| CCClark County Ready Mix | Martinsville | IL | Nonmetallic Mineral Product Manufacturing327320 | 1-19 | ◐ LIKELY ACTIVE |
| CPCoilcraft, Princeton | Princeton | IL | Computer and Electronic Product Manufacturing334416 | 1-19 | ◐ LIKELY ACTIVE |
| CCCold Chain Technologies- Elgin | Elgin | IL | Plastics and Rubber Products Manufacturing326150 | 1-19 | ◐ LIKELY ACTIVE |
| CMCorrigan Moving Systems | Hanover Park | IL | Transportation Equipment Manufacturing336212 | 1-19 | ◐ LIKELY ACTIVE |
Crane 1 Services - Chicago | Merriville | IL | Machinery Manufacturing333923 | 1-19 | ◐ LIKELY ACTIVE |
| DIDana Incorporated | Lisle | IL | Transportation Equipment Manufacturing336350 | 1-19 | ◐ LIKELY ACTIVE |
| DIDanvers IL Trackwork | Danvers | IL | Transportation Equipment Manufacturing336510 | 1-19 | ◐ LIKELY ACTIVE |
| DSDIS-TRAN Steel - Illinois | Chicago Heights | IL | Fabricated Metal Product Manufacturing332312 | 1-19 | ◐ LIKELY ACTIVE |
| DCDonaldson Company Inc.- BOFA Americas | Staunton | IL | Machinery Manufacturing333413 | 1-19 | ◐ LIKELY ACTIVE |
| DMDonson Machine Orland Park | Orland Park | IL | Miscellaneous Manufacturing339112 | 1-19 | ◐ LIKELY ACTIVE |
| DBDPH Biologicals LLC | Princeton | IL | Chemical Manufacturing325311 | 1-19 | ◐ LIKELY ACTIVE |
| DQDu Quoin Reels - A892 | Du Quoin | IL | Wood Product Manufacturing321999 | 1-19 | ◐ LIKELY ACTIVE |
| EFEagle Fabrication, LLC | Sauget | IL | Transportation Equipment Manufacturing336611 | 1-19 | ◐ LIKELY ACTIVE |
| EPEast Peoria, IL | East Peoria | IL | Wood Product Manufacturing321920 | 1-19 | ◐ LIKELY ACTIVE |
Eclipse Aerospace Inc ARR | Sugar Grove | IL | Transportation Equipment Manufacturing336411 | 1-19 | ◐ LIKELY ACTIVE |
| EEd12 | Northbrook | IL | Plastics and Rubber Products Manufacturing326113 | 1-19 | ◐ LIKELY ACTIVE |
| EIElastec, Inc. 926 | Carmi | IL | Machinery Manufacturing333318 | 1-19 | ◐ LIKELY ACTIVE |
| EElmhurst | Elmhurst | IL | Miscellaneous Manufacturing339113 | 1-19 | ◐ LIKELY ACTIVE |
| ECEngineered Custom Coatings, LLC (IL) | Sugar Grove | IL | Chemical Manufacturing325510 | 1-19 | ◐ LIKELY ACTIVE |
| ELEnvirOx, LLC 1830 Voorhees | Danville | IL | Chemical Manufacturing325612 | 1-19 | ◐ LIKELY ACTIVE |
Fair-Rite Products Corp. - Flat Rock | Flat Rock | IL | Nonmetallic Mineral Product Manufacturing327110 | 1-19 | ◐ LIKELY ACTIVE |
| FRFCT Rockford | Rockford | IL | Fabricated Metal Product Manufacturing332812 | 1-19 | ◐ LIKELY ACTIVE |
| FPFernway Prairie State LLC | Rockford | IL | Chemical Manufacturing325411 | 1-19 | ◐ LIKELY ACTIVE |
| FIFinishWorks (Arthur, IL) | Arthur | IL | Chemical Manufacturing325510 | 1-19 | ◐ LIKELY ACTIVE |
| FPFranklin Park Office | Franklin Park | IL | Computer and Electronic Product Manufacturing334516 | 1-19 | ◐ LIKELY ACTIVE |
| FPFreeport Public Library - City of Freeport | Freeport | IL | Furniture and Related Product Manufacturing337127 | 1-19 | ◐ LIKELY ACTIVE |
| FKFresenius Kabi USA LLC Cornell Ave | Melrose Park | IL | Chemical Manufacturing325412 | 1-19 | ◐ LIKELY ACTIVE |
| FFFreudenberg Filtration Technologies - Best Air (Huntley) | Huntley | IL | Machinery Manufacturing333413 | 1-19 | ◐ LIKELY ACTIVE |
| FCFutaba Corporation of America Corporate | Hoffman Estates IL | IL | Computer and Electronic Product Manufacturing334418 | 1-19 | ◐ LIKELY ACTIVE |
| GRGalesburg Recycling | Galesburg | IL | Transportation Equipment Manufacturing336510 | 1-19 | ◐ LIKELY ACTIVE |
| GGeneva | Geneva | IL | Paper Manufacturing322220 | 1-19 | ◐ LIKELY ACTIVE |
| GLGeneva Lager Works | Geneva | IL | Beverage and Tobacco Product Manufacturing312120 | 1-19 | ◐ LIKELY ACTIVE |
| GMGold Medal Products Company - Galesburg | Galesburg | IL | Machinery Manufacturing333241 | 1-19 | ◐ LIKELY ACTIVE |
| GDGonnella Distribution Center | Schaumburg | IL | Food Manufacturing311812 | 1-19 | ◐ LIKELY ACTIVE |
| G8Gps 87th | Chicago | IL | Food Manufacturing311340 | 1-19 | ◐ LIKELY ACTIVE |
| GWGps Woodfield | Schaumburg | IL | Food Manufacturing311340 | 1-19 | ◐ LIKELY ACTIVE |
| GRGreenville Ready Mix | Greenville | IL | Nonmetallic Mineral Product Manufacturing327320 | 1-19 | ◐ LIKELY ACTIVE |
| GCGVH Chicago | Chicago | IL | Wood Product Manufacturing321911 | 1-19 | ◐ LIKELY ACTIVE |
| HAHabasit America Chicago | Addison | IL | Plastics and Rubber Products Manufacturing326220 | 1-19 | ◐ LIKELY ACTIVE |
| HMHeidelberg Materials-Lockport Shop Maintenance Facility | Romeoville | IL | Fabricated Metal Product Manufacturing332710 | 1-19 | ◐ LIKELY ACTIVE |
| HMHexagon Manufacturing Intelligence INC Elgin IL | Elgin | IL | Computer and Electronic Product Manufacturing334513 | 1-19 | ◐ LIKELY ACTIVE |
| HRHillsboro Ready Mix | Hillsboro | IL | Nonmetallic Mineral Product Manufacturing327320 | 1-19 | ◐ LIKELY ACTIVE |
| HPH&K Perforating LLC | Chicago | IL | Fabricated Metal Product Manufacturing332119 | 1-19 | ◐ LIKELY ACTIVE |
| HEHookset Enterprises LLC | Wheeling | IL | Plastics and Rubber Products Manufacturing326199 | 1-19 | ◐ LIKELY ACTIVE |
| HUHormann USA LLC - Chicago | Montgomery | IL | Fabricated Metal Product Manufacturing332322 | 1-19 | ◐ LIKELY ACTIVE |
| HSHorsburgh & Scott- Roscoe | Roscoe | IL | Machinery Manufacturing333612 | 1-19 | ◐ LIKELY ACTIVE |
| HHq | Peoria | IL | Miscellaneous Manufacturing339116 | 1-19 | ◐ LIKELY ACTIVE |
| HLHueber LLC Creston Facility | Creston | IL | Food Manufacturing311119 | 1-19 | ◐ LIKELY ACTIVE |
| HPHyde Park | Chicago | IL | Food Manufacturing311340 | 1-19 | ◐ LIKELY ACTIVE |
| HMHydro-Gear, Mattoon | Mattoon | IL | Machinery Manufacturing333996 | 1-19 | ◐ LIKELY ACTIVE |