Blackstone Advanced Technologies LLC | Jamestown, NY | Fabricated Metal Product Manufacturing332322 | 100–499 | ● ACTIVE |
| DMDawson Metal Company INC | Jamestown, NY | Fabricated Metal Product Manufacturing332321 | 20–99 | ● ACTIVE |
Ellison Bronze INC | Falconer, NY | Fabricated Metal Product Manufacturing332321 | 20–99 | ● ACTIVE |
Falconer Electronics, INC | Falconer, NY | Computer and Electronic Product Manufacturing334412 | 20–99 | ● ACTIVE |
Hope's Windows, INC | Jamestown, NY | Fabricated Metal Product Manufacturing332321 | 100–499 | ● ACTIVE |
| IOInternational Ordnance Technologies, INC. | Jamestown, NY | Fabricated Metal Product Manufacturing332119 | 20–99 | ● ACTIVE |
Jamestown Container CORP | Falconer, NY | Paper Manufacturing322211 | 100–499 | ● ACTIVE |
Jamestown Electro Plating Works, INC | Jamestown, NY | Fabricated Metal Product Manufacturing332813 | 20–99 | ● ACTIVE |
| TBTrinity Biotech | Jamestown, NY | Chemical Manufacturing325413 | 20–99 | ● ACTIVE |
| CGCarbon Graphite Materials, INC | Brocton, NY | Nonmetallic Mineral Product Manufacturing327992 | — | ● ACTIVE |
Dunkirk Specialty Steel LLC | Dunkirk, NY | Primary Metal Manufacturing331111 | — | ● ACTIVE |
Growers Co-operative Grape Juice Company, INC. | Westfield, NY | Food Manufacturing311411 | — | ● ACTIVE |
Industrial Metal Finishing INC | Jamestown, NY | Fabricated Metal Product Manufacturing332813 | — | ● ACTIVE |
| OCOriginal Crunch Roll Factory LLC | Westfield, NY | Food Manufacturing311412 | 20–99 | ● ACTIVE |
Premier Precision Machining LLC | Falconer, NY | Fabricated Metal Product Manufacturing332993 | 20–99 | ● ACTIVE |
Rollform of Jamestown, INC. | Jamestown, NY | Fabricated Metal Product Manufacturing332114 | 20–99 | ● ACTIVE |
Ck Natural Fruit Juice, LLC | Westfield, NY | Food Manufacturing311411 | — | ● ACTIVE |
Cleaning Technologies Group, LLC | Jamestown, NY | Electrical Equipment, Appliance & Component Manufacturing335999 | — | ● ACTIVE |
| EGEaglesome Graphics INC | Jamestown, NY | Printing and Related Support Activities323111 | — | ● ACTIVE |
Karebay Biochem INC | Fredonia, NY | Chemical Manufacturing325199 | — | ● ACTIVE |
Microscope LLC | Lakewood, NY | Machinery Manufacturing333310 | — | ● ACTIVE |
| SESupport Enterprises, INC | Jamestown, NY | Textile Product Mills314910 | 20–99 | ● ACTIVE |
| VHVeterans Health Equipment LLC | Silver Creek, NY | Miscellaneous Manufacturing339113 | — | ● ACTIVE |
| APAnderson Precision | Jamestown, NY | Fabricated Metal Product Manufacturing332721 | 20–99 | ◐ LIKELY ACTIVE |
| NPNestle Purina Pet Care Company | Dunkirk, NY | Food Manufacturing311111 | 500+ | ◐ LIKELY ACTIVE |
| WKWeber Knapp Corporation | Jamestown, NY | Fabricated Metal Product Manufacturing332119 | 100–499 | ◐ LIKELY ACTIVE |
Bailey Manufacturing Company LLC | Forestville, NY | Fabricated Metal Product Manufacturing332116 | 20–99 | ◐ LIKELY ACTIVE |
| BIBush Industries INC | Jamestown, NY | Wood Product Manufacturing321211 | 100–499 | ◐ LIKELY ACTIVE |
Chautauqua Woods CORP | Dunkirk, NY | Wood Product Manufacturing321911 | — | ◐ LIKELY ACTIVE |
| CCColecraft Commercial Furnishings | Jamestown, NY | Furniture and Related Product Manufacturing337122 | 20–99 | ◐ LIKELY ACTIVE |
| EIEcr International INC | Dunkirk, NY | Machinery Manufacturing333414 | 100–499 | ◐ LIKELY ACTIVE |
| FCFancher Chair CO INC | Falconer, NY | Furniture and Related Product Manufacturing337000 | 100–499 | ◐ LIKELY ACTIVE |
Renold INC | Westfield, NY | Machinery Manufacturing333612 | — | ◐ LIKELY ACTIVE |
| RMRhi Monofrax LTD | Falconer, NY | Nonmetallic Mineral Product Manufacturing327120 | — | ◐ LIKELY ACTIVE |
| STSouthern Tier Brewing Company | Lakewood, NY | Beverage and Tobacco Product Manufacturing312120 | — | ◐ LIKELY ACTIVE |
| TCThe Carriage House Companies INC | Fredonia, NY | Food Manufacturing311421 | — | ◐ LIKELY ACTIVE |
| BBBlackstone Business Enterprises INC | Jamestown, NY | Fabricated Metal Product Manufacturing332322 | — | ◐ LIKELY ACTIVE |
| CCCps CORP | Dunkirk, NY | Chemical Manufacturing325910 | — | ◐ LIKELY ACTIVE |
| CICummins INC Jamestown Engine Plant | Lakewood, NY | Machinery Manufacturing333618 | — | ◐ LIKELY ACTIVE |
| UPUlrich Planfiling Equipment CORP | Lakewood, NY | Fabricated Metal Product Manufacturing332999 | — | ◐ LIKELY ACTIVE |
| CBClassic Brass INC | Jamestown, NY | Fabricated Metal Product Manufacturing332510 | — | ◇ UNVERIFIED |
| SJSuit-kote Jamestown | Jamestown, NY | Petroleum and Coal Products Manufacturing324121 | — | ◇ UNVERIFIED |
| WFWelch Foods, INC. | Westfield, NY | Food Manufacturing311411 | — | ◇ UNVERIFIED |
| ALArtone LLC | Jamestown, NY | Furniture and Related Product Manufacturing337110 | 20–99 | ◐ LIKELY ACTIVE |
| BBBetter Baked Foods Westfield | Westfield, NY | Food Manufacturing311412 | 20–99 | ◐ LIKELY ACTIVE |
| CPChautauqua Precision Machining, INC. | Ashville, NY | Fabricated Metal Product Manufacturing332710 | — | ◐ LIKELY ACTIVE |
| JAJamestown Advanced Products, CORP. | Jamestown, NY | Fabricated Metal Product Manufacturing332439 | 100–499 | ◐ LIKELY ACTIVE |
| MDMogen David Wine CORP | Westfield, NY | Beverage and Tobacco Product Manufacturing312130 | — | ◐ LIKELY ACTIVE |
| RMRobert Mazza INC. | Westfield, NY | Beverage and Tobacco Product Manufacturing312120 | — | ◐ LIKELY ACTIVE |
| SUSkf USA INC. | Falconer, NY | Fabricated Metal Product Manufacturing332991 | — | ◐ LIKELY ACTIVE |