| Machu Picchu Energy LLC CA | Manufacturing | 4 | $169,275 | - |
| Machupicchu Restaurant LLC RI | Accommodation & Food Services | 1 | $67,496 | - |
| Macias Gini & O'Connell LLP CA | Professional & Technical Services | 12 | $100,676 | - |
| MacInnis Group, LLC PA | Manufacturing | 0 | - | F |
| MacIntosh Linen & Uniform, Inc. PA | Other Services | 0 | - | B |
| Mack Energy Corporation NM | Agriculture & Forestry | 0 | - | D |
| Mack Industries FL | Manufacturing | 0 | - | F |
| Mack Industries MI | Manufacturing | 0 | - | F |
| Mack Industries OH | Manufacturing | 0 | - | F |
| Mack Logistics LLC PA | Transportation & Warehousing | 0 | - | F |
| Mack Molding Company NC | Manufacturing | 0 | - | A |
| Mack Molding Company SC | Manufacturing | 0 | - | F |
| Mack Molding Company VT | Manufacturing | 0 | - | F |
| Mack Studios, Inc. NY | Manufacturing | 0 | - | F |
| Mack Technologies MA | Manufacturing | 1 | $125,000 | - |
| Mack Trucks Lehigh Valley Operations PA | Manufacturing | 0 | - | F |
| Mack Trucks, Inc. NC | Manufacturing | 5 | $105,267 | - |
| Mack Trucks, Inc. PA | - | 0 | - | - |
| Mackay Communications, Inc. NC | Other Services | 1 | $90,002 | - |
| MacKay Manufacturing WA | Manufacturing | 0 | - | F |
| Mackenthun's Supermarket Inc MN | Retail Trade | 0 | - | C |
| Mackinac Island Ferry Company MI | Transportation & Warehousing | 0 | - | F |
| Mackintosh Academy Littleton LLC CO | Educational Services | 1 | $49,480 | - |
| Macksteel Warehouse, Inc. SD | Wholesale Trade | 0 | - | F |
| Maclean Fogg MI | Manufacturing | 0 | - | F |
| MacLean Fogg PA | Manufacturing | 0 | - | F |
| Maclean Power Systems AL | - | 0 | - | - |
| MacLean Power Systems SC | Manufacturing | 0 | - | C |
| Maclean-Curtis NC | Manufacturing | 0 | - | F |
| MacLean-Fogg IL | Manufacturing | 0 | - | F |
| MacLean-fogg Engineered Solutions LLC MI | Manufacturing | 0 | - | F |
| MacLellan Integrated Services (at Rivian Automotive) IL | - | 0 | - | - |
| MacMillan-Piper, Inc. WA | Transportation & Warehousing | 0 | - | C |
| MacMurray College IL | - | 0 | - | - |
| MacNeal Hospital / Loyola Medicine IL | Healthcare & Social Assistance | 0 | - | D |
| MACOM Technology Solutions Inc. NY | - | 0 | - | - |
| Macom Technology Solutions,INC. MA | Manufacturing | 2 | $147,500 | A |
| Macomb County MI | Public Administration | 0 | - | B |
| Macomb County Human Services Board an Agency of Macomb County Martha T Berry MCF MI | Healthcare & Social Assistance | 0 | - | F |
| Macon Construction Group, Inc. IL | Construction | 1 | $65,000 | - |
| Macon County IL | Administrative & Waste Services | 0 | - | A |
| Macon County, NC NC | Public Administration | 0 | - | A |
| Macoupin County Public Health Department IL | Public Administration | 1 | $183,000 | - |
| Macquarie Aircraft Leasing Services (US) Inc. CA | Real Estate | 2 | $127,500 | - |
| Macquarie America Holdings Inc. NY | Management of Companies | 17 | $177,059 | - |
| Macquarie CGM Trading Pty Limited TX | Management of Companies | 1 | $125,000 | - |
| Macquarie Funding Holdings, Inc. CA | - | 0 | - | - |
| Macquarie Global Services (USA) LLC NY | Management of Companies | 41 | $149,719 | - |
| Macquarie Holdings (U.S.A.) Inc.(US Cash Equities Division) NY | - | 0 | - | - |
| Macquarie Holdings (Usa) Inc. CA | - | 0 | - | - |
