| HJHGI Jamestown | Jamestown | KY | Chemical Manufacturing325120 | 1-19 | ◐ LIKELY ACTIVE |
| HCHood Container Greensboro | Jamestown | NC | Paper Manufacturing322211 | 20-99 | ◐ LIKELY ACTIVE |
| JMJamestown Macadam, Inc.- Blacktop | Jamestown | NY | Petroleum and Coal Products Manufacturing324121 | 20-99 | ◐ LIKELY ACTIVE |
| JTJamestown, TN | Jamestown | TN | Nonmetallic Mineral Product Manufacturing327331 | 1-19 | ◐ LIKELY ACTIVE |
| JVJamestown Vineyards | Jamestown | RI | Beverage and Tobacco Product Manufacturing312130 | — | ◐ LIKELY ACTIVE |
| LWLago Winery, LLC | Jamestown | PA | Beverage and Tobacco Product Manufacturing312130 | — | ◐ LIKELY ACTIVE |
| LMLegume Matrix LLC | Jamestown | ND | Food Manufacturing311999 | — | ◐ LIKELY ACTIVE |
| LPLivingston's Packing Co. | Jamestown | PA | Food Manufacturing311611 | — | ◐ LIKELY ACTIVE |
| MEMasterGrind EDM II | Jamestown | NY | Fabricated Metal Product Manufacturing332721 | 20-99 | ◐ LIKELY ACTIVE |
| NFNew Flyer America | Jamestown | NY | Fabricated Metal Product Manufacturing332710 | 100-499 | ◐ LIKELY ACTIVE |
| RWRegal Warehousing Services, Inc. DBA Jackson Ave Warehouse | Jamestown | NY | Fabricated Metal Product Manufacturing332311 | 20-99 | ◐ LIKELY ACTIVE |
| TGThe Gatehouse Winery | Jamestown | PA | Beverage and Tobacco Product Manufacturing312130 | — | ◐ LIKELY ACTIVE |
| TETitanX Engine Cooling, Inc. | Jamestown | NY | Transportation Equipment Manufacturing336390 | 100-499 | ◐ LIKELY ACTIVE |
| TITwist Inc. Plant 10 | Jamestown | OH | Fabricated Metal Product Manufacturing332613 | 1-19 | ◐ LIKELY ACTIVE |
| TPTwist Plants 1 and 7 | Jamestown | OH | Fabricated Metal Product Manufacturing332613 | 100-499 | ◐ LIKELY ACTIVE |
| UTUS Tool Group- Collins Jamestown | Jamestown | ND | Machinery Manufacturing333517 | 1-19 | ◐ LIKELY ACTIVE |
| VMVolpe Machining Services, LLC | Jamestown | RI | Fabricated Metal Product Manufacturing332710 | — | ◐ LIKELY ACTIVE |
| SISadoway Incorporated | Jamestown | RI | Primary Metal Manufacturing331410 | — | ◐ LIKELY ACTIVE |