| AUArgos USA - Martinsburg | Martinsburg | WV | Nonmetallic Mineral Product Manufacturing327310 | — | ◐ LIKELY ACTIVE |
| CBContinental Brick - Martinsburg Facility | Martinsburg | WV | Nonmetallic Mineral Product Manufacturing327120 | — | ◐ LIKELY ACTIVE |
| EIEcolab INC | Martinsburg | WV | Chemical Manufacturing325611 | — | ◐ LIKELY ACTIVE |
| QIQuad/graphics, INC | Martinsburg | WV | Printing and Related Support Activities323111 | — | ◐ LIKELY ACTIVE |
| WFWenger Feeds Llc/martinsburg Mill | Martinsburg | PA | Food Manufacturing311000 | 1-19 | ◐ LIKELY ACTIVE |
| BIBrentwood Industries Inc., Martinsburg WV | Martinsburg | WV | Plastics and Rubber Products Manufacturing326121 | 100-499 | ◐ LIKELY ACTIVE |
| HBHh Brown Shoe Co/cove Shoe Martinsburg | Martinsburg | PA | Leather and Allied Product Manufacturing316210 | — | ◐ LIKELY ACTIVE |
Quad Graphics, INC. - Wv Annex | Martinsburg | WV | Printing and Related Support Activities323111 | — | ◐ LIKELY ACTIVE |
| TITreplar inc | Martinsburg | WV | Plastics and Rubber Products Manufacturing326199 | 100-499 | ◐ LIKELY ACTIVE |
| PIPrinting Impressions | Martinsburg | WV | Printing and Related Support Activities323111 | — | ◐ LIKELY ACTIVE |
| AMA&M Manufacturing Co | Martinsburg | WV | Chemical Manufacturing325998 | 100-499 | ◐ LIKELY ACTIVE |
| BGBerryville Graphics - Martinsburg | Martinsburg | WV | Printing and Related Support Activities323117 | 100-499 | ◐ LIKELY ACTIVE |
| BDBlack Draft Farm LLC | Martinsburg | WV | Beverage and Tobacco Product Manufacturing312140 | — | ◐ LIKELY ACTIVE |
| BDBootleg Distilling | Martinsburg | WV | Beverage and Tobacco Product Manufacturing312140 | — | ◐ LIKELY ACTIVE |
| CICargill Incorporated | Martinsburg | PA | Food Manufacturing311119 | 1-19 | ◐ LIKELY ACTIVE |
| CSCMC Steel West Virginia | Martinsburg | WV | Primary Metal Manufacturing331110 | 20-99 | ◐ LIKELY ACTIVE |
| CSCove Shoe | Martinsburg | PA | Leather and Allied Product Manufacturing316210 | 100-499 | ◐ LIKELY ACTIVE |
| CMCP&P Martinsburg | Martinsburg | WV | Nonmetallic Mineral Product Manufacturing327390 | 20-99 | ◐ LIKELY ACTIVE |
| EUEcolab US20/21 | Martinsburg | WV | Chemical Manufacturing325611 | 100-499 | ◐ LIKELY ACTIVE |
| MWMartinsburg Wv - Annex | Martinsburg | WV | Printing and Related Support Activities323111 | 20-99 | ◐ LIKELY ACTIVE |
| MWMartinsburg WV Truss | Martinsburg | WV | Wood Product Manufacturing321215 | 20-99 | ◐ LIKELY ACTIVE |
| NHNorse Hall LLC | Martinsburg | WV | Beverage and Tobacco Product Manufacturing312130 | — | ◐ LIKELY ACTIVE |
| PVPly-Gem Variform | Martinsburg | WV | Plastics and Rubber Products Manufacturing326199 | 100-499 | ◐ LIKELY ACTIVE |
| RSRoaring Spring Paper Products | Martinsburg | PA | Paper Manufacturing322230 | 20-99 | ◐ LIKELY ACTIVE |
| SWSecond Wind Signs LLC | Martinsburg | WV | Miscellaneous Manufacturing339950 | — | ◐ LIKELY ACTIVE |
| SCSpring Cove Container | Martinsburg | PA | Paper Manufacturing322211 | 20-99 | ◐ LIKELY ACTIVE |
| TRThe Rusty Nail | Martinsburg | WV | Beverage and Tobacco Product Manufacturing312130 | — | ◐ LIKELY ACTIVE |