| THE MARTIN-BROWER COMPANY,L.L.C. IL | Accommodation & Food Services | 4 | $1,681,299 | F |
| THE MARWIN COMPANY INC SC | Manufacturing | 0 | — | F |
| The Mary Imogene Bassett Hospital NY | Healthcare & Social Assistance | 13 | $316,260 | — |
| The Mary Lanning Memorial Hospital Association NE | Healthcare & Social Assistance | 2 | $72,103 | — |
| The Maryland Zoological Society, Inc MD | Arts & Entertainment | 0 | — | F |
| The Mason Inn - ARAMARK VA | — | 0 | — | — |
| The Masonic Home of Florida FL | Healthcare & Social Assistance | 0 | — | C |
| The Masonry VA | Real Estate | 0 | — | A |
| The Master Lock Company WI | Manufacturing | 0 | — | B |
| The Master Products Company OH | Manufacturing | 0 | — | F |
| The MathWorks, Inc. MA | Information & Media | 99 | $133,592 | — |
| The Matlen Silver Group, Inc. NJ | Administrative & Waste Services | 13 | $131,920 | — |
| The Matthews Corporation NY | Wholesale Trade | 0 | — | A |
| The Maxis Group AZ | Professional & Technical Services | 3 | $120,356 | — |
| The Maybourne Beverly Hills CA | Accommodation & Food Services | 0 | — | F |
| The Mayfair at Coconut Grove FL | — | 0 | — | — |
| The Mayflower at Winter Park FL | Healthcare & Social Assistance | 0 | — | F |
| The McCarty Corporation TX | Construction | 0 | — | C |
| The McClatchy Company, LLC (Kansas City Star) MO | — | 0 | — | — |
| The McClatchy Newspapers (The Sun Herald) MS | — | 0 | — | — |
| The McDonnel Group LLC LA | Construction | 0 | — | A |
| The Mcgraw-Hill Companies CA | — | 0 | — | — |
| The McGregor Foundation OH | Healthcare & Social Assistance | 0 | — | F |
| THE MCGUIRE GROUP INC NY | Healthcare & Social Assistance | 0 | — | F |
| The McHenry Dentist PC IL | Healthcare & Social Assistance | 1 | $142,501 | — |
| The McIntyre Company CA | Construction | 0 | — | F |
| The McKernon Group, Inc. VT | Construction | 0 | — | D |
| The McKnight Group OH | Administrative & Waste Services | 0 | — | A |
| The McPherson Companies, Inc. AL | Transportation & Warehousing | 0 | — | B |
| THE MEADOR BOYS EXPRESS INC IL | Transportation & Warehousing | 0 | — | C |
| The Meadows PA | — | 0 | — | — |
| The Meadows at Cypress Gardens FL | Healthcare & Social Assistance | 0 | — | A |
| The Meadows at Pottsville for Nursing and Rehabilitation, LLC PA | Healthcare & Social Assistance | 0 | — | F |
| The Meadows at Shannondell PA | Healthcare & Social Assistance | 0 | — | F |
| The Meadows Center for Nursing and Healing FL | Healthcare & Social Assistance | 0 | — | F |
| The Meadows Foundation TX | Other Services | 0 | — | A |
| The Meadows of Ashland LLC NE | Healthcare & Social Assistance | 0 | — | A |
| The Meadows of Napa Valley CA | Healthcare & Social Assistance | 0 | — | F |
| the Meanson Company, a Tecta America Company LLC DBA Vermont Roofing Company VT | Construction | 0 | — | A |
| The Meckenstock Group, Inc. KS | Finance & Insurance | 1 | $44,291 | — |
| The Medalcraft Ming, Inc. WI | Manufacturing | 0 | — | C |
| The Medical Center of Central Georgia, Inc. d/b/a Atrium Health Navicent The Medical Center GA | Healthcare & Social Assistance | 2 | $63,752 | — |
| The Medical Center of Southeast Texas TX | Healthcare & Social Assistance | 0 | — | D |
| The Medical Center, Inc. GA | Healthcare & Social Assistance | 1 | $60,320 | — |
| The Medicine Shoppe #1121 LA | Retail Trade | 0 | — | A |
| The Medicines Company NJ | — | 0 | — | — |
| The MedStar-Georgetown Medical Center, Inc. DC | Healthcare & Social Assistance | 2 | $99,112 | — |
| the Melanson company, a Tecta America Company LLC NH | Construction | 0 | — | F |
| The Melanson Company, a Tecta America Company LLC VT | Construction | 0 | — | F |
| the Melanson company, a Tecta America Company LLC Bow Divison NH | Construction | 0 | — | F |
