| Master Klean Janitorial, INC CO | Administrative & Waste Services | 0 | - | C |
| Master Lock Company WI | - | 0 | - | - |
| Master Machine, Inc. MN | Manufacturing | 0 | - | F |
| Master Minds Consulting Services, LLC. TX | Professional & Technical Services | 1 | $121,514 | - |
| Master Power Transmission Inc. IN | Manufacturing | 2 | $88,007 | - |
| Master Spas IN | Manufacturing | 0 | - | F |
| Master Woodcraft Cabinetry TX | Manufacturing | 0 | - | F |
| Masterapp Labs LLC GA | Professional & Technical Services | 1 | $109,283 | - |
| Masterbrand Cabinets AL | - | 0 | - | - |
| Masterbrand Cabinets NC | Manufacturing | 0 | - | D |
| Masterbrand Cabinets Inc GA | Manufacturing | 0 | - | D |
| MasterBrand Cabinets LLC CA | - | 0 | - | - |
| Masterbrand Cabinets LLC OH | Manufacturing | 5 | $140,060 | - |
| MasterBrand Cabinets, Inc. IA | Manufacturing | 0 | - | B |
| Masterbrand Cabinets, Inc. IN | Manufacturing | 0 | - | B |
| MasterBrand Cabinets, Inc. VA | Manufacturing | 0 | - | A |
| MasterBrand, Inc. KS | Manufacturing | 0 | - | D |
| Masterbrand, Inc. KY | Manufacturing | 0 | - | D |
| Mastercard International Incorporated NY | Finance & Insurance | 61 | $141,074 | - |
| Mastercard Mobile Transactions Solutions, Inc. NY | Finance & Insurance | 1 | $166,000 | - |
| Mastercard Technologies, LLC MO | Finance & Insurance | 218 | - | - |
| Mastercard Transaction Services (US) LLC NY | Finance & Insurance | 1 | $138,000 | - |
| MasterControl Solutions, Inc. UT | Professional & Technical Services | 1 | $137,500 | - |
| MasterCorp Inc. CA | - | 0 | - | - |
| Mastercraft Electric, Inc. WA | Construction | 0 | - | F |
| Mastercraft Inc IN | Manufacturing | 0 | - | F |
| Mastercraft Industries Inc. WI | Manufacturing | 0 | - | A |
| Masterguard IN | Manufacturing | 0 | - | F |
| MasterMold WI | Manufacturing | 0 | - | F |
| Masterpiece Art Gallery CA | - | 0 | - | - |
| Masters Gallery Foods, Inc. WI | Wholesale Trade | 0 | - | D |
| Masters Machine Company Inc. ME | Manufacturing | 0 | - | F |
| Masters Transport & Logistics, LLC TX | Transportation & Warehousing | 0 | - | F |
| Masterson Company WI | Manufacturing | 0 | - | F |
| Mastro Services Inc TX | Professional & Technical Services | 6 | $88,819 | - |
| Mastroianni Bros, Inc. NY | - | 0 | - | - |
| Mastroianni Family Enterprises dba Jay's Catering & Ellie's Table CA | - | 0 | - | - |
| Mastronardi Produce MI | Transportation & Warehousing | 0 | - | A |
| Mastronardi Produce - USA, Inc. MI | Transportation & Warehousing | 1 | $150,000 | - |
| Mastronardi Produce Inc. ME | Agriculture & Forestry | 0 | - | F |
| Mastronardi Produce USA TX | Wholesale Trade | 0 | - | C |
| Masu Sushi and Robata MOA MN | - | 0 | - | - |
| Masu Sushi Apple Valley MN | - | 0 | - | - |
| Masuda, Funai, Eifert & Mitchell, Ltd. IL | Professional & Technical Services | 1 | $136,677 | - |
| MAT CV Braking Components, LLC TX | Manufacturing | 0 | - | D |
| Mat Hd, LLC GA | Manufacturing | 0 | - | F |
| Mat Holdings Inc. - GRIE IL | Wholesale Trade | 0 | - | F |
| MAT Holdings, Inc TN | Manufacturing | 0 | - | F |
| Mat-Su Borough School District AK | Educational Services | 0 | - | C |
| Mat-Su Valley III, LLC AK | Healthcare & Social Assistance | 1 | - | - |
