| VOVuteq Operations Support Center | Princeton | IN | Transportation Equipment Manufacturing336112 | 20-99 | ◐ LIKELY ACTIVE |
| AWAcme Wood Preserving, Inc., Princeton | Princeton | WV | Wood Product Manufacturing321114 | — | ◐ LIKELY ACTIVE |
| PRPrinceton Refinery | Princeton | LA | Petroleum and Coal Products Manufacturing324110 | — | ◐ LIKELY ACTIVE |
| AWAllegheny Wood Products INC Mill 9 | Princeton | WV | Wood Product Manufacturing321113 | — | ◇ UNVERIFIED |
| HMHurst Manufacturing Facility / Nidec Motor Corporation | Princeton | IN | Electrical Equipment, Appliance & Component Manufacturing335312 | — | ◇ UNVERIFIED |
| LCLcn Closers Division of Schlage Lock CO LLC | Princeton | IL | Fabricated Metal Product Manufacturing332510 | — | ◇ UNVERIFIED |
| SMSpecial Metals | Princeton | KY | Primary Metal Manufacturing331110 | — | ◇ UNVERIFIED |
| GLGuerbet LLC | Princeton | NJ | Chemical Manufacturing325412 | — | ◐ LIKELY ACTIVE |
| DDDistinctive Door Designs INC | Princeton | MN | Wood Product Manufacturing321911 | — | ◇ UNVERIFIED |
 Aaa Paving and Sealing, Inc., Princeton | Princeton | WV | Petroleum and Coal Products Manufacturing324121 | — | ◐ LIKELY ACTIVE |
| BCBarnhill Contracting Company - Princeton | Princeton | NC | Petroleum and Coal Products Manufacturing324121 | — | ◐ LIKELY ACTIVE |
| BSBeshear Sawmill INC | Princeton | KY | Wood Product Manufacturing321113 | — | ◐ LIKELY ACTIVE |
| CPCatalent Princeton | Princeton | NJ | Chemical Manufacturing325412 | 20-99 | ◐ LIKELY ACTIVE |
| CPChampion Pneumatic Machinery | Princeton | IL | Machinery Manufacturing333912 | — | ◐ LIKELY ACTIVE |
| CICon-Weld Industries LLC | Princeton | WV | Machinery Manufacturing333131 | 100-499 | ◐ LIKELY ACTIVE |
| EAErdman Automation Corporation | Princeton | MN | Machinery Manufacturing333249 | 100-499 | ◐ LIKELY ACTIVE |
| SMSidmar Manufacturing INC | Princeton | MN | Miscellaneous Manufacturing339113 | — | ◐ LIKELY ACTIVE |
| STS T Wooten Corporation-princeton | Princeton | NC | Petroleum and Coal Products Manufacturing324121 | — | ◐ LIKELY ACTIVE |
| TPTreehouse Private Brands INC | Princeton | KY | Food Manufacturing311812 | 500+ | ◐ LIKELY ACTIVE |
| WMWindsor Machine and Stamping | Princeton | IN | Fabricated Metal Product Manufacturing332510 | 20-99 | ◐ LIKELY ACTIVE |
| AAdvaxis | Princeton | NJ | Chemical Manufacturing325194 | — | ◇ UNVERIFIED |
| AEAlgonquian Ethanol LLC | Princeton | IL | Chemical Manufacturing325193 | — | ◇ UNVERIFIED |
| AWAllegheny Wood Products International, Inc., Princeton | Princeton | WV | Wood Product Manufacturing321113 | — | ◇ UNVERIFIED |
| ALAppalachian Log Structures | Princeton | WV | Wood Product Manufacturing321999 | — | ◇ UNVERIFIED |
| BGBills Garage | Princeton | WV | Plastics and Rubber Products Manufacturing326212 | — | ◇ UNVERIFIED |
| BMBluestone Machine Company | Princeton | WV | Fabricated Metal Product Manufacturing332710 | — | ◇ UNVERIFIED |
| BSBrake Supply | Princeton | WV | Machinery Manufacturing333131 | — | ◇ UNVERIFIED |
| CSCentral Supply Company of Wv - Princeton Plant | Princeton | WV | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| CCCharleys Concrete CO LTD | Princeton | TX | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| DTDixie Tractor | Princeton | WV | Machinery Manufacturing333111 | — | ◇ UNVERIFIED |
| DHDownard Hydraulics INC | Princeton | WV | Fabricated Metal Product Manufacturing332813 | — | ◇ UNVERIFIED |
| EVEastern Vault Company INC | Princeton | WV | Nonmetallic Mineral Product Manufacturing327390 | — | ◇ UNVERIFIED |
| EIEnnis INC | Princeton | IL | Printing and Related Support Activities323111 | — | ◇ UNVERIFIED |
| FMFederal Materials Concrete INC | Princeton | KY | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| FMFreedom Motorsports | Princeton | WV | Machinery Manufacturing333996 | — | ◇ UNVERIFIED |
| GBGallus Biopharmaceuticals LLC | Princeton | NJ | Chemical Manufacturing325414 | — | ◇ UNVERIFIED |
| HCHansen Corporation | Princeton | IN | Electrical Equipment, Appliance & Component Manufacturing335312 | — | ◇ UNVERIFIED |
| HWHarper Wyman CO | Princeton | IL | Fabricated Metal Product Manufacturing332911 | — | ◇ UNVERIFIED |
| HCHydraulic Concepts | Princeton | WV | Machinery Manufacturing333319 | — | ◇ UNVERIFIED |
| IBIllinois Biofuel Group LLC | Princeton | IL | Chemical Manufacturing325998 | — | ◇ UNVERIFIED |
| IPIndustrial Plating & Machine, Inc., Princeton | Princeton | WV | Fabricated Metal Product Manufacturing332710 | — | ◇ UNVERIFIED |
 Lamb Machine | Princeton | WV | Machinery Manufacturing333131 | — | ◇ UNVERIFIED |
| MCMcjunkin CORP | Princeton | WV | Fabricated Metal Product Manufacturing332996 | — | ◇ UNVERIFIED |
| MTMidwest Trophy Manufacturing CO | Princeton | IL | Miscellaneous Manufacturing339910 | — | ◇ UNVERIFIED |
| MPMurphy-brown - Princeton Feed Mill | Princeton | MO | Apparel Manufacturing315999 | — | ◇ UNVERIFIED |
| PPPlastic Products CO INC - Pri | Princeton | MN | Plastics and Rubber Products Manufacturing326199 | — | ◇ UNVERIFIED |
| PSPremium Standard Farms-princeton Feedmill | Princeton | MO | Food Manufacturing311119 | — | ◇ UNVERIFIED |
| PMPrinceton Machinery Services, Inc., Princeton | Princeton | WV | Fabricated Metal Product Manufacturing332813 | — | ◇ UNVERIFIED |
| PRPrinceton Redi-mix INC | Princeton | IL | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| QCQuality Crane | Princeton | WV | Machinery Manufacturing333923 | — | ◇ UNVERIFIED |
