| M Cubed Technology CT | Manufacturing | 0 | — | A |
| M Cubed Technology DE | Manufacturing | 0 | — | A |
| M D B Interiors, Inc. CA | Construction | 0 | — | A |
| M Digital LLC NJ | Professional & Technical Services | 8 | $96,936 | — |
| M E SUPPLY COMPANY OH | Retail Trade | 0 | — | A |
| M F & H Textiles, Inc. GA | Manufacturing | 0 | — | B |
| M G Abbott, Inc. OH | Construction | 0 | — | A |
| M H Brenner Recycling Inc PA | Wholesale Trade | 0 | — | F |
| M Hale Enterprises LLC PA | Retail Trade | 0 | — | A |
| M I K O, INC. TN | Construction | 0 | — | F |
| M J Shelton enerprises IN | Professional & Technical Services | 0 | — | A |
| M Jall Homes, LLC FL | Real Estate | 0 | — | A |
| M K Dye Corp CA | Other Services | 0 | — | A |
| M K Harvesting Inc FL | Agriculture & Forestry | 0 | — | D |
| M L Houck Construction Co. OR | Construction | 0 | — | F |
| M Lanza engineering PLLC TX | Professional & Technical Services | 2 | $92,875 | — |
| M M Jackson Farms Inc CA | Agriculture & Forestry | 0 | — | F |
| M Maintenance Construction Clean-Up & Grading, Inc. CA | Administrative & Waste Services | 0 | — | A |
| M Moser Associates LLC NY | Professional & Technical Services | 1 | $81,557 | — |
| M of Tallahassee, Inc. FL | Construction | 0 | — | F |
| M Ontiveros FLC, Inc. CA | Agriculture & Forestry | 0 | — | A |
| M Pack Solutions LLC TN | Transportation & Warehousing | 0 | — | A |
| M Pineda Farming Co CA | Agriculture & Forestry | 0 | — | A |
| M R Products, Inc. MI | Manufacturing | 0 | — | A |
| M R TANNER CONSTRUCTION AZ | Construction | 0 | — | A |
| M Resort Spa Casino NV | — | 0 | — | — |
| M Rodrigue and Son, Inc. LA | Manufacturing | 0 | — | C |
| M Royce Architecture CA | Professional & Technical Services | 1 | $88,800 | — |
| M S D MARTINSVILLE SCHOOLS IN | Educational Services | 0 | — | A |
| M Science LLC NY | Finance & Insurance | 5 | $132,000 | — |
| M Shaffer Inc OR | Retail Trade | 0 | — | A |
| M Social Hotel NY | Construction | 0 | — | A |
| M Social Hotel Times Square New York NY | Accommodation & Food Services | 0 | — | F |
| M SQUARED CONSTRUCTION, INC CA | Construction | 0 | — | F |
| M Squared LLC OH | Construction | 0 | — | F |
| M Star Shipping Corp CA | Transportation & Warehousing | 0 | — | F |
| M THREE RANCHES, LLC CA | Agriculture & Forestry | 0 | — | D |
| M WATANABE ELECTRICAL CONTRACTOR INC HI | Construction | 0 | — | D |
| M Work LLC OH | Other Services | 2 | $72,942 | — |
| M Zone Logistics LLC NY | Transportation & Warehousing | 0 | — | F |
| M&A Family Enterprise Inc IN | Administrative & Waste Services | 0 | — | F |
| M&A Projects Inc NY | Construction | 0 | — | A |
| M&B Environmental, Inc. PA | Utilities | 0 | — | F |
| M&B Metal Products AL | Manufacturing | 0 | — | F |
| M&B Services LLC PA | Construction | 0 | — | F |
| M&C Beare Inc CA | Retail Trade | 0 | — | A |
| M&C Hotel Interest, Inc. CA | — | 0 | — | — |
| M&C Management Services (USA) Inc formerly Millennium Hotels & Resorts AK | Accommodation & Food Services | 0 | — | A |
| M&C Management Services (USA) Inc formerly Millennium Hotels & Resorts AZ | Accommodation & Food Services | 0 | — | A |
| M&C Management Services (USA) Inc formerly Millennium Hotels & Resorts CA | Accommodation & Food Services | 0 | — | F |
