| IMInterlake Mecalux INC | Pontiac, IL | Fabricated Metal Product Manufacturing332312 | 100–499 | ● ACTIVE |
U.s. Co-tronics, INC. | Fairbury, IL | Computer and Electronic Product Manufacturing334416 | — | ● ACTIVE |
Vactor Manufacturing, LLC | Streator, IL | Transportation Equipment Manufacturing336211 | 500+ | ● ACTIVE |
Slagel Manufacturing, INC | Forrest, IL | Fabricated Metal Product Manufacturing332322 | — | ● ACTIVE |
Transco Products INC. | Streator, IL | Fabricated Metal Product Manufacturing332322 | — | ● ACTIVE |
| ALAnthony Liftgates INC | Pontiac, IL | Fabricated Metal Product Manufacturing332312 | 20–99 | ◐ LIKELY ACTIVE |
| PTPtc Tubular Products LLC | Fairbury, IL | Primary Metal Manufacturing331210 | 20–99 | ◐ LIKELY ACTIVE |
New Lenox Machine Co., INC. | Dwight, IL | Fabricated Metal Product Manufacturing332994 | — | ◐ LIKELY ACTIVE |
| QCQuanex CORP | Chatsworth, IL | Fabricated Metal Product Manufacturing332114 | — | ◐ LIKELY ACTIVE |
| VVactor | Streator, IL | Machinery Manufacturing333924 | — | ◇ UNVERIFIED |
| ZFZutat Feed Solutions LLC | Chatsworth, IL | Food Manufacturing311111 | 20–99 | ◐ LIKELY ACTIVE |
| AIAlp INC | Fairbury, IL | Plastics and Rubber Products Manufacturing326140 | — | ◐ LIKELY ACTIVE |
| CRChief Redi-mix INC | Pontiac, IL | Nonmetallic Mineral Product Manufacturing327320 | — | ◐ LIKELY ACTIVE |
| CICaterpillar INC | Pontiac, IL | Machinery Manufacturing333618 | — | ◐ LIKELY ACTIVE |
| SSSelig Sealing Products INC | Forrest, IL | Miscellaneous Manufacturing339991 | — | ◐ LIKELY ACTIVE |
| CTCaterpillar Tractor CO | Pontiac, IL | Machinery Manufacturing333120 | — | ◇ UNVERIFIED |
| DSDavid Simmons | Dwight, IL | Miscellaneous Manufacturing339999 | — | ◇ UNVERIFIED |
| DTDiller Tile Company INC. | Chatsworth, IL | Plastics and Rubber Products Manufacturing326122 | — | ◇ UNVERIFIED |
| ISIr Systems INC | Dwight, IL | Chemical Manufacturing325910 | — | ◇ UNVERIFIED |
| KVKankakee Valley Const CO INC | Streator, IL | Petroleum and Coal Products Manufacturing324121 | — | ◇ UNVERIFIED |
| KBKen Bush | Dwight, IL | Miscellaneous Manufacturing339999 | — | ◇ UNVERIFIED |
| LCLsc Communications Pontiac | Pontiac, IL | Printing and Related Support Activities323111 | — | ◇ UNVERIFIED |
| MLMatt Leigh | Pontiac, IL | Miscellaneous Manufacturing339999 | — | ◇ UNVERIFIED |
| MSMycogen Seeds | Pontiac, IL | Food Manufacturing311119 | — | ◇ UNVERIFIED |
| OSOsf St James Hospital | Pontiac, IL | Miscellaneous Manufacturing339999 | — | ◇ UNVERIFIED |
| PTPlymouth Tube CO | Streator, IL | Primary Metal Manufacturing331210 | — | ◇ UNVERIFIED |
| PEPrestress Engineering CO | Blackstone, IL | Nonmetallic Mineral Product Manufacturing327390 | — | ◇ UNVERIFIED |
| RRR R Donnelley & Sons Company | Dwight, IL | Printing and Related Support Activities323110 | — | ◇ UNVERIFIED |
| SCScattered Corportaion | Pontiac, IL | Miscellaneous Manufacturing339999 | — | ◇ UNVERIFIED |
| SPSheridan - Pontiac | Pontiac, IL | Printing and Related Support Activities323111 | — | ◇ UNVERIFIED |
| SGStuart Gessner | Streator, IL | Miscellaneous Manufacturing339999 | — | ◇ UNVERIFIED |
| ASAlloy Specialties - Blackstone | Blackstone, IL | Fabricated Metal Product Manufacturing332322 | 20–99 | ◐ LIKELY ACTIVE |
| DSDave's Supermarket | Fairbury, IL | — | — | ◐ LIKELY ACTIVE |
| JPJohnson Press of America, Inc. | Pontiac, IL | Printing and Related Support Activities323111 | 20–99 | ◐ LIKELY ACTIVE |
| QHQuanex Homeshield LLC-Chatsworth | Chatsworth, IL | Fabricated Metal Product Manufacturing332321 | 20–99 | ◐ LIKELY ACTIVE |
| SFSlagel Family Meats, Inc. | Forrest, IL | Food Manufacturing311612 | — | ◐ LIKELY ACTIVE |
| SSSlagel Slaughter | Forrest, IL | Food Manufacturing311611 | — | ◐ LIKELY ACTIVE |
| SFSteidinger Foods | Fairbury, IL | Food Manufacturing311612 | — | ◐ LIKELY ACTIVE |
| SMSteidinger Meat Processing | Fairbury, IL | Food Manufacturing311612 | — | ◐ LIKELY ACTIVE |
| TLTechMetals, LLC | Fairbury, IL | Fabricated Metal Product Manufacturing332721 | 20–99 | ◐ LIKELY ACTIVE |
| UMUnpossible Mead INC. | Dwight, IL | Beverage and Tobacco Product Manufacturing312130 | — | ◐ LIKELY ACTIVE |
| VRVerona Rubber Works, INC | Blackstone, IL | Plastics and Rubber Products Manufacturing326291 | — | ◐ LIKELY ACTIVE |
| WPWabash Poultry Processing | Forrest, IL | Food Manufacturing311615 | — | ◐ LIKELY ACTIVE |
| SIStoller International INC | Pontiac, IL | Machinery Manufacturing333111 | — | ◐ LIKELY ACTIVE |
| APAce Plastic, INC. | Chatsworth, IL | Chemical Manufacturing325991 | — | ◇ UNVERIFIED |
| CECaterpillar Engine Systems, INC. | Pontiac, IL | Machinery Manufacturing333618 | — | ◇ UNVERIFIED |
| DMDuffy-pils Memorial Home | Fairbury, IL | Miscellaneous Manufacturing339999 | — | ◇ UNVERIFIED |
| EEEmerald Ethanol LLC | Streator, IL | Chemical Manufacturing325193 | — | ◇ UNVERIFIED |
| FRForrest Redi-mix INC | Forrest, IL | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| GSGood Samaritan Nursing Home | Pontiac, IL | Miscellaneous Manufacturing339999 | — | ◇ UNVERIFIED |