| Mt Lake Pool & Patio PA | Retail Trade | 0 | — | A |
| MT LAUREL LLC NJ | Accommodation & Food Services | 0 | — | A |
| Mt Laurel Supermarket Inc. NJ | Retail Trade | 0 | — | A |
| Mt Lodge, LLC WY | Healthcare & Social Assistance | 0 | — | F |
| MT Medical Transport INC. FL | Healthcare & Social Assistance | 0 | — | F |
| MT Medical Transport INC. SC | Healthcare & Social Assistance | 0 | — | F |
| Mt Ogden Health and Rehabilitation Center UT | Healthcare & Social Assistance | 0 | — | F |
| Mt Pleasant Dermatology SC | Healthcare & Social Assistance | 0 | — | A |
| Mt Pleasant Discovery Museum MI | Arts & Entertainment | 0 | — | F |
| Mt Pleasant III Enterprises LLC TX | Healthcare & Social Assistance | 0 | — | F |
| Mt Pleasant Investors MI | Retail Trade | 0 | — | D |
| Mt Pleasant V Enterprises TX | Healthcare & Social Assistance | 0 | — | F |
| Mt Savage Specialty Refractories MD | Manufacturing | 0 | — | A |
| MT Systems, Inc. OH | Manufacturing | 0 | — | A |
| MT Transportation Logistics Services Inc. NY | — | 0 | — | — |
| Mt Vernon Mills GA | Manufacturing | 0 | — | B |
| MT VIEW FARMING INC CA | Agriculture & Forestry | 0 | — | A |
| MT&M Gaming Inc WA | Arts & Entertainment | 0 | — | C |
| MT&M; dba New Phoenix Casino WA | Arts & Entertainment | 0 | — | D |
| Mt. Airy Tire & Automotive, Inc. NC | Retail Trade | 0 | — | C |
| Mt. Bachelor Assisted Living and Memory Care OR | Healthcare & Social Assistance | 0 | — | F |
| Mt. Bachelor Memory Care OR | Healthcare & Social Assistance | 0 | — | F |
| Mt. Bachelor Sports Education Foundation OR | Arts & Entertainment | 0 | — | F |
| Mt. Bethel Management Company NJ | Healthcare & Social Assistance | 0 | — | F |
| Mt. Carmel Public Utiility Co. IL | Utilities | 0 | — | F |
| Mt. Carmel Stabilization Group, Inc IL | Construction | 0 | — | B |
| Mt. Clifton Fruit Company, LLC VA | Agriculture & Forestry | 0 | — | F |
| Mt. Cuba Center DE | Arts & Entertainment | 0 | — | C |
| Mt. Diablo Unified School District CA | Educational Services | 4 | $92,446 | — |
| Mt. Eaton Pallet, LTd. OH | Manufacturing | 0 | — | A |
| Mt. Holly Springs Specialty Paper, Inc. PA | Manufacturing | 0 | — | F |
| Mt. Hood Hospice OR | Healthcare & Social Assistance | 0 | — | F |
| Mt. Hood Management OR | Administrative & Waste Services | 0 | — | F |
| Mt. Hood Meadows, OREG., LLC. OR | Arts & Entertainment | 1 | $58,522 | — |
| Mt. Hood Skibowl, LLC. OR | Arts & Entertainment | 0 | — | D |
| Mt. Hope Fence, LLC OH | Retail Trade | 0 | — | A |
| Mt. Hope-Funks Grove FPD IL | Public Administration | 0 | — | A |
| Mt. Lassen Seafood Processors, LLC CA | Manufacturing | 0 | — | F |
| Mt. Lassen Trout Farms, Inc. CA | Agriculture & Forestry | 0 | — | F |
| Mt. Morris Fire Protection District IL | Public Administration | 0 | — | A |
| Mt. Olympus Enterprises Inc WI | Arts & Entertainment | 0 | — | A |
| Mt. Olympus Resorts LLC WI | Accommodation & Food Services | 0 | — | A |
| Mt. Parnell Fisheries Co. PA | Agriculture & Forestry | 0 | — | D |
| Mt. Pleasant Health and Rehab TN | Healthcare & Social Assistance | 0 | — | A |
| Mt. Pleasant RIO Holdings, LLC SC | Accommodation & Food Services | 0 | — | F |
| Mt. Pleasant Transfer Inc. TN | Transportation & Warehousing | 0 | — | F |
| Mt. Pulaski Rural Fire Protection District IL | Public Administration | 0 | — | A |
| Mt. San Antonio Gardens CA | Healthcare & Social Assistance | 0 | — | F |
| Mt. Savage Specialty Refractories Company MD | Manufacturing | 0 | — | A |
| Mt. Savage Specialty Refractories Company PA | Manufacturing | 0 | — | A |
