| 5-STAR Building Solutions LLC GA | Construction | 0 | — | A |
| 5-Star Delivery OH | Transportation & Warehousing | 0 | — | F |
| 5-Star Senior Living NJ | Healthcare & Social Assistance | 0 | — | A |
| 5-Star Transit LLC. OH | Transportation & Warehousing | 0 | — | A |
| 5.11 Tactical CA | Wholesale Trade | 0 | — | D |
| 50 Restaurant Group LLC d/b/a WD-50 NY | — | 0 | — | — |
| 502 W Grand Ave CA | — | 0 | — | — |
| 5021 - Halifax MA - Leasing MA | Construction | 0 | — | A |
| 503 Sutter Avenue, LLC NY | — | 0 | — | — |
| 505 GO INC. CA | Information & Media | 1 | $92,898 | — |
| 505 Logistics NM | Transportation & Warehousing | 0 | — | F |
| 505 Southwestern NM | — | 0 | — | — |
| 5061 Logistics TX | Transportation & Warehousing | 0 | — | F |
| 507 (Pub)lic House MN | — | 0 | — | — |
| 5071, Inc CO | Manufacturing | 0 | — | A |
| 51 Columbia Hotel Property LLC FL | Accommodation & Food Services | 0 | — | A |
| 510 GROVELAND LLC MN | Accommodation & Food Services | 0 | — | A |
| 510064146 DE | Wholesale Trade | 0 | — | A |
| 510064146 MD | Wholesale Trade | 0 | — | F |
| 510064146 NC | Wholesale Trade | 0 | — | A |
| 51012802 IL | Manufacturing | 0 | — | A |
| 513 Hotel Operating CO | — | 0 | — | — |
| 517210 VI | Information & Media | 0 | — | F |
| 518 Farming, Inc CA | Agriculture & Forestry | 0 | — | F |
| 5186 Route 365 Hospitality , LLC NY | Accommodation & Food Services | 0 | — | A |
| 51st ST. & 8th Ave Corp DBA Loews Coronado Bay Resort CA | — | 0 | — | — |
| 51st Street & 8th Avenue Corp - Loews Coronado Bay Resort CA | — | 0 | — | — |
| 5205 Limited Partnership dba Houston Communications TX | Information & Media | 0 | — | A |
| 520655624 MD | Retail Trade | 0 | — | F |
| 5271 Main Street Operating Company, LLC NY | Healthcare & Social Assistance | 0 | — | F |
| 5280 SOLUTIONS OK | Transportation & Warehousing | 0 | — | F |
| 53-0197906 DC | Public Administration | 0 | — | A |
| 530 Hospitality, LLC dba The Skylark NY | — | 0 | — | — |
| 5303773708 FL | Construction | 0 | — | F |
| 535 5th LLC CA | — | 0 | — | — |
| 5399 Prospect Rd. LLC, DBA Super Duper CA | — | 0 | — | — |
| 54 Realty LLC FL | Real Estate | 0 | — | A |
| 540.co, LLC VA | Professional & Technical Services | 0 | — | A |
| 5400 BBQ LLC MN | Accommodation & Food Services | 0 | — | F |
| 545 West 30th Street F & B Management, LLC dba Cedric's at the Shed NY | — | 0 | — | — |
| 5467 Great West LLC. WA | Transportation & Warehousing | 0 | — | A |
| 54D Online, LLC FL | Arts & Entertainment | 2 | $108,000 | — |
| 55 Washington Street LLC NY | Construction | 1 | $250,000 | — |
| 55 Wilton Road LLC NY | Agriculture & Forestry | 0 | — | A |
| 55-0787999 DE | Manufacturing | 0 | — | A |
| 551 Gibson Ave SNF, LLC CA | Healthcare & Social Assistance | 0 | — | F |
| 555 International IL | Manufacturing | 0 | — | A |
| 55th Street Hospitality Holdings, LLC dba The Ricky Fishbowl and PHD Terrace NY | — | 0 | — | — |
| 55th Street Hospitality Holdings, LLC dba The Ricky Fishbowl and PHD Terrace (Dream Midtown F&B) (NYC) NY | — | 0 | — | — |
| 55th Street Restaurant Operating LLC dba DIG NY | — | 0 | — | — |