| Munich Reinsurance America, Inc. NJ | Finance & Insurance | 7 | $118,000 | - |
| Municipal District Services, LLC TX | Utilities | 0 | - | F |
| Municipal Employees' Retirement System of Michigan MI | Finance & Insurance | 1 | $88,607 | - |
| Municipal Testing Laboratory, INC. NY | Professional & Technical Services | 1 | $86,757 | - |
| Municipal Theatre Association of St. Louis MO | Arts & Entertainment | 0 | - | F |
| Municipality of Anchorage Public Transportation AK | Transportation & Warehousing | 0 | - | F |
| Municipio Autonomo De Caguas PR | Public Administration | 0 | - | D |
| Municipio Autonomo de Fajardo PR | Public Administration | 0 | - | F |
| Municipio de Barceloneta PR | Public Administration | 0 | - | F |
| Municipio De Cidra PW | Public Administration | 0 | - | D |
| Municipio De Rio Grande PR | Public Administration | 0 | - | B |
| Municipio De San Lorenzo AP | Public Administration | 0 | - | A |
| Municipio De San Lorenzo PR | Public Administration | 0 | - | A |
| Municipio de Yauco PR | Public Administration | 0 | - | D |
| Municipio Las Marias PR | Public Administration | 0 | - | D |
| Municorn INC CA | - | 9 | $112,923 | - |
| Munidex, Inc. NJ | Information & Media | 1 | $85,530 | - |
| Munn-Express Delivery and Logistics, LLC NC | Transportation & Warehousing | 0 | - | F |
| Munro And Associates, INC MI | Professional & Technical Services | 1 | $115,000 | - |
| Munson Healthcare MI | Healthcare & Social Assistance | 0 | - | F |
| Munson Lakes Nutrition MN | Manufacturing | 0 | - | F |
| Munson Medical Center MI | Healthcare & Social Assistance | 1 | - | - |
| Munster Medical Research Foundation, Inc. IN | Healthcare & Social Assistance | 1 | $79,061 | - |
| Munters Corporation MA | Manufacturing | 0 | - | B |
| Munters Corporation TX | Manufacturing | 0 | - | F |
| 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 | 7 | $191,792 | - |
| Murata Power Solutions MA | Manufacturing | 3 | $160,000 | - |
| Murdoch Developmental Center NC | Healthcare & Social Assistance | 0 | - | F |
| Murdock Martell, Inc. CA | Professional & Technical Services | 1 | $104,832 | - |
| Murex North America, Inc. NY | Professional & Technical Services | 4 | $152,750 | - |
| Murk's Village Market Inc. MI | Retail Trade | 0 | - | D |
| Murmuration Research Institute Inc. NY | Professional & Technical Services | 2 | $193,104 | - |
| Murnane Construction Services, Inc. NY | Construction | 0 | - | F |
| Muroc Joint Unified School District CA | Educational Services | 2 | $44,915 | - |
| Murotech Ohio Corporation OH | - | 0 | - | - |
| Murphy Cap & Gown Company FL | - | 0 | - | - |
| Murphy Company OR | Manufacturing | 0 | - | C |
| Murphy Exploration & Production Company USA TX | Mining & Extraction | 2 | $147,368 | - |
| Murphy Exploration & Production Company USA TX | - | 3 | $193,253 | - |
| Murphy Logistics Solutions MN | Transportation & Warehousing | 0 | - | B |
| Murphy Tractor & Equipment Co. NE | Other Services | 0 | - | F |
| Murphy's Markets Inc. CA | Retail Trade | 0 | - | D |
| Murphy-Brown LLC NC | Transportation & Warehousing | 0 | - | D |
| Murphy-Brown LLC VA | Transportation & Warehousing | 6 | $131,331 | A |
| Murray American Energy Corp. PA | - | 0 | - | - |