| Corix/Cleveland Thermal OH | Utilities | 0 | — | F |
| Corixa Corporation PA | Manufacturing | 6 | $124,528 | — |
| Corixa Corporation dba GlaxoSmithKline Vaccines PA | Manufacturing | 0 | — | C |
| CORIZON HEALTH AL | — | 0 | — | — |
| Corizon Health CA | — | 0 | — | — |
| Corizon Health FL | — | 0 | — | — |
| Corizon Health IA | — | 0 | — | — |
| Corizon Health IN | — | 0 | — | — |
| Corizon Health VA | — | 0 | — | — |
| Corizon Health Regional Office NY | — | 0 | — | — |
| Corizon Inc. TN | — | 0 | — | — |
| Corizon, Inc. KY | — | 0 | — | — |
| Cork and Barrel Pub TX | Accommodation & Food Services | 0 | — | A |
| Cork Howard Construction Co. GA | Construction | 0 | — | A |
| Cork Industries PA | Manufacturing | 0 | — | A |
| Cork Industries Inc (Jacksonville, Florida) FL | Manufacturing | 0 | — | A |
| Cork Industries Inc. (Folcroft, PA) PA | Manufacturing | 0 | — | A |
| Cork Industries, Inc. FL | Manufacturing | 0 | — | A |
| Cork Supply USA, Inc. CA | Manufacturing | 0 | — | D |
| Corkery LLC AZ | Construction | 0 | — | F |
| Corky's Ribs & BBQ TN | — | 0 | — | — |
| Corkys Pest Control CA | Administrative & Waste Services | 0 | — | F |
| Corland Construction, LLC MT | Construction | 0 | — | D |
| Corle Building Systems PA | Manufacturing | 0 | — | F |
| Corlett Turner MI | Manufacturing | 0 | — | F |
| Corley Manufacturing TN | Manufacturing | 0 | — | A |
| Cormac, Inc. California Corporation CA | — | 0 | — | — |
| Cormaci Construction, Inc. NE | Construction | 0 | — | F |
| CORMETECH, Inc. NC | Manufacturing | 0 | — | D |
| CORMETECH, Inc. TN | Manufacturing | 0 | — | C |
| Cormier Chevrolet Company CA | — | 0 | — | — |
| Corn Belt Energy Corporation IL | Utilities | 0 | — | F |
| Corn Belt Power Cooperative IA | Utilities | 0 | — | A |
| Corn Heritage Village of Corn OK | Healthcare & Social Assistance | 0 | — | F |
| Corn Heritage Village of Weatherford OK | Healthcare & Social Assistance | 0 | — | F |
| CORN LP IA | Manufacturing | 0 | — | A |
| Corn oil One IA | Manufacturing | 0 | — | A |
| Corn Plus Ethanol-Winnebago 2019 MN | — | 0 | — | — |
| Corn Pro, Inc. IN | Manufacturing | 0 | — | F |
| Corn States Metal Fabricators IA | Manufacturing | 0 | — | F |
| Cornbread Ventures, LP - Ztejas TX | — | 0 | — | — |
| Corneke Holdings LLC MO | Construction | 0 | — | F |
| Cornelia Nixon Davis, Inc. NC | Healthcare & Social Assistance | 0 | — | F |
| Cornelius Renew Inc. IL | Manufacturing | 0 | — | D |
| Cornelius Veterinary Clinic OR | Professional & Technical Services | 0 | — | A |
| Cornell & Company, Inc. NJ | Construction | 0 | — | F |
| Cornell College IA | Educational Services | 1 | $70,400 | — |
| Cornell Construction Company, Inc. OK | Construction | 0 | — | A |
| Cornell Cookson - GYR AZ | Manufacturing | 0 | — | A |
| Cornell Cookson LLC PA | Manufacturing | 0 | — | F |
