| Madison Suburban Utility District TN | Construction | 0 | — | F |
| Madison Turf Farms OK | Administrative & Waste Services | 0 | — | A |
| Madison Veterinary Specialists SC WI | Professional & Technical Services | 1 | $124,000 | — |
| Madison Village Manor, Inc. OH | Healthcare & Social Assistance | 0 | — | A |
| Madison Wellness & Rehabilitation IA | — | 0 | — | — |
| Madison Wood Preservers, Inc VA | Manufacturing | 0 | — | F |
| Madison York, Rego Park NY | Healthcare & Social Assistance | 0 | — | F |
| MADISON-DAVIS LLC NY | Administrative & Waste Services | 2 | $102,866 | — |
| Madison-H Inc. WI | Retail Trade | 0 | — | A |
| Madisonville Health And Rehabilitation KY | Healthcare & Social Assistance | 0 | — | F |
| Madisonville III Enterprises TX | Healthcare & Social Assistance | 0 | — | F |
| Madix Inc AL | Manufacturing | 0 | — | D |
| Madix Inc. TX | Manufacturing | 0 | — | B |
| MADK, LP dba Sonic Drive In PA | — | 0 | — | — |
| madohealthcare.com IL | Administrative & Waste Services | 0 | — | A |
| Madonna Manor KY | Healthcare & Social Assistance | 0 | — | A |
| Madonna Manor Inc. MA | Healthcare & Social Assistance | 0 | — | F |
| Madonna Rehabilitation Hospital NE | Healthcare & Social Assistance | 0 | — | F |
| Madonna Towers of Rochester MN | Healthcare & Social Assistance | 0 | — | F |
| Madpro of madison WI | Accommodation & Food Services | 0 | — | A |
| Madras Farms Co. OR | Agriculture & Forestry | 0 | — | D |
| Madre! Oaxacan Restaurant and Mezcaleria CA | — | 0 | — | — |
| Madrid Engineering FL | Professional & Technical Services | 0 | — | A |
| Madrid Home IA | Healthcare & Social Assistance | 0 | — | F |
| Madrigal Elektromotor, LLC VA | Transportation & Warehousing | 0 | — | F |
| MADRONA HILLS OR | Healthcare & Social Assistance | 0 | — | A |
| Madrona Hotel LP CA | Accommodation & Food Services | 0 | — | A |
| Madrona Venture Group LLC WA | Finance & Insurance | 1 | $185,000 | — |
| Madrone CA | Construction | 0 | — | F |
| Madrone Hospice, Inc CA | Healthcare & Social Assistance | 0 | — | F |
| Madruga Iron Works, Inc CA | Manufacturing | 0 | — | F |
| Madsen Construction, Inc. WY | Construction | 0 | — | A |
| Madsen Fixture & Millwork, Inc MN | Manufacturing | 0 | — | F |
| Madsen Machine Company LLC AL | Manufacturing | 0 | — | A |
| Madsen Products Inc CA | Manufacturing | 0 | — | F |
| Madsen Steel Wire Products IN | Construction | 0 | — | A |
| Madsen Steel Wire Products MI | Manufacturing | 0 | — | A |
| MadTree Alcove, LLC OH | Accommodation & Food Services | 0 | — | F |
| MadTree Brewing, LLC OH | Manufacturing | 0 | — | A |
| MAE Consulting Group, LLC NH | Professional & Technical Services | 1 | $90,000 | — |
| MAE Engineered Products, LLC MO | Manufacturing | 0 | — | A |
| MAE-Eitel, Inc. PA | Manufacturing | 0 | — | F |
| MaeFlower Logistics LLC CA | Transportation & Warehousing | 0 | — | D |
| Maehal Enterprises Inc. dba Pikes Peak Harley-Davidson CO | Retail Trade | 0 | — | C |
| Maejstic Marble and Glass Company NC | Manufacturing | 0 | — | A |
| Maersk CA | Transportation & Warehousing | 0 | — | B |
| Maersk FL | Transportation & Warehousing | 0 | — | A |
| Maersk GA | Transportation & Warehousing | 0 | — | B |
| Maersk IL | Transportation & Warehousing | 0 | — | B |
| Maersk LA | Transportation & Warehousing | 0 | — | C |
