| Midwestern Pet Foods, Inc. NY | Manufacturing | 0 | — | C |
| Midwestern Pet Foods, Inc. OK | Manufacturing | 0 | — | A |
| Midwestern University IL | Educational Services | 7 | $115,246 | — |
| MidWestOne Bank IA | — | 0 | — | — |
| Midwestrns Baete-Forseth HVAC SD | Construction | 0 | — | A |
| Midwood Management Corp. NY | Real Estate | 1 | $102,000 | — |
| MIECHIELS AUTO SALVAGE, LLC MI | Wholesale Trade | 0 | — | A |
| Miele CA | Wholesale Trade | 0 | — | A |
| Miele FL | Wholesale Trade | 0 | — | A |
| Miele IL | Wholesale Trade | 0 | — | A |
| Miele NJ | Wholesale Trade | 0 | — | C |
| Miele NY | Wholesale Trade | 0 | — | A |
| Mielke Electric Works MN | Manufacturing | 0 | — | A |
| Mielke Holdings OH | Construction | 0 | — | F |
| Mien Company MI | Manufacturing | 0 | — | F |
| Miencorp Masonry Inc. OH | Construction | 0 | — | A |
| MiEnergy Cooperative IA | Utilities | 0 | — | A |
| MiEnergy Cooperative MN | Utilities | 0 | — | D |
| Miersma Dairy OR | Agriculture & Forestry | 0 | — | F |
| Mies & Sons Trucking, LLC KS | Transportation & Warehousing | 0 | — | C |
| Mies Construction, Inc. KS | Construction | 0 | — | F |
| Mifab Inc IL | Manufacturing | 0 | — | F |
| MIG Acquisitions LLC. IL | Manufacturing | 0 | — | F |
| MIG Building Systems, LLC NY | Construction | 0 | — | F |
| MIG Reality AZ | Accommodation & Food Services | 0 | — | A |
| Migala Carpet One MI | Retail Trade | 0 | — | A |
| Mighty Aberdeen MD | Transportation & Warehousing | 0 | — | A |
| Mighty Move Transportation IL | Transportation & Warehousing | 0 | — | B |
| Mighty Plumbing and Heating, LLC CO | Construction | 0 | — | F |
| Mighty Software Inc. CA | Professional & Technical Services | 1 | $75,130 | — |
| Mighty Taco, Inc. NY | Accommodation & Food Services | 0 | — | F |
| Mighty Wash Operations NM | Other Services | 0 | — | A |
| Mighty Wash Operations TX | Other Services | 0 | — | B |
| Mightycause Corporation FL | Other Services | 1 | $126,090 | — |
| MightyHive, Inc. CA | Professional & Technical Services | 1 | $133,006 | — |
| MIGNON AND MIGNON CA | Wholesale Trade | 1 | $48,693 | — |
| Migrant Health Center PR | Healthcare & Social Assistance | 0 | — | F |
| Migrants Health Center, Inc PR | Healthcare & Social Assistance | 0 | — | F |
| Migrate Mate Inc NY | Professional & Technical Services | 2 | $102,500 | — |
| MIGRATION POLICY INSTITUTE DC | Other Services | 1 | $83,600 | — |
| MIGUEL OCHOA CA | Agriculture & Forestry | 0 | — | F |
| MIH Logistics CA | Transportation & Warehousing | 0 | — | F |
| Mihalko's General Contracting, Inc PA | Construction | 0 | — | F |
| Mihaylov & Elim, Inc. PS WA | Professional & Technical Services | 1 | $63,918 | — |
| Mihm Enterprises MI | Manufacturing | 0 | — | A |
| MII Brand Import, LLC OH | — | 0 | — | — |
| MII Moving and Storage LLC NH | Transportation & Warehousing | 0 | — | F |
| MII Technologies (AOUSC) TX | — | 0 | — | — |
| MIINC, L.P. TX | Construction | 0 | — | A |
| MIIT SOLUTIONS INC MI | Professional & Technical Services | 1 | $80,000 | — |