| PCParsons Company Inc Goodfield | Goodfield | IL | Fabricated Metal Product Manufacturing332999 | 1-19 | ◐ LIKELY ACTIVE |
| PTPeoria Technology Center | Peoria | IL | Miscellaneous Manufacturing339116 | 1-19 | ◐ LIKELY ACTIVE |
| PGPhoenix Global, LLC-Riverdale | Riverdale | IL | Primary Metal Manufacturing331110 | 1-19 | ◐ LIKELY ACTIVE |
| P2Plant 2 | Dixon | IL | Fabricated Metal Product Manufacturing332111 | 1-19 | ◐ LIKELY ACTIVE |
| PDPrefinished Door Works | Carlyle | IL | Wood Product Manufacturing321911 | 1-19 | ◐ LIKELY ACTIVE |
| PCProduction Cutting Services, Inc. - East Moline | East Moline | IL | Fabricated Metal Product Manufacturing332312 | 1-19 | ◐ LIKELY ACTIVE |
| PCProduction Cutting Services, Inc. - Waterman | Waterman | IL | Fabricated Metal Product Manufacturing332312 | 1-19 | ◐ LIKELY ACTIVE |
| QCQuad City Dental Laboratory | Moline | IL | Miscellaneous Manufacturing339116 | 1-19 | ◐ LIKELY ACTIVE |
| QHQuanex Homeshield Paris | Paris | IL | Fabricated Metal Product Manufacturing332321 | 1-19 | ◐ LIKELY ACTIVE |
| RRandolph | Chicago | IL | Food Manufacturing311340 | 1-19 | ◐ LIKELY ACTIVE |
| RWRapak- Woodridge | Woodridge | IL | Machinery Manufacturing333993 | 1-19 | ◐ LIKELY ACTIVE |
| RDRepro Direct L.L.C. | Elk Grove Village | IL | Printing and Related Support Activities323111 | 1-19 | ◐ LIKELY ACTIVE |
| RVRiver Valley Cooperative- Galva Mill | Galva | IL | Food Manufacturing311119 | 1-19 | ◐ LIKELY ACTIVE |
| RRockford | Rockford | IL | Fabricated Metal Product Manufacturing332111 | 1-19 | ◐ LIKELY ACTIVE |
| RPRockford (0120R) Pierce Box | Belvidere | IL | Paper Manufacturing322211 | 1-19 | ◐ LIKELY ACTIVE |
| RCRohrer Corporation | Bensenville | IL | Plastics and Rubber Products Manufacturing326112 | 1-19 | ◐ LIKELY ACTIVE |
Schmid Tool & Engineering CORP 1180 | Bensenville | IL | Fabricated Metal Product Manufacturing332710 | 1-19 | ◐ LIKELY ACTIVE |
| SISeaberg Industries IL | Rock Island | IL | Fabricated Metal Product Manufacturing332216 | 1-19 | ◐ LIKELY ACTIVE |
| SCSEK Corporation / Aurora | Aurora | IL | Nonmetallic Mineral Product Manufacturing327390 | 1-19 | ◐ LIKELY ACTIVE |
| SCSEK Corporation/MAIN | Aurora | IL | Nonmetallic Mineral Product Manufacturing327390 | 1-19 | ◐ LIKELY ACTIVE |
| SCSEK Corporation / Radatz | S Elgin | IL | Nonmetallic Mineral Product Manufacturing327390 | 1-19 | ◐ LIKELY ACTIVE |
| SHSEL Hawthorn Woods IL | Hawthorn Woods | IL | Electrical Equipment, Appliance & Component Manufacturing335314 | 1-19 | ◐ LIKELY ACTIVE |
| SBSG360 Broadview | Broadview | IL | Printing and Related Support Activities323111 | 1-19 | ◐ LIKELY ACTIVE |
| SPSierra Pacific Windows-Chicago | Elk Grove Village | IL | Wood Product Manufacturing321911 | 1-19 | ◐ LIKELY ACTIVE |
| SESIG Equipment Services | Northlake | IL | Machinery Manufacturing333993 | 1-19 | ◐ LIKELY ACTIVE |
| SSignature | Peoria | IL | Miscellaneous Manufacturing339116 | 1-19 | ◐ LIKELY ACTIVE |
| SOSika Ottawa | Ottawa | IL | Chemical Manufacturing325998 | 1-19 | ◐ LIKELY ACTIVE |
| SISmith Industrial Rubber | Rockford | IL | Fabricated Metal Product Manufacturing332912 | 1-19 | ◐ LIKELY ACTIVE |
| SDSOFIE - Decatur | Decatur | IL | Chemical Manufacturing325412 | 1-19 | ◐ LIKELY ACTIVE |
| SISpringfield Inc. (Old Address) | 420 W Main St, Geneseo, IL 61254, USA | IL | Fabricated Metal Product Manufacturing332994 | 1-19 | ◐ LIKELY ACTIVE |
| SSStar SU Fellows Cutter LLC | Hoffman Estates | IL | Machinery Manufacturing333515 | 1-19 | ◐ LIKELY ACTIVE |
| SCSt. Charles | St. Charles | IL | Food Manufacturing311119 | 1-19 | ◐ LIKELY ACTIVE |
| SCSt. Charles | Saint Charles | IL | Food Manufacturing311119 | 1-19 | ◐ LIKELY ACTIVE |
| SMSTLD2 - Midwest Block | Waterloo | IL | Nonmetallic Mineral Product Manufacturing327331 | 1-19 | ◐ LIKELY ACTIVE |
| S7Store 7 | Champaign | IL | Printing and Related Support Activities323111 | 1-19 | ◐ LIKELY ACTIVE |
| SIStoropack, Inc. - Hillside | Hillside | IL | Plastics and Rubber Products Manufacturing326140 | 1-19 | ◐ LIKELY ACTIVE |
| SWStraPack-Danville warehouse | Danville | IL | Plastics and Rubber Products Manufacturing326112 | 1-19 | ◐ LIKELY ACTIVE |
| SEStratasys Elgin | Elgin | IL | Machinery Manufacturing333248 | 1-19 | ◐ LIKELY ACTIVE |
| SEStryten Energy, LLC - Carol Stream | Carol Stream | IL | Electrical Equipment, Appliance & Component Manufacturing335911 | 1-19 | ◐ LIKELY ACTIVE |
| SISuburban Industries, Inc. | Elmhurst | IL | Fabricated Metal Product Manufacturing332710 | 1-19 | ◐ LIKELY ACTIVE |
| SISukup Illinois Distribution Center | Arcola | IL | Machinery Manufacturing333111 | 1-19 | ◐ LIKELY ACTIVE |
| SPSycamore Plant #260 | Sycamore | IL | Nonmetallic Mineral Product Manufacturing327320 | 1-19 | ◐ LIKELY ACTIVE |
| TBTalerico Bakery Retail Store | Summit | IL | Food Manufacturing311812 | 1-19 | ◐ LIKELY ACTIVE |
| TPTaylorville Plant | Taylorville | IL | Wood Product Manufacturing321920 | 1-19 | ◐ LIKELY ACTIVE |
| TCTazewell County ETSB | Pekin | IL | Computer and Electronic Product Manufacturing334310 | 1-19 | ◐ LIKELY ACTIVE |
| T7Technipaq 7717 | Crystal Lake | IL | Paper Manufacturing322220 | 1-19 | ◐ LIKELY ACTIVE |
| TPTetra Pak Incorportated Rockford | Rockford | IL | Machinery Manufacturing333241 | 1-19 | ◐ LIKELY ACTIVE |
The Home City Ice Company Chicago | Chicago | IL | Beverage and Tobacco Product Manufacturing312113 | 1-19 | ◐ LIKELY ACTIVE |
The Home City Ice Company South Elgin | South Elgin | IL | Beverage and Tobacco Product Manufacturing312113 | 1-19 | ◐ LIKELY ACTIVE |
| TKThermo King Sales & Service - Springfield | Springfield | IL | Machinery Manufacturing333415 | 1-19 | ◐ LIKELY ACTIVE |