| AFAdvanced Filtration Systems INC | Champaign | IL | Transportation Equipment Manufacturing336390 | 100-499 | ◐ LIKELY ACTIVE |
| AMAmerican Metal Fiber INC | Lake Bluff | IL | Fabricated Metal Product Manufacturing332999 | 20-99 | ◐ LIKELY ACTIVE |
| ABAnchor Brake Shoe CO | West Chicago | IL | Primary Metal Manufacturing331511 | 20-99 | ◐ LIKELY ACTIVE |
| CWCardwell Westinghouse | Chicago | IL | Transportation Equipment Manufacturing336510 | 20-99 | ◐ LIKELY ACTIVE |
| EIElgin Industries | Elgin | IL | Food Manufacturing311911 | 20-99 | ◐ LIKELY ACTIVE |
| FCFlex-n-gate CORP | Urbana | IL | Transportation Equipment Manufacturing336390 | 100-499 | ◐ LIKELY ACTIVE |
| HEHella Electronics CORP | Flora | IL | Transportation Equipment Manufacturing336320 | 100-499 | ◐ LIKELY ACTIVE |
| MCMetform CORP | Savanna | IL | Fabricated Metal Product Manufacturing332111 | — | ◐ LIKELY ACTIVE |
| PHP & H Mfg CO | Shelbyville | IL | Machinery Manufacturing333111 | 100-499 | ◐ LIKELY ACTIVE |
Progress Rail Locomotive INC. | Mccook | IL | Machinery Manufacturing333618 | — | ◐ LIKELY ACTIVE |
| TCThyssenkrupp Crankshaft CO | Danville | IL | Fabricated Metal Product Manufacturing332111 | 20-99 | ◐ LIKELY ACTIVE |
| TATower Automotive Operations USA I LLC | Chicago | IL | Fabricated Metal Product Manufacturing332812 | 100-499 | ◐ LIKELY ACTIVE |
| UMUnity Manufacturing CO | Chicago | IL | Electrical Equipment, Appliance & Component Manufacturing335110 | 20-99 | ◐ LIKELY ACTIVE |
| BIBonnell Ind INC | Dixon | IL | Transportation Equipment Manufacturing336120 | 100-499 | ◐ LIKELY ACTIVE |
| DMDynamic Manufacturing INC | Hillside | IL | Transportation Equipment Manufacturing336350 | 500+ | ◐ LIKELY ACTIVE |
| ECEakas CORP | Peru | IL | Plastics and Rubber Products Manufacturing326199 | 100-499 | ◐ LIKELY ACTIVE |
| HBHendrickson Bumper & Trim | Crest Hill | IL | Transportation Equipment Manufacturing336330 | — | ◐ LIKELY ACTIVE |
| AGAIRCRAFT GEAR CORPORATION - Plant 1 | Loves Park | IL | Transportation Equipment Manufacturing336390 | 20-99 | ◐ LIKELY ACTIVE |
| ANAntolin Nashville | Nashville | IL | Transportation Equipment Manufacturing336390 | — | ◐ LIKELY ACTIVE |
| BTBorgwarner Transmission Products LLC | Bellwood | IL | Transportation Equipment Manufacturing336350 | — | ◐ LIKELY ACTIVE |
| CICentral Illinois Manufacturing Co, Cim-Tek Filtration | Bement | IL | Transportation Equipment Manufacturing336390 | 20-99 | ◐ LIKELY ACTIVE |
| CEChemring Energetic Devices INC | Downers Grove | IL | Transportation Equipment Manufacturing336413 | — | ◐ LIKELY ACTIVE |
| DMDanville Metal Stamping CO | Danville | IL | Transportation Equipment Manufacturing336412 | 100-499 | ◐ LIKELY ACTIVE |
| EIElc Industries CORP. | Aurora | IL | Transportation Equipment Manufacturing336320 | 20-99 | ◐ LIKELY ACTIVE |
| GWGuardian West | Urbana | IL | Transportation Equipment Manufacturing336370 | 100-499 | ◐ LIKELY ACTIVE |
| HAHeligear Acquisition CO Dbanorthstar Aerospace (chicago) INC | Bedford Park | IL | Transportation Equipment Manufacturing336413 | — | ◐ LIKELY ACTIVE |
| MDMidland Divison of American Industries | Jerseyville | IL | Transportation Equipment Manufacturing336510 | 20-99 | ◐ LIKELY ACTIVE |
| MTMonroe Truck Equipment | Joliet | IL | Transportation Equipment Manufacturing336211 | 20-99 | ◐ LIKELY ACTIVE |
| NANorth American Lighting INC | Paris | IL | Transportation Equipment Manufacturing336320 | — | ◐ LIKELY ACTIVE |
| NANorth American Lighting INC | Salem | IL | Transportation Equipment Manufacturing336320 | — | ◐ LIKELY ACTIVE |
Progress Rail Locomotive INC. | Mc Cook | IL | Transportation Equipment Manufacturing336510 | — | ◐ LIKELY ACTIVE |
| RPRockford Powertrain INC | Loves Park | IL | Transportation Equipment Manufacturing336350 | 100-499 | ◐ LIKELY ACTIVE |
| WIWoodward INC | Loves Park | IL | Nonmetallic Mineral Product Manufacturing327410 | — | ◐ LIKELY ACTIVE |
| WMWoodward Mpc INC | Niles | IL | Fabricated Metal Product Manufacturing332813 | 500+ | ◐ LIKELY ACTIVE |
| CLChampion Laboratories INC | Albion | IL | Transportation Equipment Manufacturing336390 | — | ◐ LIKELY ACTIVE |
| DMDynamic Manufacturing CO | Melrose Park | IL | Transportation Equipment Manufacturing336350 | — | ◐ LIKELY ACTIVE |
| FMFord Motor CO | Chicago Heights | IL | Fabricated Metal Product Manufacturing332111 | — | ◐ LIKELY ACTIVE |
| FMFord Motor CO. - Chgo Assembly Plant | Chicago | IL | Transportation Equipment Manufacturing336110 | — | ◐ LIKELY ACTIVE |
| GDGreat Dane | Kewanee | IL | Transportation Equipment Manufacturing336212 | — | ◐ LIKELY ACTIVE |
| ITIhi Turbo America | Shelbyville | IL | Transportation Equipment Manufacturing336390 | 100-499 | ◐ LIKELY ACTIVE |
| MMMitsubishi Motors North America INC | Normal | IL | Transportation Equipment Manufacturing336110 | — | ◐ LIKELY ACTIVE |
| NANorth American Lighting INC | Flora | IL | Transportation Equipment Manufacturing336320 | — | ◐ LIKELY ACTIVE |
| EWEagle Wings Industries INC | Rantoul | IL | Transportation Equipment Manufacturing336370 | 100-499 | ◐ LIKELY ACTIVE |
Kranze Technology Solutions INC | Des Plaines | IL | Transportation Equipment Manufacturing336413 | — | ◐ LIKELY ACTIVE |
| KTKreis Tool & Manufacturing Co., INC. | Elgin | IL | Transportation Equipment Manufacturing336413 | — | ◐ LIKELY ACTIVE |
| TUToyo USA Manufacturing INC | Bloomington | IL | Transportation Equipment Manufacturing336350 | 20-99 | ◐ LIKELY ACTIVE |
Triple L Group, LLC | Kewanee | IL | Transportation Equipment Manufacturing336212 | — | ◐ LIKELY ACTIVE |
Valqari LLC | Lombard | IL | Transportation Equipment Manufacturing336411 | — | ◐ LIKELY ACTIVE |
| LCLiberty Coach INC | North Chicago | IL | Transportation Equipment Manufacturing336120 | 20-99 | ◐ LIKELY ACTIVE |
| ATAcbl Transportation Svc LLC | Cairo | IL | Transportation Equipment Manufacturing336611 | — | ◐ LIKELY ACTIVE |