| Marmic Fire and Safety MO | Wholesale Trade | 0 | — | B |
| Marmol Radziner, An Architecture Corporation CA | Construction | 0 | — | F |
| Marmon Aerospace and Defense, LLC FL | Manufacturing | 0 | — | A |
| Marmon Aerospace and Defense, LLC NH | Manufacturing | 0 | — | F |
| Marmon Foodservice Technologies IL | Wholesale Trade | 0 | — | A |
| Marmon Foodservice Technologies TX | Transportation & Warehousing | 0 | — | A |
| Marmon Foodservice Technologies Cornelius, Inc. IL | — | 0 | — | — |
| Marmon Holdings AL | Manufacturing | 0 | — | F |
| Marmon Holdings GA | Manufacturing | 0 | — | A |
| Marmon Holdings IN | Manufacturing | 0 | — | F |
| Marmon Holdings UT | Manufacturing | 0 | — | F |
| Marmon Link MN | Wholesale Trade | 0 | — | B |
| MARMON RAILROAD SERVICES LLC IN | Construction | 0 | — | A |
| Marmon Renew Inc. IL | Manufacturing | 0 | — | A |
| Marmon Utility LLC CT | Manufacturing | 0 | — | F |
| Marmon Utility LLC NH | Manufacturing | 0 | — | F |
| Marmon-Herrington KY | Manufacturing | 0 | — | A |
| Marmon/Keystone IL | Wholesale Trade | 0 | — | C |
| Marmon/Keystone LLC GA | Wholesale Trade | 0 | — | B |
| Marmon/Keystone LLC PA | Wholesale Trade | 0 | — | C |
| MARN Enterprises CA | Retail Trade | 0 | — | B |
| Marne Construction CA | Construction | 0 | — | A |
| Marnoy Interests, Ltd. TX | Construction | 0 | — | A |
| Maroa MI | Agriculture & Forestry | 0 | — | C |
| Maroadi Transfer and Storage Inc. PA | Transportation & Warehousing | 0 | — | D |
| Marobo, LLC WI | — | 0 | — | — |
| Marois Brothers, Inc. MA | Construction | 0 | — | D |
| Maron Electric IL | Construction | 0 | — | F |
| Maronda, Inc. PA | Construction | 0 | — | B |
| Maroon Creek Club CO | Arts & Entertainment | 1 | $52,000 | — |
| Marosi Designs LLC, dba BVV IL | Manufacturing | 0 | — | F |
| Marotta Controls NJ | Manufacturing | 0 | — | B |
| Marotta Controls Inc & Subs MN | Manufacturing | 0 | — | A |
| MAROTTA CONTROLS INC & SUBS NJ | Manufacturing | 0 | — | B |
| Maroun Landscaping Inc NH | Administrative & Waste Services | 0 | — | F |
| Marous Brothers Construction Inc. OH | Construction | 1 | $67,500 | C |
| Marpac Inc NM | Manufacturing | 0 | — | A |
| Marpipe Inc. NY | Information & Media | 1 | $105,000 | — |
| Marqeta, Inc. CA | Finance & Insurance | 25 | $173,141 | — |
| Marqo Inc. CA | Professional & Technical Services | 2 | $180,000 | — |
| Marquardt Memorial Inc WI | Healthcare & Social Assistance | 0 | — | F |
| Marquardt Memorial Manor Inc WI | Healthcare & Social Assistance | 0 | — | F |
| Marquardt Memorial Manor, Inc. / Illuminus WI | Healthcare & Social Assistance | 0 | — | A |
| Marquardt Switches, Inc. MI | Manufacturing | 3 | $113,866 | A |
| Marquardt Switches, Inc. NY | Manufacturing | 0 | — | A |
| Marquee Asset Management LLC CA | Real Estate | 1 | $236,038 | — |
| Marquee Event Group, Inc. IL | — | 0 | — | — |
| Marquee technology Solutions Inc. MI | Professional & Technical Services | 5 | $104,574 | — |
| MARQUETTE MI | Healthcare & Social Assistance | 0 | — | F |
| Marquette Associates, Inc. IL | Finance & Insurance | 1 | $116,979 | — |
