| Mersing Group Limited (Boston Hotel Buckminster and Fenmore Grill) MA | — | 0 | — | — |
| Mersino Dewatering LLC MI | Construction | 0 | — | C |
| Mersino Trenching LLC MI | Construction | 0 | — | A |
| Mertek Solutions, Inc. NC | Manufacturing | 0 | — | A |
| Merts, LLC GA | Wholesale Trade | 0 | — | A |
| Mertz Engineering Company IA | Manufacturing | 0 | — | F |
| Mertz Manufacturing, Inc. OK | Manufacturing | 0 | — | F |
| Mervin Manufacturing Inc WA | Manufacturing | 0 | — | F |
| Mervis Industries IL | Wholesale Trade | 0 | — | B |
| Mervis Industries IN | Wholesale Trade | 0 | — | A |
| Mervis Metal Recovery IN | Wholesale Trade | 0 | — | F |
| Mervis Motors Inc IN | Retail Trade | 0 | — | A |
| Merwel Inc AZ | Professional & Technical Services | 1 | $164,400 | — |
| Merwick Care & Rehab NJ | Healthcare & Social Assistance | 0 | — | F |
| Merz Construction, Inc. CA | Construction | 0 | — | A |
| Merz North America, Inc. NC | Wholesale Trade | 0 | — | A |
| Merz North America, Inc. WI | Manufacturing | 0 | — | A |
| MES Delivery LLC OH | Transportation & Warehousing | 0 | — | D |
| Mesa - Sparks NV | Construction | 0 | — | C |
| Mesa Airlines KY | Transportation & Warehousing | 0 | — | C |
| Mesa Airlines NC | — | 0 | — | — |
| Mesa Airlines, Inc. AZ | Transportation & Warehousing | 1 | $233,397 | B |
| MESA ASSOCIATES, INC. AL | Professional & Technical Services | 3 | $95,454 | A |
| Mesa Associates, Inc. CA | Professional & Technical Services | 0 | — | A |
| Mesa Associates, Inc. CO | Professional & Technical Services | 0 | — | A |
| Mesa Associates, Inc. TN | Professional & Technical Services | 0 | — | A |
| Mesa Associates,Inc. SC | Professional & Technical Services | 0 | — | A |
| Mesa Beverage Co., Inc. CA | — | 0 | — | — |
| Mesa Custom Machining Corp AZ | Manufacturing | 0 | — | A |
| Mesa Design Associates, Inc. TX | Professional & Technical Services | 3 | $66,833 | — |
| Mesa Energy Systems, Inc. AZ | Construction | 0 | — | B |
| Mesa Energy Systems, Inc. CA | Construction | 0 | — | B |
| Mesa Energy Systems, Inc. NV | Construction | 0 | — | C |
| Mesa Environmental Services Inc CA | Administrative & Waste Services | 0 | — | A |
| Mesa Equipment & Supply Company NM | Wholesale Trade | 0 | — | A |
| MESA EQUIPMENT CO INC TX | Construction | 0 | — | F |
| Mesa Farmers Cooperative Inc. NM | Agriculture & Forestry | 0 | — | A |
| Mesa Fully Formed, LLC AZ | Manufacturing | 0 | — | F |
| Mesa Golfland Ltd. AZ | Arts & Entertainment | 0 | — | A |
| Mesa Harvesting Company CA | Agriculture & Forestry | 0 | — | A |
| Mesa Hotel Operating Co LLC AZ | Administrative & Waste Services | 0 | — | D |
| MESA Industrial LLC TX | Construction | 0 | — | A |
| Mesa Industries, Inc. OH | Manufacturing | 0 | — | A |
| Mesa Mechanical, Inc. TX | Construction | 0 | — | F |
| Mesa Pizza MN | — | 0 | — | — |
| MESA Products, Inc. OK | Manufacturing | 0 | — | B |
| Mesa Rim Climbing & Fitness Center CA | — | 0 | — | — |
| Mesa Rim Climbing Centers CA | Arts & Entertainment | 0 | — | A |
| Mesa Rim Climbing Centers NV | Arts & Entertainment | 0 | — | A |
| Mesa Rim Climbing Centers TX | Arts & Entertainment | 0 | — | F |
