| McNeese State University LA | Educational Services | 3 | $58,744 | - |
| McNeil Consumer Healthcare PA | - | 0 | - | - |
| McNeil Elder Services MA | Healthcare & Social Assistance | 0 | - | F |
| McNeilus MN | Other Services | 0 | - | C |
| McNeilus Steel ND | Wholesale Trade | 0 | - | F |
| McNeilus Steel Inc. MN | Wholesale Trade | 0 | - | B |
| McNelly Services Inc IL | Administrative & Waste Services | 0 | - | F |
| MCP Computer Products, Inc. CA | Wholesale Trade | 1 | $97,802 | - |
| MCP Sequoia WA OpCo LLC WA | Healthcare & Social Assistance | 0 | - | F |
| McPhee Electric, Ltd CT | Construction | 0 | - | C |
| MCPHS University MA | Educational Services | 5 | $94,937 | - |
| MCQ6 Logistix AZ | Transportation & Warehousing | 0 | - | F |
| McQuade Children's Services (Group Home) NY | - | 0 | - | - |
| McQuade Children's Services (School, Res Cntr, Com based Service cntr) NY | - | 0 | - | - |
| MCR Health, Inc. FL | Healthcare & Social Assistance | 1 | $260,000 | - |
| McRae Industries, Inc. NC | Manufacturing | 0 | - | F |
| McRae Industries, Inc. - Wadeville NC | Manufacturing | 0 | - | D |
| Mcrae's US Mail Service, INC. WI | Transportation & Warehousing | 0 | - | F |
| MCRT Resources LLC WA | Construction | 1 | $87,526 | - |
| MCs Garage MN | - | 0 | - | - |
| McShane Welding PA | Manufacturing | 0 | - | F |
| McShea Contracting, LLC FL | Construction | 0 | - | F |
| mcSquared AI LLC IL | Information & Media | 3 | $91,000 | - |
| Mcsquared AI LLC NH | Information & Media | 1 | $92,040 | - |
| McStarlite Company CA | - | 0 | - | - |
| McSwain OH | - | 0 | - | - |
| Mcube Soft LLC. NJ | Professional & Technical Services | 1 | $100,000 | - |
| Mcure Health Solutions INC CA | Wholesale Trade | 1 | $94,640 | - |
| MCV Contracting Inc. FL | Construction | 0 | - | F |
| McVay Brothers Contractors, Inc. / Coeur d'Alene Window Company AZ | - | 0 | - | - |
| McVeigh Global Meeting and Events, LLC NY | - | 0 | - | - |
| MCW Staff/Faculty-MCW-IOH WI | Healthcare & Social Assistance | 0 | - | C |
| McWane OH | Manufacturing | 0 | - | F |
| Mcwane Cast Iron Pipe Company AL | - | 0 | - | - |
| McWane Ductile OH | Manufacturing | 0 | - | F |
| McWane Inc NY | Manufacturing | 0 | - | F |
| McWane Inc. TN | Manufacturing | 0 | - | F |
| McWane, Inc - MDU UT | Manufacturing | 0 | - | F |
| McWane, Inc. AL | Manufacturing | 0 | - | C |
| McWane, Inc. TX | Manufacturing | 0 | - | F |
| McWane, Inc. dba Anaco CA | - | 0 | - | - |
| MD & Associates, LLP TX | Professional & Technical Services | 3 | $65,714 | - |
| MD Anderson Cancer Center TX | Accommodation & Food Services | 0 | - | A |
| MD Anderson Cancer Center- Virginia Harris Cockrell Center TX | - | 0 | - | - |
| MD Anderson Cancer Center-Michale E. Keeling Center TX | - | 0 | - | - |
| MD Basciani & Sons, Inc. PA | Agriculture & Forestry | 0 | - | F |
| MD Electronics Corporation NY | - | 0 | - | - |
| Md Omg Emp, LLC OH | Healthcare & Social Assistance | 2 | $86,923 | - |
| MD Squared Property Group, LLC NY | Real Estate | 1 | $105,000 | - |
| MD2 Industries, LLC CA | - | 0 | - | - |
