| MacLellan Integrated Services MI | Administrative & Waste Services | 0 | — | F |
| MacLellan Integrated Services MN | Administrative & Waste Services | 0 | — | A |
| MacLellan Integrated Services MP | Administrative & Waste Services | 0 | — | A |
| MacLellan Integrated Services MS | Administrative & Waste Services | 0 | — | A |
| MacLellan Integrated Services NC | Administrative & Waste Services | 0 | — | A |
| MacLellan Integrated Services SC | Administrative & Waste Services | 0 | — | F |
| MacLellan Integrated Services TN | Administrative & Waste Services | 0 | — | F |
| MacLellan Integrated Services TX | Administrative & Waste Services | 0 | — | C |
| MacLellan Integrated Services VA | Administrative & Waste Services | 0 | — | C |
| MacLellan Integrated Services WA | Administrative & Waste Services | 0 | — | A |
| MacLellan Integrated Services (at Rivian Automotive) IL | — | 0 | — | — |
| MACLEOD CONSTRUCTION INC NC | Construction | 0 | — | F |
| MacMillan-Piper, Inc. WA | Transportation & Warehousing | 0 | — | C |
| MACMOR Construction LLC PA | Construction | 0 | — | F |
| MacMurray College IL | — | 0 | — | — |
| MacNeal Hospital / Loyola Medicine IL | Healthcare & Social Assistance | 0 | — | D |
| MacNeil Glass Company, Inc. MA | Construction | 0 | — | A |
| MacNeill Pride Group Corp dba Gathr Outdoors CT | Wholesale Trade | 0 | — | A |
| MacNeill Pride Group Corp dba Gathr Outdoors ME | Manufacturing | 0 | — | F |
| MacNeill Pride Group Corp dba Gathr Outdoors TN | Wholesale Trade | 0 | — | A |
| MacNeill Pride Group Corp dba Gathr Outdoors UT | Wholesale Trade | 0 | — | A |
| Maco Bag Corporation NY | Manufacturing | 0 | — | C |
| MACO Industries AL | Manufacturing | 0 | — | A |
| Maco Transportation LLC TN | Transportation & Warehousing | 0 | — | A |
| Macom Technology Solutions CA | Manufacturing | 0 | — | A |
| Macom Technology Solutions MI | Manufacturing | 0 | — | A |
| Macom Technology Solutions NC | Manufacturing | 0 | — | A |
| Macom Technology Solutions NH | Manufacturing | 0 | — | A |
| Macom Technology Solutions Inc AZ | Manufacturing | 0 | — | A |
| 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 |
| Macomb Mechanical, Inc. MI | Construction | 0 | — | D |
| Macomb Senior Living, Horve Construction IL | Healthcare & Social Assistance | 0 | — | F |
| Macon Cigar & Tobacco Co. GA | Wholesale Trade | 0 | — | C |
| Macon Coca-Cola Bottling Co. MO | Transportation & Warehousing | 0 | — | F |
| Macon Commercial Tire GA | Retail Trade | 0 | — | A |
| Macon Construction Group, Inc. IL | Construction | 1 | $65,000 | — |
| Macon County IL | Administrative & Waste Services | 0 | — | A |
| Macon County TN | Construction | 0 | — | A |
| Macon County Nursing Home Districe MO | Healthcare & Social Assistance | 0 | — | F |
| MACON COUNTY NURSING HOME DISTRICT MO | Healthcare & Social Assistance | 0 | — | F |
| Macon County Sheltered Workshop MO | Healthcare & Social Assistance | 0 | — | F |
| Macon County, NC NC | Public Administration | 0 | — | A |
| Macon Electric Cooperative MO | Utilities | 0 | — | F |
| Macon GC LLC IL | Construction | 0 | — | A |
| Macon Resources, Inc. IL | Healthcare & Social Assistance | 0 | — | F |
| MACON RIDGE PUBLISHING LLC MS | Professional & Technical Services | 0 | — | A |
| Macon Treating Company MS | Manufacturing | 0 | — | A |
