| McDowell ARH KY | Healthcare & Social Assistance | 0 | - | - |
| McDowell Technical Community College NC | Educational Services | 1 | $44,138 | - |
| MCE Corporation CA | Construction | 0 | - | F |
| McElroy Metal IL | Manufacturing | 0 | - | F |
| McElroy's Inc. KS | Construction | 0 | - | F |
| McEnany Roofing, Inc FL | Construction | 0 | - | F |
| McEntire Produce SC | Agriculture & Forestry | 0 | - | F |
| MCF - Lino Lakes MN | Public Administration | 0 | - | F |
| MCF-Lino Lakes MN | Public Administration | 0 | - | F |
| MCF-Rush City MN | Public Administration | 0 | - | F |
| McFadden Communications, LLC dba Toof American Digital Printing TN | - | 0 | - | - |
| McFadyen Consulting Group, Inc. VA | Professional & Technical Services | 3 | $154,153 | - |
| McFarland & Sons NE | - | 0 | - | - |
| McFarland Building Group, LLC NC | Construction | 1 | $85,000 | - |
| McFarland Clinic IA | Healthcare & Social Assistance | 0 | - | D |
| Mcfarland Community Correctional Facility CA | - | 0 | - | - |
| McFarlane Manufacturing Co. Inc. WI | Manufacturing | 0 | - | F |
| McFarlane's Bark Inc OR | Manufacturing | 0 | - | F |
| MCG Health, LLC. WA | Professional & Technical Services | 8 | $148,920 | - |
| MCGA Hotels SF LLC CA | - | 0 | - | - |
| McGaw Medical Center of Northwestern University IL | Healthcare & Social Assistance | 1 | $90,082 | - |
| McGee Air Services AZ | Transportation & Warehousing | 0 | - | F |
| McGee Air Services CA | Transportation & Warehousing | 0 | - | F |
| McGee Air Services OR | Transportation & Warehousing | 0 | - | F |
| McGee Air Services WA | Transportation & Warehousing | 0 | - | F |
| McGehee Hospital AR | Healthcare & Social Assistance | 0 | - | F |
| McGhee Tyson Inn TN | - | 0 | - | - |
| McGlinchey Stafford PLLC LA | - | 0 | - | - |
| McGough Construction Co., LLC MN | Construction | 0 | - | B |
| McGowan Builders, Inc. NY | Construction | 2 | $101,525 | - |
| McGrath Automotive Group (DBA: McGrath Honda of St Charles) IL | Retail Trade | 0 | - | B |
| McGrath RentCorp CA | Real Estate | 2 | $163,809 | B |
| McGraw Hill IA | - | 0 | - | - |
| McGraw Hill LLC OH | Educational Services | 8 | $164,510 | - |
| McGraw-Hill Companies, Inc IA | - | 0 | - | - |
| McGraw-Hill Education CA | - | 0 | - | - |
| McGraw-Hill Education IN | - | 0 | - | - |
| McGraw-Hill Education MO | - | 0 | - | - |
| McGregor Metal OH | Manufacturing | 0 | - | F |
| McGriff Tire Company, Inc. AL | Retail Trade | 0 | - | A |
| McGrory Glass, Inc. NJ | Manufacturing | 0 | - | F |
| McGuffey Healthcare AL | Healthcare & Social Assistance | 0 | - | - |
| McGuire Memorial PA | Healthcare & Social Assistance | 0 | - | F |
| McGuire Moorman Hospitality LLC TX | Accommodation & Food Services | 1 | $65,000 | A |
| McGuireWoods LLP VA | Professional & Technical Services | 2 | $250,000 | - |
| MCH - 58 Baribeau ME | Healthcare & Social Assistance | 0 | - | F |
| MCH Electric CA | Construction | 0 | - | D |
| McHale McHale Landscape Design MD | Administrative & Waste Services | 0 | - | F |
| McHenry Township Fire Protection District IL | Public Administration | 0 | - | B |
| McHone Industries, Inc. NY | Manufacturing | 0 | - | F |
