| Martin Livestock LLC CA | Agriculture & Forestry | 0 | — | F |
| Martin Livestock LLC of California OR | Agriculture & Forestry | 0 | — | A |
| Martin Lubricants AR | Manufacturing | 0 | — | C |
| Martin Luther College MN | Educational Services | 0 | — | C |
| Martin Luther King Multi - Service Center Indianapolis Incorporated IN | Healthcare & Social Assistance | 0 | — | A |
| Martin Luther School NY | Educational Services | 2 | $39,000 | — |
| Martin Machine and Welding Inc KS | Manufacturing | 0 | — | A |
| MARTIN MACHINE WORKS TN | Manufacturing | 0 | — | A |
| Martin Marietta Materials Inc. AR | Management of Companies | 0 | — | A |
| Martin Marietta Materials Inc. AZ | Manufacturing | 0 | — | A |
| Martin Marietta Materials Inc. CA | Construction | 0 | — | A |
| Martin Marietta Materials Inc. CO | Manufacturing | 0 | — | A |
| Martin Marietta Materials Inc. GA | Mining & Extraction | 0 | — | A |
| Martin Marietta Materials Inc. IA | Management of Companies | 0 | — | A |
| Martin Marietta Materials Inc. IN | Management of Companies | 0 | — | A |
| Martin Marietta Materials Inc. MD | Manufacturing | 0 | — | A |
| Martin Marietta Materials Inc. MI | Manufacturing | 0 | — | B |
| Martin Marietta Materials Inc. OH | Management of Companies | 0 | — | A |
| Martin Marietta Materials Inc. TX | Manufacturing | 0 | — | A |
| Martin Marietta Materials, Inc. NC | Management of Companies | 3 | $99,298 | A |
| Martin Martin Renovations, Inc. dba Bath Fitter NC | Construction | 0 | — | A |
| Martin Mechanical IN | Construction | 0 | — | C |
| Martin Mechanical Contractors GA | Construction | 0 | — | F |
| Martin Mechanical Inc MO | Construction | 0 | — | A |
| Martin Memorial Health Systems, Inc. FL | Healthcare & Social Assistance | 0 | — | F |
| Martin Metal LLC MO | Construction | 0 | — | F |
| Martin Mills LA | — | 0 | — | — |
| Martin Mills/Fruit of the Loom MS | — | 0 | — | — |
| Martin Motor Sports LLC MI | Manufacturing | 0 | — | A |
| Martin Motor Sports LLC OH | Manufacturing | 0 | — | F |
| MARTIN OCHOA CA | Agriculture & Forestry | 0 | — | A |
| Martin Operating Partnership AR | Manufacturing | 0 | — | A |
| Martin Operating Partnership TX | Wholesale Trade | 0 | — | B |
| Martin Operating Partnership L.P. MO | Manufacturing | 0 | — | D |
| Martin Painting & Coating Co. OH | Construction | 1 | $101,452 | A |
| Martin Pallet, Inc. OH | Manufacturing | 0 | — | C |
| Martin Partitions OH | Manufacturing | 0 | — | F |
| Martin Paving Company, Inc. TN | Construction | 0 | — | A |
| Martin Paving Inc PA | Construction | 0 | — | F |
| Martin Property Construction, LLC FL | Construction | 0 | — | F |
| Martin Ranch CA | Agriculture & Forestry | 0 | — | A |
| Martin Roofing Co., Inc. CA | Construction | 0 | — | F |
| Martin Roofing Co., Inc. KS | Construction | 0 | — | A |
| Martin Rubber AZ | Manufacturing | 0 | — | A |
| Martin Rubber Corporation CA | — | 0 | — | — |
| Martin Sheet Metal Inc / Martin Cab OH | Manufacturing | 0 | — | A |
| Martin Specialty Coatings, Llc. LA | Construction | 0 | — | A |
| Martin Sprocket & Gear INC. AR | Manufacturing | 0 | — | F |
| Martin Sprocket & Gear INC. CA | Manufacturing | 0 | — | C |
| Martin Sprocket & Gear INC. FL | Manufacturing | 0 | — | A |
