| AMAcoustic Medsystems INC | Savoy, IL | Computer and Electronic Product Manufacturing334510 | — | ◐ LIKELY ACTIVE |
| ACAltamont Company Engraving | Rantoul, IL | Wood Product Manufacturing321999 | 1–19 | ◐ LIKELY ACTIVE |
| BEB. E. C. Mechanical, Inc. | Ogden, IL | Fabricated Metal Product Manufacturing332322 | 1–19 | ◐ LIKELY ACTIVE |
| BLBiogreeninnovate LLC | Champaign, IL | Chemical Manufacturing325315 | — | ◐ LIKELY ACTIVE |
| BEBlue Ethiopian Cuisine & Cafe | Champaign, IL | Beverage and Tobacco Product Manufacturing312130 | — | ◐ LIKELY ACTIVE |
| CICentral Illinois Manufacturing Co, Cim-Tek Filtration | Bement, IL | Transportation Equipment Manufacturing336390 | 20–99 | ◐ LIKELY ACTIVE |
| CIChampaign - Interstate | Champaign, IL | Chemical Manufacturing325120 | 20–99 | ◐ LIKELY ACTIVE |
| CMChampaign - Mattis | Champaign, IL | Chemical Manufacturing325120 | 20–99 | ◐ LIKELY ACTIVE |
| CUCKS Urbana | Urbana, IL | Plastics and Rubber Products Manufacturing326160 | 20–99 | ◐ LIKELY ACTIVE |
| DNDomowe Nalewki INC | Piper City, IL | Beverage and Tobacco Product Manufacturing312140 | — | ◐ LIKELY ACTIVE |
| FRFlex-N-Gate Rantoul LLC | Rantoul, IL | Transportation Equipment Manufacturing336390 | 100–499 | ◐ LIKELY ACTIVE |
| GMGreen Meadows Foods, Inc | Paxton, IL | Food Manufacturing311612 | — | ◐ LIKELY ACTIVE |
H3 Manufacturing Group - Champaign, IL. Location | Champaign, IL | Fabricated Metal Product Manufacturing332710 | 20–99 | ◐ LIKELY ACTIVE |
H3 Manufacturing Group - Fisher, IL. Location | Fisher, IL | Fabricated Metal Product Manufacturing332710 | 20–99 | ◐ LIKELY ACTIVE |
| HCHarris Companies, Inc. | Atwood, IL | Machinery Manufacturing333921 | 20–99 | ◐ LIKELY ACTIVE |
| HFHudson Farm Distilling Company, LLC | Urbana, IL | Beverage and Tobacco Product Manufacturing312140 | — | ◐ LIKELY ACTIVE |
| IIIllini Institutional Foods, Inc. | Rantoul, IL | Food Manufacturing311612 | — | ◐ LIKELY ACTIVE |
| LLLady Lasonia LLC | Champaign, IL | Chemical Manufacturing325620 | — | ◐ LIKELY ACTIVE |
| MLMattertex LLC | Savoy, IL | Electrical Equipment, Appliance & Component Manufacturing335910 | — | ◐ LIKELY ACTIVE |
| MPMaverick Pipe/Zekelman Industries-Rantoul | Rantoul, IL | Plastics and Rubber Products Manufacturing326122 | 20–99 | ◐ LIKELY ACTIVE |
| MSMeat Science Laboratory, Univ. of IL | Urbana, IL | Food Manufacturing311611 | — | ◐ LIKELY ACTIVE |
| MSMotorola Solutions Inc | Champaign, IL | Computer and Electronic Product Manufacturing334220 | 20–99 | ◐ LIKELY ACTIVE |
| NANorth America Rantoul | Rantoul, IL | Wood Product Manufacturing321911 | 100–499 | ◐ LIKELY ACTIVE |
| OSObrien Scientific Glass Blowing LLC | Monticello, IL | Nonmetallic Mineral Product Manufacturing327212 | — | ◐ LIKELY ACTIVE |
| PCPepsi-Cola Champaign-Urbana Bottling Co. | Champaign, IL | Beverage and Tobacco Product Manufacturing312111 | 20–99 | ◐ LIKELY ACTIVE |
| PTPowerbox Technology INC | Champaign, IL | Electrical Equipment, Appliance & Component Manufacturing335999 | — | ◐ LIKELY ACTIVE |
| RRantoul | Rantoul, IL | Fabricated Metal Product Manufacturing332439 | 20–99 | ◐ LIKELY ACTIVE |
| RFRantoul Foods LLC dba Agar Foods LLC | Rantoul, IL | Food Manufacturing311611 | — | ◐ LIKELY ACTIVE |
| RIRantoul Investments | Rantoul, IL | — | — | ◐ LIKELY ACTIVE |
| S7Store 7 | Champaign, IL | Printing and Related Support Activities323111 | 1–19 | ◐ LIKELY ACTIVE |
| TBThe Blind Pig Brewery | Champaign, IL | Beverage and Tobacco Product Manufacturing312130 | — | ◐ LIKELY ACTIVE |
| TBThe Blind Pig Company | Champaign, IL | Beverage and Tobacco Product Manufacturing312130 | — | ◐ LIKELY ACTIVE |
| UUrbana | Urbana, IL | Food Manufacturing311991 | 1–19 | ◐ LIKELY ACTIVE |
| VMValent Mid-West Agricultural Research Center (MWARC) | Seymour, IL | Chemical Manufacturing325320 | 1–19 | ◐ LIKELY ACTIVE |
| WOWarbler of Illinois CO | Champaign, IL | Computer and Electronic Product Manufacturing334519 | — | ◐ LIKELY ACTIVE |
| WCWyldewood Cellars | Saint Joseph, IL | Beverage and Tobacco Product Manufacturing312130 | — | ◐ LIKELY ACTIVE |
| 3C35elements CORP | Champaign, IL | Computer and Electronic Product Manufacturing334413 | — | ▲ REPORTED CLOSED |
| SCStaley Concrete CO INC | Champaign, IL | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| 4N402 N Maple St LLC | Urbana, IL | Miscellaneous Manufacturing339992 | — | ◇ UNVERIFIED |
| AMAadvanced Marketing Solutions, INC. | Ogden, IL | Miscellaneous Manufacturing339999 | — | ◇ UNVERIFIED |
| AMAdam Mohr | Sadorus, IL | Miscellaneous Manufacturing339999 | — | ◇ UNVERIFIED |
| AIAmeren Illinois | Champaign, IL | Miscellaneous Manufacturing339999 | — | ◇ UNVERIFIED |
| ADAmerican Dowell Sign Company, Incorporated | Champaign, IL | Miscellaneous Manufacturing339950 | — | ◇ UNVERIFIED |
| ALAmerican Legend Motorcycle Trailers | Mahomet, IL | Miscellaneous Manufacturing339999 | — | ◇ UNVERIFIED |
| ASAmerican Stores Properties INC | Urbana, IL | Miscellaneous Manufacturing339999 | — | ◇ UNVERIFIED |
| ASAnderson Steve | Mahomet, IL | Miscellaneous Manufacturing339999 | — | ◇ UNVERIFIED |
| ASAnother Sweet Event, INC. | Champaign, IL | Food Manufacturing311811 | — | ◇ UNVERIFIED |
Archer Daniels Midland CO | Champaign, IL | Food Manufacturing311222 | — | ◇ UNVERIFIED |
| AIAtsp Innovations, LLC | Champaign, IL | Chemical Manufacturing325211 | — | ◇ UNVERIFIED |
| ABAugust Berning | Homer, IL | Miscellaneous Manufacturing339999 | — | ◇ UNVERIFIED |