| Matheson Flight Extenders MO | Transportation & Warehousing | 0 | - | A |
| Matheson Flight Extenders MT | Transportation & Warehousing | 0 | - | F |
| Matheson Flight Extenders OR | - | 0 | - | - |
| Matheson Flight Extenders, Inc. CA | - | 0 | - | - |
| Matheson Flight Extenders, Inc. GA | - | 0 | - | - |
| Matheson Flight Extenders, Inc. MA | - | 0 | - | - |
| Matheson Flight Extenders, Inc. MD | - | 0 | - | - |
| Matheson Flight Extenders, Inc. PA | - | 0 | - | - |
| Matheson Flight Extenders, Inc. TX | - | 0 | - | - |
| Matheson Postal Services ID | - | 0 | - | - |
| Matheson Postal Services UT | - | 0 | - | - |
| Matheson Postal Services, Inc. CA | - | 0 | - | - |
| Matheson Trucking, Inc. CA | - | 0 | - | - |
| Mathew Enterprise Inc. dba Stevens Creek Chrysler Jeep Dodge CA | - | 0 | - | - |
| Mathew Enterprise Inc. dba Stoneridge Chrysler Jeep Dodge CA | - | 0 | - | - |
| Mathew Enterprise, Inc. dba Serramonte Subaru CA | - | 0 | - | - |
| Mathew Enterprise, Inc. dba Serramonte Volkswagon CA | - | 0 | - | - |
| Mathew Enterprises, Inc CA | Retail Trade | 0 | - | A |
| Mathews Archery, Inc WI | Manufacturing | 0 | - | F |
| Mathews Brothers Company ME | Manufacturing | 0 | - | C |
| Mathews Nielsen Landscape Architects PC NY | Professional & Technical Services | 3 | $85,896 | - |
| Mathis Brothers OK | - | 0 | - | - |
| Mathpix, Inc. NY | Professional & Technical Services | 1 | $225,000 | - |
| Mathy Construction Company WI | Construction | 0 | - | D |
| Mathy Machine, Inc. CA | - | 0 | - | - |
| Matic Robots, INC. CA | Manufacturing | 2 | $160,000 | - |
| Matica Biotechnology, Inc. TX | Professional & Technical Services | 1 | $87,651 | F |
| Matich Corporation CA | Construction | 0 | - | F |
| Matician, Inc. CA | Manufacturing | 1 | $175,000 | - |
| Matik, Inc. CA | Information & Media | 1 | $165,000 | - |
| Matikon America, Inc. MI | Manufacturing | 1 | $115,000 | - |
| Mativ WI | Manufacturing | 0 | - | D |
| Mativ Conwed, LLC NC | Manufacturing | 0 | - | C |
| Mativ Holdings Inc. GA | Manufacturing | 1 | $100,000 | - |
| Mativ Holdings LLC DE | Manufacturing | 0 | - | D |
| Matix Corporation of America TN | Manufacturing | 0 | - | F |
| Matlet/Group RI | - | 0 | - | - |
| Matonee Inc. CA | Professional & Technical Services | 4 | $276,327 | - |
| Matonee Inc. d/b/a Aptos Labs CA | Professional & Technical Services | 1 | $225,000 | - |
| Matrex, a Division of Leggett & Platt Components Company, Inc. COVID19 NC | - | 0 | - | - |
| Matriarch MN | - | 0 | - | - |
| Matrice.AI Inc. CA | Professional & Technical Services | 2 | $109,941 | - |
| Matrices AI Inc. CA | Professional & Technical Services | 1 | $250,000 | - |
| Matrix MD | - | 0 | - | - |
| Matrix Design Group, Inc. CO | Professional & Technical Services | 1 | $106,870 | - |
| Matrix Medical Network (Community Care Health Network, Inc.) NY | - | 0 | - | - |
| Matrix Medical Network (Votiva Health, LLC) NY | - | 0 | - | - |
| Matrix North American Construction IL | Construction | 0 | - | A |
| Matrix Payment Services LLC NJ | Professional & Technical Services | 1 | $117,000 | - |
| Matrix Personnel Solutions Inc NJ | Healthcare & Social Assistance | 0 | - | D |
