| MeBe Virginia LLC CA | Healthcare & Social Assistance | 0 | — | A |
| Mebhaz Inc. TX | Professional & Technical Services | 6 | $94,496 | — |
| MEC MI | Manufacturing | 0 | — | A |
| MEC Construction, LLC PA | Mining & Extraction | 0 | — | A |
| MEC Cryo, LLC. FL | Manufacturing | 0 | — | A |
| MEC Electrical Contractors Inc MA | Construction | 0 | — | F |
| MEC Energy Services, LLC. IL | — | 0 | — | — |
| MEC Engineering, PSC PR | Professional & Technical Services | 0 | — | A |
| MEC Enterprises Inc Financial Building Services FL | Construction | 0 | — | A |
| MEC Enterprises Inc Financial Building Services NC | Construction | 0 | — | A |
| MEC Enterprises Inc Financial Building Services TX | Construction | 0 | — | A |
| MEC Enterprises of Ocala LLC FL | Construction | 0 | — | A |
| MEC Personnel Consultants MI | Administrative & Waste Services | 0 | — | F |
| MEC, Inc CA | Administrative & Waste Services | 0 | — | F |
| MEC, Inc. dba MEC Environmental, Inc. CA | Administrative & Waste Services | 0 | — | F |
| MECA Electronics Inc. NJ | Manufacturing | 0 | — | A |
| Meca Solutions, LLC a Division of Precision Roll Solutions WI | Manufacturing | 0 | — | C |
| Mecaer Aviation Group, Inc PA | Transportation & Warehousing | 0 | — | C |
| Mecc. Contracting Inc NY | Construction | 0 | — | F |
| Meccon Industries Inc. IL | Construction | 0 | — | A |
| Mech-Tronics IL | Manufacturing | 0 | — | F |
| MECH-TRONICS, LIMITED PARTNERSHIP - 0141484 IL | Manufacturing | 0 | — | F |
| Mechanic Store Inc NJ | Retail Trade | 1 | $95,680 | — |
| Mechanical & Industrial Steel Services, Inc. IL | Construction | 0 | — | A |
| Mechanical Comfort, Inc. IA | Construction | 0 | — | F |
| Mechanical Concepts LLC LA | Construction | 0 | — | A |
| Mechanical Construction & Consulting, Inc, AK | Construction | 0 | — | F |
| Mechanical Construction Services Inc., AR | Construction | 0 | — | B |
| Mechanical Contractors Inc NC | Construction | 0 | — | A |
| Mechanical Design Systems, Inc. MD | Construction | 0 | — | A |
| MECHANICAL DEVICES COMPANY IL | Manufacturing | 0 | — | F |
| Mechanical Dynamics & Analysis MO | Other Services | 0 | — | A |
| Mechanical Dynamics & Analysis NY | Other Services | 0 | — | A |
| Mechanical Dynamics & Analysis OH | Manufacturing | 0 | — | A |
| Mechanical Dynamics & Analysis - Power Generation Services, LLC ND | Other Services | 0 | — | A |
| Mechanical Dynamics & Analysis, LLC TX | Other Services | 0 | — | A |
| Mechanical Dynamics and Analysis NY | Manufacturing | 0 | — | A |
| Mechanical Dynamics and Analysis OH | Other Services | 0 | — | A |
| MECHANICAL ELECTRICAL AND PLUMBING PARTNERS, LLC VA | Construction | 0 | — | D |
| MECHANICAL ENERGY SOLUTIONS, LLC NY | Professional & Technical Services | 1 | $138,000 | — |
| Mechanical Engineering & Construction Corporation MD | Construction | 0 | — | F |
| Mechanical Engineering and Construction Corporation VA | Construction | 0 | — | F |
| Mechanical Equipment Company NC | Construction | 0 | — | A |
| Mechanical Equipment Company, Inc. (MECO) LA | Manufacturing | 0 | — | A |
| Mechanical Insulation & Technologies, LLC FL | Construction | 0 | — | A |
| Mechanical Man, Inc. IN | Construction | 0 | — | A |
| Mechanical One LLC FL | Construction | 0 | — | F |
| Mechanical Partners, Inc. TX | Construction | 0 | — | F |
| Mechanical Plumbing & Heating, Inc CT | Construction | 0 | — | D |
| Mechanical Plumbing and Heating Inc IL | Construction | 0 | — | A |
