| Long Life Treated Wood, Inc. MD | Manufacturing | 0 | — | F |
| Long Milk Haulers, Inc NY | Transportation & Warehousing | 0 | — | A |
| Long Motor Corporation KS | Wholesale Trade | 0 | — | F |
| Long Oil Heat Inc NY | Retail Trade | 0 | — | C |
| Long Point Development, llc dba Terranea Resort CA | Accommodation & Food Services | 0 | — | F |
| Long Prairie Packing MN | Manufacturing | 0 | — | F |
| Long Prairie Health Care Center MN | Healthcare & Social Assistance | 0 | — | F |
| Long Ridge Energy Generation OH | Utilities | 0 | — | A |
| Long S Gin TX | Agriculture & Forestry | 0 | — | A |
| Long Shot Pistol and Rifle NJ | Arts & Entertainment | 0 | — | A |
| Long Term Acute Care Hospital Mosaic Life Care at St. Joseph MO | Healthcare & Social Assistance | 0 | — | D |
| Long Term Care Management MS | Healthcare & Social Assistance | 0 | — | F |
| Long Term Medical Supply Corporation IA | Retail Trade | 0 | — | C |
| Long Term Strategic Equity Partners, LLC MD | Construction | 0 | — | B |
| Long Valley Health Center CA | Healthcare & Social Assistance | 0 | — | F |
| Long-Lewis Ford of Florence AL | Retail Trade | 0 | — | A |
| Long-Lewis Ford of the Shoals, Inc. AL | Retail Trade | 0 | — | A |
| Longacre's Modern Dairy, Inc PA | Manufacturing | 0 | — | A |
| Longboard Pharmaceuticals, Inc. CA | Manufacturing | 1 | $157,435 | — |
| LONGBOW INDUSTRIES CO | Construction | 0 | — | A |
| Longboy Inc CA | Agriculture & Forestry | 0 | — | A |
| Longbridge Financial, LLC NC | Professional & Technical Services | 0 | — | A |
| Longbridge Financial, LLC NJ | Professional & Technical Services | 0 | — | A |
| Longbridge Financial, LLC TX | Professional & Technical Services | 0 | — | A |
| Longcap Lamson Products MA | Manufacturing | 0 | — | A |
| Longchamp USA CA | Retail Trade | 0 | — | A |
| Longchamp USA DC | Retail Trade | 0 | — | A |
| Longchamp USA FL | Retail Trade | 0 | — | A |
| Longchamp USA HI | Retail Trade | 0 | — | A |
| Longchamp USA IL | Retail Trade | 0 | — | A |
| Longchamp USA MA | Retail Trade | 0 | — | A |
| Longchamp USA NV | Retail Trade | 0 | — | A |
| Longchamp USA NY | Retail Trade | 0 | — | B |
| Longchamp USA TX | Retail Trade | 0 | — | A |
| Longchamps Electric NH | Construction | 0 | — | F |
| LONGENECKER'S HARDWARE COMPANY PA | Retail Trade | 0 | — | A |
| Longevity Escape Velocity Foundation CA | Other Services | 1 | $72,000 | — |
| Longevity Health Services LLC NY | Healthcare & Social Assistance | 0 | — | A |
| Longevity Holdings, Inc. MN | Finance & Insurance | 2 | $104,750 | A |
| Longfellow Real Estate Partners CA | Real Estate | 0 | — | A |
| Longfellow Real Estate Partners MA | Real Estate | 0 | — | A |
| Longfellow Real Estate Partners NC | Real Estate | 0 | — | A |
| Longfellow's Greenhouses ME | Agriculture & Forestry | 0 | — | B |
| Longform LLC WI | Accommodation & Food Services | 0 | — | A |
| Longhini Sausage CT | Manufacturing | 0 | — | A |
| Longhorn DSP LLC TX | Transportation & Warehousing | 0 | — | A |
| Longhorn Excavators, Inc. TX | Construction | 0 | — | F |
| Longhorn Fabrication & Design, Inc. TX | Manufacturing | 0 | — | F |
| Longhorn Inc. TX | Wholesale Trade | 0 | — | D |
| Longhorn Insulation, Inc. TX | Construction | 0 | — | C |
