| Midwest Refrigerated Services IL | Transportation & Warehousing | 0 | — | A |
| Midwest Refrigerated Services WI | Transportation & Warehousing | 0 | — | A |
| Midwest Refrigerated Transport INC WI | Transportation & Warehousing | 0 | — | D |
| Midwest Refrigeration Corporation IN | Other Services | 0 | — | F |
| Midwest Reliability Organization MN | Public Administration | 0 | — | A |
| Midwest Remediation IN | Administrative & Waste Services | 0 | — | A |
| Midwest Renewable Energy NE | Manufacturing | 0 | — | F |
| Midwest Rentals Inc IN | Construction | 0 | — | A |
| Midwest Restoration WI | Administrative & Waste Services | 0 | — | F |
| Midwest Roll Forming & Mfg., Inc. IN | Manufacturing | 0 | — | F |
| Midwest Roofing NE | — | 0 | — | — |
| Midwest Roofing-Sheet Metal IN | Construction | 0 | — | A |
| Midwest Rubber Company MI | Manufacturing | 0 | — | D |
| Midwest Sanitary Service, Inc. IL | Transportation & Warehousing | 0 | — | A |
| Midwest Scrap Management KS | Wholesale Trade | 0 | — | F |
| Midwest Scrap Management MO | Wholesale Trade | 0 | — | C |
| Midwest Scrap Management OK | Wholesale Trade | 0 | — | D |
| Midwest Screw Products, Inc. MN | Manufacturing | 0 | — | F |
| Midwest Senior Living WI | — | 0 | — | — |
| Midwest Service Group MO | Administrative & Waste Services | 0 | — | A |
| Midwest Specialized Transportation 2022 MN | — | 0 | — | — |
| Midwest Specialty Maintenance, Inc. MN | Administrative & Waste Services | 0 | — | A |
| Midwest Spine and Brain Institute MN | Healthcare & Social Assistance | 0 | — | A |
| Midwest Sport and Turf Systems, LLC. IL | Construction | 0 | — | A |
| Midwest Sports Supply, LLC OH | Retail Trade | 1 | $89,898 | — |
| MIDWEST STAIRS & IRON INC WI | Manufacturing | 0 | — | A |
| Midwest Steel AL | Construction | 0 | — | C |
| Midwest Steel MI | Construction | 0 | — | A |
| Midwest Steel Works, Inc. NE | Manufacturing | 0 | — | F |
| Midwest Steel, Inc. TX | Construction | 0 | — | A |
| Midwest Stone Management MN | Healthcare & Social Assistance | 0 | — | A |
| Midwest Tank Company MN | Manufacturing | 0 | — | A |
| Midwest Tape, LLC OH | Wholesale Trade | 0 | — | A |
| Midwest Terminals of Toledo Inc OH | Transportation & Warehousing | 0 | — | A |
| Midwest Terminals of Toledo Internationa OH | Transportation & Warehousing | 0 | — | A |
| Midwest Thermal Insulation, Inc. IA | Construction | 0 | — | A |
| Midwest Tile & Concrete IN | Manufacturing | 0 | — | F |
| Midwest Tile and Concrete IN | Manufacturing | 0 | — | F |
| Midwest Tile Supply Co. NE | Wholesale Trade | 0 | — | D |
| Midwest Tool and Cutlery Company MI | Manufacturing | 0 | — | F |
| Midwest Tool, Inc. MO | Manufacturing | 0 | — | A |
| Midwest Tops, Inc WI | Construction | 0 | — | F |
| Midwest Track Services Corp IL | Construction | 0 | — | A |
| Midwest Trailer Manufacturing LLC IL | Manufacturing | 0 | — | F |
| Midwest Transit Equipment IN | Wholesale Trade | 0 | — | C |
| Midwest Transit Equipment MI | Wholesale Trade | 0 | — | B |
| Midwest Transit Equipment MO | Wholesale Trade | 0 | — | A |
| Midwest Transit Equipment, Inc IL | Wholesale Trade | 0 | — | B |
| Midwest Transit Equipment, Inc WI | Wholesale Trade | 0 | — | A |
| Midwest Transplant Network KS | Healthcare & Social Assistance | 0 | — | A |
