| FSFlexible Steel Lacing Company | Woodridge | — | ◇ UNVERIFIED |
| FLFlex LTD. | Buffalo Grove | — | ◇ UNVERIFIED |
| FPFlow Products, INC. | Chicago | — | ◇ UNVERIFIED |
| FIFmi Industries INC | Countryside | — | ◇ UNVERIFIED |
| FBForrest Bradshaw Holdings LLC | Franklin Park | — | ◇ UNVERIFIED |
| FAForte Automation Systems, INC. | Rockford | — | ◇ UNVERIFIED |
| GIG&d Integrated Manufacturing Logistics, INC. | Morton | — | ◇ UNVERIFIED |
| GDG & D Integrated Services, INC. | Peoria | — | ◇ UNVERIFIED |
| GMGeneral Manufacturing LLC Dba Nb Finishing Company | Melrose Park | — | ◇ UNVERIFIED |
| GIGetz Industrial Cleaning, INC. | Washington | — | ◇ UNVERIFIED |
| GEGingrich Enterprises, INC. | Roanoke | — | ◇ UNVERIFIED |
| GTGlenwood Tool & Mold, INC. | Bartlett | — | ◇ UNVERIFIED |
| GLGreen Land 2, LLC | Batavia | — | ◇ UNVERIFIED |
 Green Valley Manufacturing of Illinois, INC. | Mount Zion | — | ◇ UNVERIFIED |
 Handling Systems INC. | La Grange | — | ◇ UNVERIFIED |
| HMHarig Mfg | Niles | — | ◇ UNVERIFIED |
| HEHaumiller Engineering Company | South Elgin | — | ◇ UNVERIFIED |
| HCHelena Chemical Co.- Orion Illinois Facility | Orion | — | ◇ UNVERIFIED |
| HTHelm Tool Company Incorporated | Elk Grove Village | — | ◇ UNVERIFIED |
| HMHeritage Mold, Incorporated | Rockford | — | ◇ UNVERIFIED |
| HRHf Rubber Machinery, INC. | Mount Vernon | — | ◇ UNVERIFIED |
| HWHls Wheeling, LLC | Wheeling | — | ◇ UNVERIFIED |
| HIHoneywell International | Cicero | — | ◇ UNVERIFIED |
| HAHonsa Acquisition, LLC | Milan | — | ◇ UNVERIFIED |
| HAHonsa Acquisition, LLC | Milan | — | ◇ UNVERIFIED |
| ICIcp Construction-chicago | Chicago | — | ◇ UNVERIFIED |
| IHIJE Holdings LLC | Huntley | — | ◇ UNVERIFIED |
| IBIllinois Basin Supply, LLC | Crossville | — | ◇ UNVERIFIED |
| IGIllinois Grain & Seed Equipment | Cissna Park | — | ◇ UNVERIFIED |
| IPImi Precision Engineering | Machesney Park | — | ◇ UNVERIFIED |
| IMIndustrial Molds, Inc. | Rockford | — | ◇ UNVERIFIED |
| ICIngersol Cutting Tool CO Member of the Imc Group | Loves Park | — | ◇ UNVERIFIED |
| IMInnovative Mold Components | Lake in the Hills | — | ◇ UNVERIFIED |
| IAIntegral Automation, INC | Burr Ridge | — | ◇ UNVERIFIED |
| IPIntelligent Processes and Automation, Inc. | Oakbrook Terrace | — | ◇ UNVERIFIED |
| IPInternational Paper Company | Des Plaines | — | ◇ UNVERIFIED |
| IItw | Glenview | — | ◇ UNVERIFIED |
| IAItwtech and Itw Linx | Carol Stream | — | ◇ UNVERIFIED |
| JAJason Anderson | Galva | — | ◇ UNVERIFIED |
| JFJensen Fabrication, LLC | Alton | — | ◇ UNVERIFIED |
| JRJ&J Rail Sales, Inc. | Rochelle | — | ◇ UNVERIFIED |
| JDJohn Deere Company | Milan | — | ◇ UNVERIFIED |
| JDJohn Deere Product Development Center | Carbon Cliff | — | ◇ UNVERIFIED |
| JKJohn King Usa, INC. | East Peoria | — | ◇ UNVERIFIED |
| JCJohnson Controls, INC. | Chicago | — | ◇ UNVERIFIED |
| JSJohnstone Supply INC | Joliet | — | ◇ UNVERIFIED |
| JAJosefek Acquisition Corp | Glendale Heights | — | ◇ UNVERIFIED |
| JAJp America, INC. | Hampshire | — | ◇ UNVERIFIED |
| JMJsp Mold LLC | Milledgeville | — | ◇ UNVERIFIED |
| KTKeene Technologies INC | South Beloit | — | ◇ UNVERIFIED |
