| The Montclare Supportive Living Community IL | Healthcare & Social Assistance | 0 | — | F |
| The Monte Vista Cooperative CO | Retail Trade | 0 | — | D |
| The Montevista at Coronado TX | Healthcare & Social Assistance | 0 | — | A |
| The Monument Companies, Inc. VA | Management of Companies | 0 | — | A |
| The Moore Co RI | Manufacturing | 0 | — | F |
| The Moorings Club, Inc. FL | Arts & Entertainment | 0 | — | B |
| The Moran at City Center TX | — | 0 | — | — |
| The Morcos Group CA | Professional & Technical Services | 1 | $104,000 | — |
| The Morey Corporation IL | Manufacturing | 1 | $128,461 | A |
| The Morey Organization NJ | Arts & Entertainment | 0 | — | F |
| The Morgan I VA | Real Estate | 0 | — | A |
| The Morgan II VA | Real Estate | 0 | — | A |
| The Morganti Group TX | Construction | 0 | — | A |
| The Morganti Group Inc. CT | Construction | 0 | — | A |
| The Morganti Group Inc. FL | Construction | 0 | — | A |
| The Morganti Group Inc. NY | Construction | 0 | — | A |
| The Morgridge Institute For Research Inc. WI | Professional & Technical Services | 4 | $70,283 | — |
| The Morikami Inc FL | Arts & Entertainment | 0 | — | D |
| The Morning Consult LLC DC | Information & Media | 1 | $135,000 | — |
| THE MORNING STAR COMPANY CA | Agriculture & Forestry | 0 | — | D |
| THE MORNING STAR PACKING COMPANY CA | Manufacturing | 0 | — | B |
| The Morning Star Packing Company - Los Banos CA | Manufacturing | 0 | — | F |
| The Morning Star Trucking Company CA | Transportation & Warehousing | 0 | — | F |
| The Morton Arboretum IL | Arts & Entertainment | 0 | — | C |
| The Mosaic Company FL | Manufacturing | 1 | $148,000 | A |
| The Moses H. Cone Memorial Hospital Operating Corp, Inc. NC | Healthcare & Social Assistance | 1 | $144,826 | — |
| The Moss Company NM | Transportation & Warehousing | 0 | — | F |
| The Most Group, Inc. IL | Information & Media | 3 | $143,742 | — |
| The Mothership Consulting and Events, LLC MI | Professional & Technical Services | 1 | $32,760 | — |
| The Motz Group OH | Construction | 0 | — | F |
| The Mount Desert Island Biological Laboratory ME | Professional & Technical Services | 2 | $306,000 | — |
| The Mount Sinai Community Foundation IL | Healthcare & Social Assistance | 6 | $282,500 | — |
| THE MOUNT VERNON LADIES ASSOCIATION OF THE UNION VA | Other Services | 0 | — | C |
| The Mountain Valley Spring Water Co-dBa Primo Water North America AK | Transportation & Warehousing | 0 | — | B |
| The MS Department of Corrections - MHM Health Professions, LLC MS | — | 0 | — | — |
| The Muffin Man, Inc SC | — | 0 | — | — |
| THE MUHLENBERG COUNTY COAL COMPANY KY | — | 0 | — | — |
| The Muirlands Corporation OR | Construction | 0 | — | F |
| The Mullan Contracting Company MD | Construction | 0 | — | A |
| The Mumford Companies WI | Manufacturing | 0 | — | F |
| The Munirs Company 691 CA | — | 0 | — | — |
| The Museum of Flight WA | Arts & Entertainment | 0 | — | A |
| The Museum of Modern Art NY | Arts & Entertainment | 7 | $79,602 | — |
| The Mutual Group IA | — | 0 | — | — |
| The Myron Stratton Home CO | Healthcare & Social Assistance | 0 | — | D |
| THE MYRTLES MS | Healthcare & Social Assistance | 0 | — | D |
| THE NANNY NETWORK, LLC DC | Administrative & Waste Services | 0 | — | A |
| THE NANNY NETWORK, LLC MD | Administrative & Waste Services | 0 | — | A |
| The Napa Communities Firewise Foundation CA | Other Services | 0 | — | A |
| The Naples Beach Hotel & Golf Club FL | — | 0 | — | — |
