| BLBukowina LLC | Bensenville | IL | Machinery Manufacturing333912 | — | ◇ UNVERIFIED |
| CICarbi-grind, Incorporated | Vernon Hills | IL | Machinery Manufacturing333999 | — | ◇ UNVERIFIED |
| CMCardinal Mfg | Mount Vernon | IL | Machinery Manufacturing333924 | — | ◇ UNVERIFIED |
| CCaterpillar | Montgomery | IL | Machinery Manufacturing333120 | — | ◇ UNVERIFIED |
| CECaterpillar Engine Systems, INC. | Pontiac | IL | Machinery Manufacturing333618 | — | ◇ UNVERIFIED |
| CGCaterpillar Global Mining LLC | Carrier Mills | IL | Machinery Manufacturing333131 | — | ◇ UNVERIFIED |
| CICaterpillar INC | Edwards | IL | Machinery Manufacturing333618 | — | ◇ UNVERIFIED |
| CICaterpillar INC | East Peoria | IL | Machinery Manufacturing333120 | — | ◇ UNVERIFIED |
| CICaterpillar INC. | Mossville | IL | Machinery Manufacturing333618 | — | ◇ UNVERIFIED |
| CICaterpillar, INC. | East Peoria | IL | Machinery Manufacturing333120 | — | ◇ UNVERIFIED |
| CICaterpillar INC - Mossville | Mossville | IL | Machinery Manufacturing333618 | — | ◇ UNVERIFIED |
| CCC. Cretors & Company | Wood Dale | IL | Machinery Manufacturing333294 | — | ◇ UNVERIFIED |
| CICentral Illinois Mfg CO | Bement | IL | Machinery Manufacturing333998 | — | ◇ UNVERIFIED |
| CWChenoa Welding & Fabrication, INC. | Chenoa | IL | Fabricated Metal Product Manufacturing332312 | — | ◇ UNVERIFIED |
| CMChicago Measurement, L.L.C. | Mchenry | IL | Machinery Manufacturing333997 | — | ◇ UNVERIFIED |
| CMChicago Metallic CORP | Forest View | IL | Machinery Manufacturing333414 | — | ◇ UNVERIFIED |
| CSChurch Street Pumping Station | Bensenville | IL | Machinery Manufacturing333914 | — | ◇ UNVERIFIED |
| CKCjt Koolcarb, INC. | Carol Stream | IL | Machinery Manufacturing333515 | — | ◇ UNVERIFIED |
| CEClearBlu Environmental, LLC | Oak Brook | IL | Machinery Manufacturing333318 | — | ◇ UNVERIFIED |
| CICnh Industrial America LLC | Burr Ridge | IL | Machinery Manufacturing333111 | — | ◇ UNVERIFIED |
| CGCompass Group Usa, INC. | Bloomingdale | IL | Machinery Manufacturing333311 | — | ◇ UNVERIFIED |
| CACompressed Air Advisors, Inc. | Westchester | IL | Machinery Manufacturing333912 | — | ◇ UNVERIFIED |
| CEConcordia Enterprises LLC | Antioch | IL | Machinery Manufacturing333248 | — | ◇ UNVERIFIED |
| CPConley Precision Engines INC | Glen Ellyn | IL | Machinery Manufacturing333618 | — | ◇ UNVERIFIED |
| CSConstruction Solutions of Chicago Inc | Villa Park | IL | Machinery Manufacturing333999 | — | ◇ UNVERIFIED |
| CGContainer Graphics CORP | Bensenville | IL | Machinery Manufacturing333514 | — | ◇ UNVERIFIED |
| CCContinental Custom Ingredients INC | Dixon | IL | Machinery Manufacturing333922 | — | ◇ UNVERIFIED |
| CSContour Saws INC | Des Plaines | IL | Machinery Manufacturing333517 | — | ◇ UNVERIFIED |
| CSConverting Systems, INC. | Schaumburg | IL | Machinery Manufacturing333248 | — | ◇ UNVERIFIED |
| CICooktek Induction Systems, LLC | Chicago | IL | Machinery Manufacturing333994 | — | ◇ UNVERIFIED |
| CTCooling Tower Depot, INC. | Bedford Park | IL | Machinery Manufacturing333415 | — | ◇ UNVERIFIED |
| CICornelius, INC. | Glendale Heights | IL | Machinery Manufacturing333415 | — | ◇ UNVERIFIED |
| CCCorner Caff | Oswego | IL | Machinery Manufacturing333999 | — | ◇ UNVERIFIED |
| CECozad Enterprises LLC | Wood dale | IL | Machinery Manufacturing333519 | — | ◇ UNVERIFIED |
| CECranes & Equipment CORP. | Peoria | IL | Machinery Manufacturing333249 | — | ◇ UNVERIFIED |
| CLCrothall Laundry Services, INC. Dba Crothall Healthcare | Wheeling | IL | Machinery Manufacturing333312 | — | ◇ UNVERIFIED |
| CECrown Equipment Corporation | Romeoville | IL | Machinery Manufacturing333924 | — | ◇ UNVERIFIED |
| CSC & S Tool and Mold CO | Carol Stream | IL | Machinery Manufacturing333514 | — | ◇ UNVERIFIED |
| CCCulligan Commercial Assembly | Libertyville | IL | Beverage and Tobacco Product Manufacturing312112 | — | ◇ UNVERIFIED |
 Cummins Allison | Mount Prospect | IL | Machinery Manufacturing333310 | — | ◇ UNVERIFIED |
| CECWF Enterprises, LLC | Wood Dale | IL | Machinery Manufacturing333992 | — | ◇ UNVERIFIED |
| DPD&S Properties Group LLC | Cary | IL | Machinery Manufacturing333514 | — | ◇ UNVERIFIED |
| DTDart Tech LLC | Streamwood | IL | Machinery Manufacturing333511 | — | ◇ UNVERIFIED |
| DCDeere & CO | Moline | IL | Machinery Manufacturing333112 | — | ◇ UNVERIFIED |
| DCDeere & CO | Coal Valley | IL | Machinery Manufacturing333111 | — | ◇ UNVERIFIED |
| DADeMoss Ag Inc. | Rushville | IL | Machinery Manufacturing333111 | — | ◇ UNVERIFIED |
| DRDiamond Roller CO | Elk Grove Village | IL | Machinery Manufacturing333248 | — | ◇ UNVERIFIED |
| DRDms Rotary | Lake Zurich | IL | Machinery Manufacturing333514 | — | ◇ UNVERIFIED |
| DEDoyle Equipment Manufacturing CO. | Quincy | IL | Machinery Manufacturing333111 | — | ◇ UNVERIFIED |
| DSDr Sperry & CO | North Aurora | IL | Machinery Manufacturing333513 | — | ◇ UNVERIFIED |
