| Matikon America, Inc. MI | Manufacturing | 1 | $115,000 | — |
| Mativ CA | Manufacturing | 0 | — | F |
| 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 |
| Mativ-Greenfield MA | Manufacturing | 0 | — | C |
| Matix Corporation of America TN | Manufacturing | 0 | — | F |
| Matlab, Inc. NC | Manufacturing | 0 | — | A |
| Matlet/Group RI | — | 0 | — | — |
| Matlock Mechanical, LLC. TN | Construction | 0 | — | A |
| Matonee Inc. CA | Professional & Technical Services | 4 | $276,327 | — |
| Matonee Inc. d/b/a Aptos Labs CA | Professional & Technical Services | 1 | $225,000 | — |
| Matos Builders MD | Construction | 0 | — | A |
| Matos Dairy CA | Agriculture & Forestry | 0 | — | A |
| Matouk Textile Works, Inc. MA | Manufacturing | 0 | — | B |
| Matrex, a division of Leggett & Platt Components Company, Inc. NC | Manufacturing | 0 | — | F |
| Matrex, a Division of Leggett & Platt Components Company, Inc. COVID19 NC | — | 0 | — | — |
| Matriarch MN | — | 0 | — | — |
| Matric PA | Manufacturing | 0 | — | A |
| Matrice.AI Inc. CA | Professional & Technical Services | 2 | $109,941 | — |
| Matrices AI Inc. CA | Professional & Technical Services | 1 | $250,000 | — |
| Matrivax Research and Development Corporation MA | Manufacturing | 0 | — | A |
| MATRIX MD | — | 0 | — | — |
| Matrix Construction Services, LLC NJ | Construction | 0 | — | A |
| Matrix Design Group, Inc. CO | Professional & Technical Services | 1 | $106,870 | — |
| Matrix Design LLC IL | Professional & Technical Services | 0 | — | F |
| Matrix Engineering LLC IL | Construction | 0 | — | A |
| Matrix Environmental Inc. CA | Construction | 0 | — | F |
| Matrix Forming Inc. CA | Construction | 0 | — | A |
| Matrix Holdings LLC IL | Construction | 0 | — | F |
| Matrix International, Inc VA | Professional & Technical Services | 0 | — | A |
| Matrix Label Systems, Inc. IN | Manufacturing | 0 | — | D |
| Matrix Mechanical Solutions, LLC TN | Construction | 0 | — | A |
| Matrix Medical Network (Community Care Health Network, Inc.) NY | — | 0 | — | — |
| Matrix Medical Network (Votiva Health, LLC) NY | — | 0 | — | — |
| Matrix New World Engineering, Land Surveying and Landscape Architecture, P.C AZ | Administrative & Waste Services | 0 | — | A |
| Matrix New World Engineering, Land Surveying and Landscape Architecture, P.C LA | Administrative & Waste Services | 0 | — | A |
| Matrix New World Engineering, Land Surveying and Landscape Architecture, P.C NJ | Administrative & Waste Services | 0 | — | A |
| Matrix New World Engineering, Land Surveying and Landscape Architecture, P.C NY | Administrative & Waste Services | 0 | — | A |
| Matrix North American Construction IL | Construction | 0 | — | A |
| Matrix Payment Services LLC NJ | Professional & Technical Services | 1 | $117,000 | — |
| Matrix PDM Engineering, Inc. OK | Professional & Technical Services | 0 | — | A |
| Matrix Personnel Solutions Inc NJ | Healthcare & Social Assistance | 0 | — | D |
| Matrix Plastic Products, Inc. IL | Manufacturing | 0 | — | C |
| Matrix Power Services, Inc. RI | Construction | 0 | — | A |
| MATRIX PRECISE, INC. CA | Professional & Technical Services | 6 | $148,377 | — |
| MATRIX PROVIDERS INC CO | Healthcare & Social Assistance | 0 | — | A |
| Matrix Racquet Club, LLC AR | Arts & Entertainment | 1 | $65,645 | — |
| Matrix Realty Inc NJ | Real Estate | 0 | — | A |
