| PSPanel Shop | New Lenox | IL | Machinery Manufacturing333612 | 100-499 | ◐ LIKELY ACTIVE |
| PHParker Hannifin Corporation | Des Plaines | IL | Machinery Manufacturing333995 | — | ◐ LIKELY ACTIVE |
| PCParkson Corporation Vernon Hills | Vernon Hills | IL | Machinery Manufacturing333318 | 100-499 | ◐ LIKELY ACTIVE |
| PRPentair - Roselle | Roselle | IL | Machinery Manufacturing333318 | 100-499 | ◐ LIKELY ACTIVE |
| PCPeoria Cibes Symmetry | Peoria | IL | Machinery Manufacturing333921 | 20-99 | ◐ LIKELY ACTIVE |
| PHPeters Heating and Air Conditioning, INC. | Quincy | IL | Machinery Manufacturing333415 | — | ◐ LIKELY ACTIVE |
| P1Plant 1 | Dixon | IL | Machinery Manufacturing333613 | 100-499 | ◐ LIKELY ACTIVE |
| PUPlasmatreat USA INC. | Elgin | IL | Machinery Manufacturing333517 | — | ◐ LIKELY ACTIVE |
| PKPMI Kyoto Packaging Systems | Elk Grove Village | IL | Machinery Manufacturing333993 | 100-499 | ◐ LIKELY ACTIVE |
| PCPower Curbers Companies | Mchenry | IL | Machinery Manufacturing333120 | 20-99 | ◐ LIKELY ACTIVE |
| PSPower Services Group - Melrose | Melrose Park | IL | Machinery Manufacturing333611 | 20-99 | ◐ LIKELY ACTIVE |
| PPProduct Planning INC | Elk Grove Village | IL | Machinery Manufacturing333923 | — | ◐ LIKELY ACTIVE |
| RWRapak- Woodridge | Woodridge | IL | Machinery Manufacturing333993 | 1-19 | ◐ LIKELY ACTIVE |
| RRRegal Rexnord | South Beloit | IL | Machinery Manufacturing333613 | 20-99 | ◐ LIKELY ACTIVE |
| RMReg-Ellen Machine Tool Corporation | Rockford | IL | Machinery Manufacturing333517 | 20-99 | ◐ LIKELY ACTIVE |
| RLReger Laser INC | Romeoville | IL | Machinery Manufacturing333248 | — | ◐ LIKELY ACTIVE |
| RERemote EE | Montgomery | IL | Machinery Manufacturing333922 | 20-99 | ◐ LIKELY ACTIVE |
| RIRexnord Industries, LLC | Downers Grove | IL | Machinery Manufacturing333613 | — | ◐ LIKELY ACTIVE |
| RRRMTS Romeoville | Romeoville | IL | Machinery Manufacturing333519 | 20-99 | ◐ LIKELY ACTIVE |
| RCRoanoke Cibes Symmetry | Roanoke | IL | Machinery Manufacturing333921 | 20-99 | ◐ LIKELY ACTIVE |
| RCRockford CTSC | Rockford | IL | Machinery Manufacturing333515 | 20-99 | ◐ LIKELY ACTIVE |
| RTRockford TEC | Rockford | IL | Machinery Manufacturing333515 | 20-99 | ◐ LIKELY ACTIVE |
| SSavage | Elk Grove Village | IL | Machinery Manufacturing333241 | 20-99 | ◐ LIKELY ACTIVE |
| SGSchafer Gear Works LLC. | Roscoe | IL | Machinery Manufacturing333612 | 20-99 | ◐ LIKELY ACTIVE |
| SSchaumburg | Schaumburg | IL | Machinery Manufacturing333993 | 20-99 | ◐ LIKELY ACTIVE |
| SMSchold Manufacturing LLC | Bedford Park | IL | Machinery Manufacturing333249 | 20-99 | ◐ LIKELY ACTIVE |
| SMSedwall Mfg. Co. | Saint Charles | IL | Machinery Manufacturing333514 | 20-99 | ◐ LIKELY ACTIVE |
| SEShadow Equipment | Bolingbrook | IL | Machinery Manufacturing333318 | 20-99 | ◐ LIKELY ACTIVE |
| SESIG Equipment Services | Northlake | IL | Machinery Manufacturing333993 | 1-19 | ◐ LIKELY ACTIVE |
| SASignode APT Roselle | Roselle | IL | Machinery Manufacturing333993 | 100-499 | ◐ LIKELY ACTIVE |
| SSingle | Neponset | IL | Machinery Manufacturing333131 | 100-499 | ◐ LIKELY ACTIVE |
| SASMW Autoblok Corp. | Wheeling | IL | Machinery Manufacturing333515 | 20-99 | ◐ LIKELY ACTIVE |
| SCSmw-autoblok Corporation | Wheeling | IL | Machinery Manufacturing333515 | — | ◐ LIKELY ACTIVE |
| STSolar Turbines Incorporated Chicago District Office | Downers Grove | IL | Machinery Manufacturing333611 | 20-99 | ◐ LIKELY ACTIVE |
| SMSolberg Manufacturing Hilltop | Itasca | IL | Machinery Manufacturing333413 | 100-499 | ◐ LIKELY ACTIVE |
| SHSouth Holland Plant | South Holland | IL | Machinery Manufacturing333515 | 20-99 | ◐ LIKELY ACTIVE |
| SRStandard Refrigeration LLC | Wood Dale | IL | Machinery Manufacturing333415 | 20-99 | ◐ LIKELY ACTIVE |
| SSStar SU Fellows Cutter LLC | Hoffman Estates | IL | Machinery Manufacturing333515 | 1-19 | ◐ LIKELY ACTIVE |
| SEStratasys Elgin | Elgin | IL | Machinery Manufacturing333248 | 1-19 | ◐ LIKELY ACTIVE |
| SISukup Illinois Distribution Center | Arcola | IL | Machinery Manufacturing333111 | 1-19 | ◐ LIKELY ACTIVE |
| TGTerraSource Global | Belleville | IL | Machinery Manufacturing333131 | 100-499 | ◐ LIKELY ACTIVE |
| TPTetra Pak Incorportated Rockford | Rockford | IL | Machinery Manufacturing333241 | 1-19 | ◐ LIKELY ACTIVE |
| TKThermo King Sales & Service - Rock Island | Rock Island | IL | Machinery Manufacturing333415 | 20-99 | ◐ LIKELY ACTIVE |
| TKThermo King Sales & Service - Springfield | Springfield | IL | Machinery Manufacturing333415 | 1-19 | ◐ LIKELY ACTIVE |
| TGThomas-zientz Group INC | Woodstock | IL | Machinery Manufacturing333514 | — | ◐ LIKELY ACTIVE |
| UIUesco Industries, Inc | Alsip | IL | Machinery Manufacturing333923 | 20-99 | ◐ LIKELY ACTIVE |
| UMUnited Machining North America LLC | Lincolnshire | IL | Machinery Manufacturing333517 | — | ◐ LIKELY ACTIVE |
| VPVf2 Power CO | Chicago | IL | Machinery Manufacturing333514 | — | ◐ LIKELY ACTIVE |
| VTVideojet Technology Belleville | Belleville | IL | Machinery Manufacturing333244 | 20-99 | ◐ LIKELY ACTIVE |
| WUWaterjet USA LLC | Geneva | IL | Machinery Manufacturing333517 | — | ◐ LIKELY ACTIVE |