| McClain's Supermarket, INC TX | Retail Trade | 0 | — | D |
| McClam & Associates Inc SC | Construction | 0 | — | A |
| McClarin Composites OK | Manufacturing | 0 | — | A |
| McClarin Composites PA | Manufacturing | 0 | — | F |
| McClarin Composites WA | Manufacturing | 0 | — | F |
| McClarin Composites (PA) PA | Manufacturing | 0 | — | F |
| McClarin Plastics, LLC dba McClarin Composites OK | Manufacturing | 0 | — | F |
| McClarty Farms CA | Agriculture & Forestry | 0 | — | F |
| McClatchy Bros., Inc. TX | Transportation & Warehousing | 0 | — | A |
| McClatchy Company, LLC CA | — | 0 | — | — |
| McClean Iron Works WA | Construction | 0 | — | F |
| McClelland Consulting Engineers, Inc AR | Professional & Technical Services | 0 | — | A |
| McClelland Inc OH | Transportation & Warehousing | 0 | — | C |
| McClendon Construction Company Inc TX | Construction | 0 | — | A |
| McClendon Electrical Services, Inc. TX | Construction | 0 | — | F |
| McClintock & Turk, Inc WA | Construction | 0 | — | F |
| McClintock Electric Inc. OH | Construction | 0 | — | A |
| Mcclone construction HI | Construction | 0 | — | A |
| McClone Construction (Sacramento) CA | Construction | 0 | — | F |
| McClone Construction Colorado CO | Construction | 0 | — | D |
| McClone Construction Comapany TX | Construction | 0 | — | F |
| McClone Construction-WA WA | Construction | 0 | — | F |
| McCloskey Mechanical Contractors Inc NJ | Construction | 0 | — | A |
| McClung Energy TX | Mining & Extraction | 0 | — | A |
| McClure and Sons WA | Construction | 0 | — | F |
| McClure Brothers Inc. WA | Construction | 0 | — | F |
| McClure Company PA | Construction | 0 | — | B |
| McClure Concrete, Inc. CO | Construction | 0 | — | F |
| McClure Engineering Company IA | Professional & Technical Services | 0 | — | F |
| McClure Industries OR | Manufacturing | 0 | — | F |
| McClure Properties LTD FL | Agriculture & Forestry | 0 | — | C |
| McClure's Pickles LLC MI | Manufacturing | 0 | — | C |
| McClurg Senior Care LLC OH | Healthcare & Social Assistance | 0 | — | F |
| Mccollister's Global Service's CA | Transportation & Warehousing | 0 | — | F |
| Mccollister's Global Service's IL | Transportation & Warehousing | 0 | — | F |
| Mccollister's Global Service's NJ | Transportation & Warehousing | 0 | — | D |
| Mccollister's Global Service's NY | Transportation & Warehousing | 0 | — | F |
| Mccollister's Global Service's TX | Transportation & Warehousing | 0 | — | C |
| McCollum Farms, Inc NY | Agriculture & Forestry | 0 | — | D |
| MCCOMAS INDUSTRIES LLC DBA FLORICO FOLIAGE FL | Agriculture & Forestry | 0 | — | A |
| McComb Nursing and Rehabilitation MS | Healthcare & Social Assistance | 0 | — | F |
| McComb School District MS | Educational Services | 1 | $52,410 | — |
| McComb Window and Door Co., Inc. IN | Wholesale Trade | 0 | — | B |
| McCON Building Corporation WI | Construction | 0 | — | A |
| McConnell & Associates KS | Retail Trade | 0 | — | A |
| McConnell & Associates MO | Manufacturing | 0 | — | F |
| McConnell & Jones LLP TX | Professional & Technical Services | 2 | $90,500 | — |
| MCCONNELL & SCULLY, INC. MI | Mining & Extraction | 0 | — | F |
| McConnell & Son Inc. AR | Transportation & Warehousing | 0 | — | A |
| Mcconnell Cabinets, Inc CA | — | 0 | — | — |
