | — | — |
| Northrop Grumman (Technical Services Sector) CA | — | 0 | — | — |
| Northrop Grumman - Department of Veterans Affairs TX | — | 0 | — | — |
| Northrop Grumman - Update 1/15/18 CO | — | 0 | — | — |
| Northrop Grumman - Updated 1/2/18 CO | — | 0 | — | — |
| Northrop Grumman Continental Maritime CA | — | 0 | — | — |
| Northrop Grumman Coporation VA | — | 0 | — | — |
| Northrop Grumman Corp (Aerospace Systems) CA | — | 0 | — | — |
| Northrop Grumman Corp (Continental Maritime) CA | — | 0 | — | — |
| Northrop Grumman Corp Shipbuilding/Continental Mar CA | — | 0 | — | — |
| Northrop Grumman Corp. UT | Manufacturing | 0 | — | D |
| Northrop Grumman Corporation, Aerospace CA | — | 0 | — | — |
| Northrop Grumman Corporation, Mission Systems Sector CA | — | 0 | — | — |
| Northrop Grumman Enterprise Shared Services CA | — | 0 | — | — |
| Northrop Grumman Fort Polk LA | — | 0 | — | — |
| Northrop Grumman Information Systems CA | — | 0 | — | — |
| Northrop Grumman Information Systems VA | — | 0 | — | — |
| Northrop Grumman Innovation Systems FL | Manufacturing | 0 | — | A |
| Northrop Grumman Innovation Systems UT | Manufacturing | 0 | — | D |
| Northrop Grumman Navigation Systems CA | — | 0 | — | — |
| Northrop Grumman Propulsion Systems UT | Manufacturing | 0 | — | B |
| Northrop Grumman Revised IN | — | 0 | — | — |
| Northrop Grumman Systems Corporation AL | Manufacturing | 0 | — | A |
| Northrop Grumman Systems Corporation AZ | Manufacturing | 0 | — | B |
| Northrop Grumman Systems Corporation CA | Manufacturing | 0 | — | F |
| Northrop Grumman Systems Corporation CO | Manufacturing | 0 | — | A |
| Northrop Grumman Systems Corporation CT | Manufacturing | 0 | — | F |
| Northrop Grumman Systems Corporation FL | Manufacturing | 0 | — | C |
| Northrop Grumman Systems Corporation GA | Manufacturing | 0 | — | C |
| Northrop Grumman Systems Corporation IL | Manufacturing | 0 | — | B |
