| Merchants Metals/Fencing Supply Group CA | Wholesale Trade | 0 | — | F |
| Merchants Metals/Fencing Supply Group NC | Manufacturing | 0 | — | A |
| Merchants Moving & Storage, Inc. TX | Manufacturing | 0 | — | F |
| Merchants Restaurant TN | — | 0 | — | — |
| Merchants Transfer Company AL | Transportation & Warehousing | 0 | — | A |
| Merchants Wholesale Grocer, Inc. AR | Wholesale Trade | 0 | — | A |
| MerchLogix, Inc. GA | Information & Media | 1 | $105,186 | — |
| MerchSource LLC CA | Wholesale Trade | 1 | $88,858 | — |
| Merci Merci Me, LLC FL | — | 0 | — | — |
| Mercier Electric Co., Inc. MA | Construction | 0 | — | A |
| Mercier Orchards GA | Agriculture & Forestry | 0 | — | B |
| Mercier's MD | — | 0 | — | — |
| Merck NJ | — | 0 | — | — |
| MERCK & CO INC., Varicella Bulk Manufacturing Facility NC | — | 0 | — | — |
| Merck & Co., Inc FL | — | 0 | — | — |
| Merck & Co., Inc. NC | — | 0 | — | — |
| Merck & Co., Inc. PA | — | 0 | — | — |
| Merck & Co., Inc. ("Merck"); Merck Sharp & Dohme Corp.; Acceleron Pharma Inc. ("Acceleron") MA | — | 0 | — | — |
| Merck & Co., Inc. (Sierra Therapeutics, Inc.) CA | — | 0 | — | — |
| Merck (Merck, Sharp and Dohme Corporation) NJ | — | 0 | — | — |
| Merck - Branchburg NJ | — | 0 | — | — |
| Merck and Co., Inc PA | Manufacturing | 0 | — | A |
| Merck and Co., Inc. DE | Manufacturing | 0 | — | C |
| Merck and Co., Inc. IA | Manufacturing | 0 | — | D |
| Merck and Co., Inc. KS | Manufacturing | 0 | — | C |
| Merck and Co., Inc. LA | Manufacturing | 0 | — | A |
| Merck and Co., Inc. MN | Manufacturing | 0 | — | F |
| Merck and Co., Inc. NC | Manufacturing | 0 | — | A |
| Merck and Co., Inc. NE | Wholesale Trade | 0 | — | A |
| Merck and Co., Inc. NJ | Manufacturing | 0 | — | A |
| Merck and Co., Inc. PR | Manufacturing | 0 | — | A |
| Merck and Co., Inc. VA | Manufacturing | 0 | — | A |
| Merck Animal Health NE | Construction | 0 | — | A |
| Merck KGaA IL | Manufacturing | 0 | — | C |
| Merck Research Laboratories Massachusetts, LLC NJ | Professional & Technical Services | 3 | $134,957 | — |
| Merck Sharp & Dohme Corp. CA | — | 0 | — | — |
| Merck Sharp & Dohme Corp. PA | — | 0 | — | — |
| Merck Sharp & Dohme LLC NC | — | 0 | — | — |
| Merck Sharp & Dohme LLC NJ | Professional & Technical Services | 69 | $130,305 | — |
| Mercor.io Corporation CA | Professional & Technical Services | 7 | $150,255 | — |
| Mercotac Inc. CA | Manufacturing | 0 | — | A |
| Mercuria Energy America, LLC TX | Finance & Insurance | 6 | $159,167 | — |
| Mercuria Investments US Inc. IN | Manufacturing | 0 | — | A |
| Mercurio's Heating & Air Conditioning WA | Construction | 0 | — | F |
| Mercury Air Cargo CA | — | 0 | — | — |
| Mercury Air Center - Birmingham, LLC AL | Transportation & Warehousing | 0 | — | A |
| Mercury Air Center - Burbank LLC CA | Transportation & Warehousing | 0 | — | C |
| Mercury Air Center - Charleston LLC SC | Transportation & Warehousing | 0 | — | A |
| Mercury Air Center - Los Angeles, Inc CA | Transportation & Warehousing | 0 | — | D |
| Mercury Air Center - Peach Tree-DeKalb LLC GA | Transportation & Warehousing | 0 | — | A |
