 Align Production Systems LLC | Decatur, IL | Machinery Manufacturing333111 | 20–99 | ● ACTIVE |
 Best Friends Distillery L.l.c. | Argenta, IL | Beverage and Tobacco Product Manufacturing312140 | — | ● ACTIVE |
 Heinkel's Packing Company, INC. | Decatur, IL | Food Manufacturing311611 | — | ● ACTIVE |
 T/cci Manufacturing, L.l.c. | Decatur, IL | Machinery Manufacturing333415 | 100–499 | ● ACTIVE |
| PDPerry Dynamics INC | Decatur, IL | Miscellaneous Manufacturing339112 | — | ● ACTIVE |
 Green Valley Manufacturing of Illinois, INC. | Decatur, IL | Machinery Manufacturing333924 | — | ● ACTIVE |
 Hanger Prosthetics & Orthotics, INC | Decatur, IL | Miscellaneous Manufacturing339113 | — | ● ACTIVE |
| DFDecatur Foundry, INC. | Decatur, IL | Primary Metal Manufacturing331511 | — | ◐ LIKELY ACTIVE |
| PPPrimary Products Ingredients Americas LLC - Decatur | Decatur, IL | Food Manufacturing311221 | — | ◐ LIKELY ACTIVE |
 Archer Daniels Midland Company - Decatur Corn Plant | Decatur, IL | Food Manufacturing311119 | — | ◐ LIKELY ACTIVE |
| CICaterpillar INC | Decatur, IL | Machinery Manufacturing333120 | — | ◐ LIKELY ACTIVE |
| MCMueller CO | Decatur, IL | Primary Metal Manufacturing331511 | — | ◐ LIKELY ACTIVE |
| VRVeostalpine Railway Systems Nortrak LLC | Decatur, IL | Plastics and Rubber Products Manufacturing326199 | — | ◐ LIKELY ACTIVE |
| ACAdm CO | Decatur, IL | Fabricated Metal Product Manufacturing332313 | — | ◇ UNVERIFIED |
| ICInternational Control Services INC. | Decatur, IL | Computer and Electronic Product Manufacturing334418 | — | ◇ UNVERIFIED |
| MCMueller CO | Decatur, IL | Primary Metal Manufacturing331529 | — | ◇ UNVERIFIED |
| MCMueller CO | Decatur, IL | Primary Metal Manufacturing331511 | — | ◇ UNVERIFIED |
| VPVcna Prairie INC Yard 1025 | Decatur, IL | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| Archer Daniels Midland Company | Decatur, IL | Food Manufacturing311221 | — | ◐ LIKELY ACTIVE |
| HPHuston Patterson | Decatur, IL | Printing and Related Support Activities323111 | — | ◐ LIKELY ACTIVE |
| WWyckles | Decatur, IL | Chemical Manufacturing325412 | — | ◐ LIKELY ACTIVE |
| DCDecatur Construction Services INC | Decatur, IL | Nonmetallic Mineral Product Manufacturing327320 | — | ◐ LIKELY ACTIVE |
| DCDunn CO - Division of Tyrolt INC | Decatur, IL | Petroleum and Coal Products Manufacturing324121 | — | ◐ LIKELY ACTIVE |
| EREvans Recycling | Decatur, IL | Miscellaneous Manufacturing339999 | — | ◐ LIKELY ACTIVE |
| GWGraham Welding | Decatur, IL | Fabricated Metal Product Manufacturing332999 | — | ◐ LIKELY ACTIVE |
| HMHeidelberg Materials - Decatur Yard | Decatur, IL | Miscellaneous Manufacturing339999 | — | ◐ LIKELY ACTIVE |
| TSTcr Systems LLC | Decatur, IL | Fabricated Metal Product Manufacturing332322 | — | ◐ LIKELY ACTIVE |
| ADAdm Development Products | Decatur, IL | Chemical Manufacturing325199 | — | ◇ UNVERIFIED |
| ARAdm Rail Car Repair Facility | Decatur, IL | Transportation Equipment Manufacturing336510 | — | ◇ UNVERIFIED |
| AWAdm West Complex-stratas Foods | Decatur, IL | Food Manufacturing311222 | — | ◇ UNVERIFIED |
| AAAdvantage Automation Midwest INC | Decatur, IL | Primary Metal Manufacturing331513 | — | ◇ UNVERIFIED |
| Archer Daniels Midland CO | Decatur, IL | Food Manufacturing311222 | — | ◇ UNVERIFIED |
| ADArcher Daniels Midwest | Decatur, IL | Food Manufacturing311119 | — | ◇ UNVERIFIED |
| BNBridgestone/firestone North America Tire LLC | Decatur, IL | Plastics and Rubber Products Manufacturing326211 | — | ◇ UNVERIFIED |
| CCargill-decatur | Decatur, IL | Food Manufacturing311999 | — | ◇ UNVERIFIED |
| CCCrown Cork & Seal CO INC | Warrensburg, IL | Fabricated Metal Product Manufacturing332431 | — | ◇ UNVERIFIED |
| DADecatur Autobody | Decatur, IL | Miscellaneous Manufacturing339999 | — | ◇ UNVERIFIED |
| DCDecatur Construction Services INC | Decatur, IL | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| DPDecatur Plating & Mfg CO | Decatur, IL | Fabricated Metal Product Manufacturing332813 | — | ◇ UNVERIFIED |
| DMDg Manufacturing INC | Mount Zion, IL | Miscellaneous Manufacturing339999 | — | ◇ UNVERIFIED |
| EBEpl Bio-analytical Services INC | Niantic, IL | Miscellaneous Manufacturing339999 | — | ◇ UNVERIFIED |
| GCGrigoleit CO | Decatur, IL | Printing and Related Support Activities323113 | — | ◇ UNVERIFIED |
| HCHome City Ice CO | Decatur, IL | Beverage and Tobacco Product Manufacturing312113 | — | ◇ UNVERIFIED |
| IVIllinois Valley Paving CO | Elwin, IL | Petroleum and Coal Products Manufacturing324121 | — | ◇ UNVERIFIED |
| IDIntermet Decatur Foundry | Decatur, IL | Primary Metal Manufacturing331511 | — | ◇ UNVERIFIED |
| KTKeen Transport INC | Decatur, IL | Miscellaneous Manufacturing339999 | — | ◇ UNVERIFIED |
| MMMason Mfg INC | Decatur, IL | Miscellaneous Manufacturing339999 | — | ◇ UNVERIFIED |
| MPMeda Pharmaceuticals INC | Decatur, IL | Chemical Manufacturing325412 | — | ◇ UNVERIFIED |
| NTNsr Technologies INC | Decatur, IL | Chemical Manufacturing325130 | — | ◇ UNVERIFIED |
| OMOrnamental Metalworks INC | Decatur, IL | Fabricated Metal Product Manufacturing332312 | — | ◇ UNVERIFIED |
