| FCFulton CORP | Fulton | IL | Fabricated Metal Product Manufacturing332116 | 100-499 | ◐ LIKELY ACTIVE |
| GWGrundfos Water Utility INC | Aurora | IL | Machinery Manufacturing333914 | 20-99 | ◐ LIKELY ACTIVE |
| GGGsi Group LLC | Assumption | IL | Fabricated Metal Product Manufacturing332999 | 500+ | ◐ LIKELY ACTIVE |
| HEHaumiller Engineering | South Elgin | IL | Machinery Manufacturing333519 | 100-499 | ◐ LIKELY ACTIVE |
| HIHcc INC | Mendota | IL | Machinery Manufacturing333111 | 100-499 | ◐ LIKELY ACTIVE |
| HPHmc Products LLC | Caledonia | IL | Machinery Manufacturing333993 | 20-99 | ◐ LIKELY ACTIVE |
| IPIllinois Pulley & Gear INC | Schaumburg | IL | Fabricated Metal Product Manufacturing332710 | 20-99 | ◐ LIKELY ACTIVE |
Industrial Motion Control, LLC | Wheeling | IL | Fabricated Metal Product Manufacturing332999 | — | ◐ LIKELY ACTIVE |
| ILInpro/seal LLC | Rock Island | IL | Fabricated Metal Product Manufacturing332999 | 100-499 | ◐ LIKELY ACTIVE |
Kenyeri Consulting, LLC | Downers Grove | IL | Machinery Manufacturing333517 | 1-19 | ◐ LIKELY ACTIVE |
Kiwi Coders CORP | Wheeling | IL | Machinery Manufacturing333248 | 1-19 | ◐ LIKELY ACTIVE |
| LMLaystrom Manufacturing CO. | Chicago | IL | Fabricated Metal Product Manufacturing332312 | 20-99 | ◐ LIKELY ACTIVE |
| MAMartin Automatic CO | Rockford | IL | Machinery Manufacturing333244 | 100-499 | ◐ LIKELY ACTIVE |
| MEMartin Engineering | Neponset | IL | Machinery Manufacturing333131 | 100-499 | ◐ LIKELY ACTIVE |
| MPMi-jack Products, INC. | Hazel Crest | IL | Machinery Manufacturing333923 | 500+ | ◐ LIKELY ACTIVE |
| MPM&r Printing Equipment INC | Roselle | IL | Machinery Manufacturing333248 | 100-499 | ◐ LIKELY ACTIVE |
| PCPeddinghaus Corporation - Main | Bradley | IL | Machinery Manufacturing333512 | 100-499 | ◐ LIKELY ACTIVE |
| POPeerless of America INC | Effingham | IL | Primary Metal Manufacturing331316 | 20-99 | ◐ LIKELY ACTIVE |
| PHP & H Mfg CO | Shelbyville | IL | Machinery Manufacturing333111 | 100-499 | ◐ LIKELY ACTIVE |
Progress Rail Locomotive INC. | Mccook | IL | Machinery Manufacturing333618 | — | ◐ LIKELY ACTIVE |
| PGProphet Gear CO. | Prophetstown | IL | Fabricated Metal Product Manufacturing332117 | 1-19 | ◐ LIKELY ACTIVE |
| RRevcor | Carpentersville | IL | Machinery Manufacturing333412 | 100-499 | ◐ LIKELY ACTIVE |
| SPSchultes Precision Manufacturing INC | Buffalo Grove | IL | Fabricated Metal Product Manufacturing332710 | 100-499 | ▲ REPORTED CLOSED |
| SCSev-rend CORP | Collinsville | IL | Printing and Related Support Activities323111 | 20-99 | ◐ LIKELY ACTIVE |
| SSSwenson Spreader CO | Lindenwood | IL | Fabricated Metal Product Manufacturing332322 | 100-499 | ◐ LIKELY ACTIVE |
| TCTri C CO INC | Eureka | IL | Fabricated Metal Product Manufacturing332710 | 1-19 | ◐ LIKELY ACTIVE |
| USUnion Special CORP | Huntley | IL | Machinery Manufacturing333248 | 20-99 | ◐ LIKELY ACTIVE |
| WWWm. W. Meyer & Sons INC | Libertyville | IL | Machinery Manufacturing333922 | 100-499 | ◐ LIKELY ACTIVE |
| WWWm W Nugent & CO INC | Skokie | IL | Fabricated Metal Product Manufacturing332420 | 20-99 | ◐ LIKELY ACTIVE |
| YMYetter Manufacturing CO INC | Colchester | IL | Fabricated Metal Product Manufacturing332999 | 20-99 | ◐ LIKELY ACTIVE |
| ZCZenith Cutter INC | Loves Park | IL | Fabricated Metal Product Manufacturing332721 | 20-99 | ◐ LIKELY ACTIVE |
| ATA-1 Tool CORP | Melrose Park | IL | Machinery Manufacturing333514 | 20-99 | ◐ LIKELY ACTIVE |
| ATApex Tool Works | Rolling Meadows | IL | Machinery Manufacturing333514 | 20-99 | ◐ LIKELY ACTIVE |
| A3Azul 3d | Skokie | IL | Machinery Manufacturing333249 | 20-99 | ◐ LIKELY ACTIVE |
| EBEli Bridge CO | Jacksonville | IL | Machinery Manufacturing333998 | 1-19 | ◐ LIKELY ACTIVE |
| ECEmpire Comfort Systems | Belleville | IL | Machinery Manufacturing333414 | 100-499 | ◐ LIKELY ACTIVE |
| GCGleason Cutting Tools CORP | Loves Park | IL | Machinery Manufacturing333515 | 100-499 | ◐ LIKELY ACTIVE |
| HHydro-gear | Sullivan | IL | Machinery Manufacturing333996 | 500+ | ◐ LIKELY ACTIVE |
| MTMachine Tool Builders INC | Machesney Park | IL | Machinery Manufacturing333515 | 1-19 | ◐ LIKELY ACTIVE |
| QDQuantum Design INC | Caledonia | IL | Machinery Manufacturing333243 | 20-99 | ◐ LIKELY ACTIVE |
| SESmith, E M | Peoria | IL | Machinery Manufacturing333512 | 1-19 | ◐ LIKELY ACTIVE |
| TMTci Mfg & Equipment Sales INC | Walnut | IL | Machinery Manufacturing333131 | 100-499 | ◐ LIKELY ACTIVE |
| ACA & C Mold Company, INC | Saint Charles | IL | Machinery Manufacturing333511 | — | ◐ LIKELY ACTIVE |
| AMAda Metal Products | Lincolnwood | IL | Machinery Manufacturing333517 | 20-99 | ◐ LIKELY ACTIVE |
| AIAgri-fab INC | Sullivan | IL | Fabricated Metal Product Manufacturing332119 | 100-499 | ◐ LIKELY ACTIVE |
| ATArmin Tool and Manufacturing Company | South Elgin | IL | Machinery Manufacturing333511 | 20-99 | ◐ LIKELY ACTIVE |
| BCBunn-o-matic CORP | Springfield | IL | Fabricated Metal Product Manufacturing332999 | 500+ | ◐ LIKELY ACTIVE |
| CHCarter Hoffmann LLC | Mundelein | IL | Machinery Manufacturing333241 | 100-499 | ◐ LIKELY ACTIVE |
| CTChelar Tool & Die, Inc. | Belleville, Il | IL | Machinery Manufacturing333514 | 20-99 | ◐ LIKELY ACTIVE |
| CMChicago Mold Engineering CO INC | Saint Charles | IL | Machinery Manufacturing333511 | 20-99 | ◐ LIKELY ACTIVE |