| SUStockmeier Urethanes Usa, INC | Clarksburg | WV | Chemical Manufacturing325211 | 20-99 | ◐ LIKELY ACTIVE |
| EUEuroptec Usa, INC. | Clarksburg | WV | Nonmetallic Mineral Product Manufacturing327215 | — | ◐ LIKELY ACTIVE |
| NPNorma Pennsylvania | Clarksburg | PA | Fabricated Metal Product Manufacturing332510 | 100-499 | ◐ LIKELY ACTIVE |
| PNPeoples Natural Gas/egry Sta | Clarksburg | PA | Petroleum and Coal Products Manufacturing324000 | — | ◐ LIKELY ACTIVE |
| AMAce Materials | Clarksburg | WV | Nonmetallic Mineral Product Manufacturing327320 | 1-19 | ◐ LIKELY ACTIVE |
| BVBatia Vineyards | Clarksburg | CA | Beverage and Tobacco Product Manufacturing312130 | — | ◐ LIKELY ACTIVE |
| BHBurnt Hill Farm, LLC | Clarksburg | MD | Beverage and Tobacco Product Manufacturing312130 | — | ◐ LIKELY ACTIVE |
| CMCompton Metals INC | Clarksburg | WV | Fabricated Metal Product Manufacturing332322 | — | ◐ LIKELY ACTIVE |
| CDComus Design and Construction, INC | Clarksburg | MD | Fabricated Metal Product Manufacturing332311 | — | ◐ LIKELY ACTIVE |
| HEHeringer Estates | Clarksburg | CA | Beverage and Tobacco Product Manufacturing312130 | — | ◐ LIKELY ACTIVE |
| JWJulietta Winery INC | Clarksburg | CA | Beverage and Tobacco Product Manufacturing312130 | — | ◐ LIKELY ACTIVE |
| KFKirchhoff Family Wines | Clarksburg | CA | Beverage and Tobacco Product Manufacturing312130 | — | ◐ LIKELY ACTIVE |
| LELive Edge Vineyards | Clarksburg | MD | Beverage and Tobacco Product Manufacturing312130 | — | ◐ LIKELY ACTIVE |
| LMLockheed Martin Corporation Clarksburg (1508) | Clarksburg | WV | Transportation Equipment Manufacturing336413 | 20-99 | ◐ LIKELY ACTIVE |
Medegen Medical Products (2) | Clarksburg | WV | Plastics and Rubber Products Manufacturing326111 | 20-99 | ◐ LIKELY ACTIVE |
| MSMinard's Spaghetti Inn, Inc. | Clarksburg | WV | Food Manufacturing311612 | — | ◐ LIKELY ACTIVE |
| MLMiner's Leap Winery | Clarksburg | CA | Beverage and Tobacco Product Manufacturing312130 | — | ◐ LIKELY ACTIVE |
| RGRiver Grove Winery | Clarksburg | CA | Beverage and Tobacco Product Manufacturing312130 | — | ◐ LIKELY ACTIVE |
| RRRiver Road Cider Works | Clarksburg | CA | Beverage and Tobacco Product Manufacturing312130 | — | ◐ LIKELY ACTIVE |
| SCSentage Corporation | Clarksburg | WV | Miscellaneous Manufacturing339116 | — | ◐ LIKELY ACTIVE |
| SASkana Aluminum West Virginia | Clarksburg | WV | Primary Metal Manufacturing331315 | 20-99 | ◐ LIKELY ACTIVE |
| SWSolomon Wine Company | Clarksburg | CA | Beverage and Tobacco Product Manufacturing312130 | — | ◐ LIKELY ACTIVE |
| TDThales Defense & Security INC | Clarksburg | MD | Computer and Electronic Product Manufacturing334220 | — | ◐ LIKELY ACTIVE |
| TWThree Wine Company | Clarksburg | CA | Beverage and Tobacco Product Manufacturing312130 | — | ◐ LIKELY ACTIVE |