| Clayco, Inc. MO | Construction | 51 | $111,862 | A |
| Claycomo Releasing, Inc. (Updated 05-10-2018) MO | - | 0 | - | - |
| Claymont Rehabilitation Center OH | Healthcare & Social Assistance | 0 | - | - |
| Claypool Electric OH | Construction | 0 | - | C |
| Claytek Inc. CA | - | 1 | $102,000 | - |
| Clayton Board of Education NJ | Educational Services | 0 | - | D |
| Clayton County Community Services Authority, Inc. GA | Healthcare & Social Assistance | 0 | - | A |
| Clayton Fixture Co, Inc. GA | Manufacturing | 0 | - | F |
| Clayton Health Systems NM | Healthcare & Social Assistance | 1 | $66,914 | - |
| Clayton Homes AL | Manufacturing | 0 | - | D |
| Clayton Homes AZ | Manufacturing | 0 | - | F |
| Clayton Homes IN | Manufacturing | 0 | - | D |
| Clayton Homes NC | Manufacturing | 0 | - | F |
| Clayton Homes PA | Manufacturing | 0 | - | A |
| Clayton Homes TN | Manufacturing | 0 | - | B |
| Clayton Homes TX | Manufacturing | 0 | - | F |
| Clayton Homes Albuquerque NM | Manufacturing | 0 | - | F |
| Clayton Homes Appalachia TN | Manufacturing | 0 | - | F |
| Clayton Homes Sacramento CA | Manufacturing | 0 | - | F |
| Clayton Homes Trendsetter Homes Div. TX | - | 0 | - | - |
| Clayton Industries CA | Manufacturing | 0 | - | C |
| Clayton Manufactured Homes PA | Manufacturing | 0 | - | F |
| Clayton Municipal Schools NM | - | 1 | $81,986 | - |
| Clayton Road Healthcare LLC MO | Healthcare & Social Assistance | 2 | $93,600 | - |
| Clayton Supply of Westmoreland TN | Manufacturing | 0 | - | F |
| Clayton Supply Westmoreland TN | Manufacturing | 0 | - | F |
| Clayton Timbrell & Company Inc CA | Construction | 1 | $155,000 | - |
| Clayton Watkins Construction CO INC KY | Construction | 0 | - | F |
| Clayton’s Galley, LLC CA | - | 0 | - | - |
| Clayton's Bakery And Bistro, LLC CA | - | 0 | - | - |
| Clayton, Dubilier & Rice, LLC NY | Finance & Insurance | 1 | $175,000 | - |
| Claytons Logistics LLC TN | Transportation & Warehousing | 0 | - | F |
| Clean Air Car Service & Parking Corp. NY | Transportation & Warehousing | 1 | $74,402 | - |
| Clean Air Group Inc. CT | Manufacturing | 1 | $170,000 | - |
| Clean Air Task Force, Inc. MA | - | 1 | $160,350 | - |
| Clean and Green Services, LLC FL | Transportation & Warehousing | 0 | - | F |
| Clean Care PA | - | 0 | - | - |
| Clean Companies U.S. Holdings Inc. CT | Manufacturing | 1 | $415,334 | - |
| Clean Earth Environmental Solutions WA | Administrative & Waste Services | 0 | - | F |
| Clean Earth Environmental Solutions, Inc. PA | Administrative & Waste Services | 2 | $299,728 | D |
| Clean Earth LLC PA | Professional & Technical Services | 1 | $152,693 | A |
| Clean Energy CA | Utilities | 0 | - | F |
| Clean Energy Associates, LLC NY | - | 1 | $163,886 | - |
| Clean Energy Works DC | Other Services | 2 | $110,000 | - |
| Clean Harbors Environmental Services, Inc. MA | Professional & Technical Services | 18 | $156,555 | - |
| Clean Harbors Inc CA | Administrative & Waste Services | 0 | - | B |
| Clean Harbors Inc MA | Administrative & Waste Services | 0 | - | A |
| Clean Harbors Inc WA | Administrative & Waste Services | 0 | - | F |
| Clean Scapes TX | Administrative & Waste Services | 0 | - | F |
| Clean Scapes - Austin, LLC TX | Administrative & Waste Services | 0 | - | F |