| Munson Healthcare MI | Healthcare & Social Assistance | 0 | — | F |
| Munson Lakes Nutrition MN | Manufacturing | 0 | — | F |
| Munson Medical Center MI | Healthcare & Social Assistance | 1 | $550,000 | — |
| Munson Williams Proctor Institute NY | Arts & Entertainment | 0 | — | C |
| Munson, Inc WI | Construction | 0 | — | F |
| Munster Medical Research Foundation, Inc. IN | Healthcare & Social Assistance | 1 | $79,061 | — |
| Munster Steel Co Inc. IN | Manufacturing | 0 | — | F |
| Munters Corporation MA | Manufacturing | 0 | — | B |
| Munters Corporation MI | Manufacturing | 0 | — | F |
| Munters Corporation TX | Manufacturing | 0 | — | F |
| Munters Corporation VA | Manufacturing | 0 | — | A |
| Munzing North America, LP SC | Manufacturing | 0 | — | A |
| Murad, LLC CA | — | 0 | — | — |
| Mural Consulting Corporation AZ | — | 0 | — | — |
| Mural Oncology, Inc. MA | Professional & Technical Services | 2 | $212,500 | — |
| Mural Technologies AZ | — | 0 | — | — |
| Muranaka Farm, Inc. CA | Agriculture & Forestry | 0 | — | F |
| Murata Electronics North America Inc. GA | Wholesale Trade | 4 | $115,767 | — |
| Murata Machinery USA, Inc. AZ | Wholesale Trade | 0 | — | A |
| Murata Machinery USA, Inc. NC | Wholesale Trade | 0 | — | A |
| Murata Machinery USA, Inc. OR | Wholesale Trade | 0 | — | A |
| Murata Machinery USA, Inc. UT | Wholesale Trade | 0 | — | A |
| MURATA POWER SOLUTIONS MA | Manufacturing | 2 | $99,814 | — |
| Murdoc Technology, LLC CA | Manufacturing | 0 | — | A |
| Murdoch Developmental Center NC | Healthcare & Social Assistance | 0 | — | F |
| Murdoch's Ranch and Home Supply CO | Retail Trade | 0 | — | C |
| Murdock Farms Inc. KY | Agriculture & Forestry | 0 | — | A |
| Murdock Martell, Inc. CA | Professional & Technical Services | 1 | $104,832 | — |
| Murdock Webbing Co., Inc. NC | Manufacturing | 0 | — | F |
| Murex North America, Inc. NY | Professional & Technical Services | 4 | $152,750 | — |
| Murfreesboro Hotel Partners LLC TN | Accommodation & Food Services | 0 | — | A |
| Murfreesboro HPA 2, LLC TN | Accommodation & Food Services | 0 | — | F |
| Murk's Village Market Inc. MI | Retail Trade | 0 | — | D |
| Murmuration Research Institute Inc. NY | Professional & Technical Services | 1 | $164,440 | — |
| Murnane Building Contractors, Inc. NY | Construction | 0 | — | D |
| Murnane Construction Services, Inc. NY | Construction | 0 | — | F |
| Murnane Packaging Corporation IL | Manufacturing | 0 | — | F |
| Murnane Specialties, Inc. IL | Manufacturing | 0 | — | F |
| MUROC JOINT UNIFIED SCHOOL DISTRICT CA | Educational Services | 2 | $44,915 | — |
| Murotech Ohio Corporation OH | — | 0 | — | — |
| Murphree Family Investments, Inc. AR | Construction | 0 | — | C |
| Murphree Paving MS | Construction | 0 | — | F |
| Murphy & Miller, Inc. IL | Construction | 0 | — | F |
| Murphy and Nolan Inc. NY | Wholesale Trade | 0 | — | D |
| MURPHY BROS. TRUCKING & CONSTRUCTION, LLC LA | Transportation & Warehousing | 0 | — | A |
| Murphy Cap & Gown Company FL | — | 0 | — | — |
| Murphy Company OR | Manufacturing | 0 | — | C |
| Murphy Company WA | Manufacturing | 0 | — | A |
| Murphy Cormier General Contractor Inc LA | Construction | 0 | — | D |
| Murphy Electric & Industrial Control, LLC. MA | Construction | 0 | — | B |
