| MCF-Rush City MN | Public Administration | 0 | — | F |
| MCF4 Solutions, LLC CA | Agriculture & Forestry | 0 | — | A |
| McFadden & Miller TX | Construction | 0 | — | F |
| McFadden Communications, LLC dba Toof American Digital Printing TN | — | 0 | — | — |
| McFadyen Consulting Group, Inc. VA | Professional & Technical Services | 3 | $154,153 | — |
| McFall Excavating, Inc VA | Construction | 0 | — | A |
| McFarland & Sons NE | — | 0 | — | — |
| McFarland and Company, Inc., Publishers NC | Information & Media | 0 | — | A |
| McFarland Building Group, LLC NC | Construction | 1 | $85,000 | — |
| McFarland Clinic IA | Healthcare & Social Assistance | 0 | — | D |
| Mcfarland Community Correctional Facility CA | — | 0 | — | — |
| McFarland Construction NC | Construction | 0 | — | A |
| McFarlane Inc. ND | Construction | 0 | — | F |
| 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 | — |
| MCG Senior Apartments, Ltd FL | Real Estate | 0 | — | A |
| MCG Utilities, Inc. PA | Construction | 0 | — | D |
| MCGA TX | Accommodation & Food Services | 0 | — | B |
| MCGA Hotels SF LLC CA | — | 0 | — | — |
| McGagin Legacy Enterprises CA | Arts & Entertainment | 0 | — | A |
| McGann and Chester LLC PA | Transportation & Warehousing | 0 | — | A |
| McGann Construction, Inc. WI | Construction | 0 | — | F |
| MCGAUGHEY BUSSES, INC. FL | Transportation & Warehousing | 0 | — | A |
| McGaw Medical Center of Northwestern University IL | Healthcare & Social Assistance | 1 | $90,082 | — |
| McGean-Rohco MI | Manufacturing | 0 | — | D |
| McGean-Rohco OH | Manufacturing | 0 | — | B |
| 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 |
| McGee Pest Control, Inc KY | Administrative & Waste Services | 0 | — | A |
| McGehee Hospital AR | Healthcare & Social Assistance | 0 | — | F |
| MCGEHEE PRODUCERS GIN AR | Agriculture & Forestry | 0 | — | F |
| McGhaha Electric Co., Inc. TN | Construction | 0 | — | F |
| McGhee Tyson Inn TN | — | 0 | — | — |
| McGill AirClean LLC OH | Manufacturing | 0 | — | A |
| MCGILL HOSE & COUPLING INC MA | Wholesale Trade | 0 | — | D |
| McGill Maintenance Partnership Ltd. TX | Manufacturing | 0 | — | A |
| McGillivray Construction CA | Construction | 0 | — | A |
| McGinley Inc. IL | Retail Trade | 0 | — | A |
| McGinn Bus Company MA | Transportation & Warehousing | 0 | — | F |
| McGinn Enterprises, Inc. NM | Agriculture & Forestry | 0 | — | A |
| McGinnis Wood Products, Inc. MO | Manufacturing | 0 | — | B |
| McGirt Trucking Co. NC | Transportation & Warehousing | 0 | — | B |
| McGivney Health Care Center IN | Healthcare & Social Assistance | 0 | — | F |
| McGlinchey Stafford PLLC LA | — | 0 | — | — |
| McGonigle Ambulance Service, Inc. PA | Healthcare & Social Assistance | 0 | — | F |
| McGough Construction Co., LLC MN | Construction | 0 | — | B |
| McGowan Builders, Inc. NY | Construction | 2 | $101,525 | — |
