| CSCustom Steel Processing (2) | Madison | IL | Primary Metal Manufacturing331110 | 20-99 | ◐ LIKELY ACTIVE |
| DTDun-Rite Tool & Machine Co | Cortland | IL | Machinery Manufacturing333517 | 20-99 | ◐ LIKELY ACTIVE |
| ECEmpire Comfort Systems | Belleville | IL | Chemical Manufacturing325211 | 100-499 | ◐ LIKELY ACTIVE |
| EKEx-cell Kaiser LLC | Franklin Park | IL | Fabricated Metal Product Manufacturing332439 | 20-99 | ◐ LIKELY ACTIVE |
| FMFluid Management LP | Wheeling | IL | Machinery Manufacturing333248 | 20-99 | ◐ LIKELY ACTIVE |
| FPForemost Plastic Products Co., INC. | Elmwood Park | IL | Machinery Manufacturing333248 | 20-99 | ◐ LIKELY ACTIVE |
| GKGeneral Kinematics CORP | Crystal Lake | IL | Machinery Manufacturing333998 | 100-499 | ◐ LIKELY ACTIVE |
| HEHenderson Engineering Co., INC | Sandwich, IL 60548 | IL | Machinery Manufacturing333413 | 20-99 | ◐ LIKELY ACTIVE |
| HNHertzberg New Method, Inc. | Jacksonville | IL | Machinery Manufacturing333244 | 100-499 | ◐ LIKELY ACTIVE |
Hyspan Precision Products INC | South Holland | IL | Fabricated Metal Product Manufacturing332919 | — | ◐ LIKELY ACTIVE |
| IEInstitutional Equipment INC | Bolingbrook | IL | Machinery Manufacturing333241 | 20-99 | ◐ LIKELY ACTIVE |
| JHJ. H. Benedict Co., Inc. | East Peoria | IL | Machinery Manufacturing333514 | 20-99 | ◐ LIKELY ACTIVE |
| JPJohnson Power LTD | Broadview | IL | Machinery Manufacturing333613 | 20-99 | ◐ LIKELY ACTIVE |
| LTLaird Technologies | Schaumburg | IL | Machinery Manufacturing333517 | 20-99 | ◐ LIKELY ACTIVE |
| LOLmt Onsrud | Waukegan | IL | Fabricated Metal Product Manufacturing332216 | 100-499 | ◐ LIKELY ACTIVE |
| MTMaterial Testing Technology, INC | Wheeling | IL | Machinery Manufacturing333514 | 1-19 | ◐ LIKELY ACTIVE |
| MPMicro Products Co | Peoria | IL | Machinery Manufacturing333992 | 20-99 | ◐ LIKELY ACTIVE |
| MIMinuteman International, INC. | Pingree Grove | IL | Machinery Manufacturing333120 | — | ◐ LIKELY ACTIVE |
| MTMorrison Timing Screw Co dba Morrison Container Handling Solutions | Glenwood | IL | Machinery Manufacturing333993 | 100-499 | ◐ LIKELY ACTIVE |
Precision Gage Company | Burr Ridge | IL | Machinery Manufacturing333514 | — | ◐ LIKELY ACTIVE |
| PPPrecision Products INC | Lincoln | IL | Chemical Manufacturing325612 | 100-499 | ◐ LIKELY ACTIVE |
| RBRed Bud Industries, INC. | Red Bud | IL | Machinery Manufacturing333519 | 100-499 | ◐ LIKELY ACTIVE |
| RGReliance Gear Corporation | Elmhurst | IL | Machinery Manufacturing333515 | 20-99 | ◐ LIKELY ACTIVE |
| RMRockford Manufacturing Group Inc | South Beloit | IL | Machinery Manufacturing333519 | 20-99 | ◐ LIKELY ACTIVE |
| RMRoeslein Modular Fabrication | Red Bud | IL | Machinery Manufacturing333993 | 100-499 | ◐ LIKELY ACTIVE |
| RCR.s. Corcoran CO. | New Lenox | IL | Machinery Manufacturing333914 | 1-19 | ◐ LIKELY ACTIVE |
Service Filtration CORP | Northbrook | IL | Machinery Manufacturing333914 | 100-499 | ◐ LIKELY ACTIVE |
Sparrow Millwright of Laharpe, INC | La Harpe | IL | Machinery Manufacturing333992 | — | ◐ LIKELY ACTIVE |
| TCTaylor Co- Division of Carrier Commercial Refrigeration INC | Rockton | IL | Machinery Manufacturing333241 | — | ◐ LIKELY ACTIVE |
Technics Fabrication INC | Bolingbrook | IL | Machinery Manufacturing333914 | — | ◐ LIKELY ACTIVE |
| TATechnotrans America INC | Mount Prospect | IL | Machinery Manufacturing333415 | 20-99 | ◐ LIKELY ACTIVE |
| TRThe Rdi Group General Partnership | Itasca | IL | Machinery Manufacturing333120 | 100-499 | ◐ LIKELY ACTIVE |
Thermal Care INC | Niles | IL | Machinery Manufacturing333415 | — | ◐ LIKELY ACTIVE |
| TPTriangle Package Machinery Company | Chicago | IL | Machinery Manufacturing333993 | 100-499 | ◐ LIKELY ACTIVE |
| WEWeiler Engineering INC | Elgin | IL | Machinery Manufacturing333993 | 20-99 | ◐ LIKELY ACTIVE |
| WHW. H. Leary Company | Tinley Park | IL | Machinery Manufacturing333993 | 20-99 | ◐ LIKELY ACTIVE |
| ARAdm Recycling INC | Peoria | IL | Machinery Manufacturing333120 | — | ◐ LIKELY ACTIVE |
| BMBimba Manufacturing CO | University Park | IL | Machinery Manufacturing333995 | — | ◐ LIKELY ACTIVE |
| CECaterpillar - East Peoria Plant | East Peoria | IL | Machinery Manufacturing333120 | — | ◐ LIKELY ACTIVE |
| CICaterpillar INC | Decatur | IL | Machinery Manufacturing333120 | — | ◐ LIKELY ACTIVE |
| CACnh America LLC | Goodfield | IL | Machinery Manufacturing333111 | — | ◐ LIKELY ACTIVE |
| CRConcentric Rockford INC | Rockford | IL | Machinery Manufacturing333996 | — | ◐ LIKELY ACTIVE |
| EIEcolab INC | Roscoe | IL | Machinery Manufacturing333248 | — | ◐ LIKELY ACTIVE |
| EMElkay Manufacturing CO | Savanna | IL | Machinery Manufacturing333415 | — | ◐ LIKELY ACTIVE |
| FLFiltran LLC | Des Plaines | IL | Machinery Manufacturing333999 | 20-99 | ◐ LIKELY ACTIVE |
| HCHeat & Control | Galesburg | IL | Machinery Manufacturing333241 | — | ◐ LIKELY ACTIVE |
| HEHollister-whitney Elevator Company LLC | Quincy | IL | Machinery Manufacturing333248 | — | ◐ LIKELY ACTIVE |
| KVKelley Vault Co/classic Granite | Champaign | IL | Machinery Manufacturing333998 | 1-19 | ◐ LIKELY ACTIVE |
| MLMitsubishi Logisnext Americas INC | Marengo | IL | Machinery Manufacturing333924 | — | ◐ LIKELY ACTIVE |
| MHMte Hydraulics, INC. | Rockford | IL | Machinery Manufacturing333996 | — | ◐ LIKELY ACTIVE |