| Submersible Pumps, Inc. (SPI) OK | Manufacturing | 0 | — | A |
| Subsea 7 US LLC TX | Mining & Extraction | 5 | $141,889 | — |
| Subsense, Inc. CA | Professional & Technical Services | 1 | $190,000 | — |
| Substack, Inc. CA | Information & Media | 2 | $102,086 | — |
| Substation Concrete Services SC | Construction | 0 | — | A |
| Substation Engineering Co. PA | Professional & Technical Services | 5 | $97,731 | — |
| Substation Solutions, LLC CA | Construction | 0 | — | A |
| Subsurface Construction Company, LLC NC | Construction | 0 | — | A |
| Subsurface Constructors, Inc. MO | Construction | 0 | — | A |
| SuBSurfco LLC SD | Construction | 0 | — | B |
| Subterranean Boring Inc CO | Mining & Extraction | 0 | — | A |
| Subterranean Construction, LLC LA | Construction | 0 | — | A |
| Subtle Medical, Inc. CA | Professional & Technical Services | 1 | $140,000 | — |
| Subudhi Consulting Group Inc. VA | Professional & Technical Services | 1 | $80,000 | — |
| Suburban Automotive Services OH | Wholesale Trade | 0 | — | A |
| Suburban Cabinet Shop OK | Manufacturing | 0 | — | F |
| Suburban Community Hospital PA | Healthcare & Social Assistance | 0 | — | F |
| Suburban Construction Services KY | Construction | 0 | — | A |
| Suburban Dental Laboratory Inc. CT | Manufacturing | 0 | — | A |
| SUBURBAN DISPOSAL CORPORATION NY | Administrative & Waste Services | 0 | — | F |
| Suburban Drywall WI | Construction | 0 | — | F |
| Suburban Enterprises Terrazzo & Tile Co., Inc. PA | Construction | 0 | — | D |
| Suburban Enterprises, Inc WI | Construction | 0 | — | D |
| SUBURBAN FORD OF WATERFORD MI | Retail Trade | 0 | — | A |
| Suburban Hospital, Inc. MD | Healthcare & Social Assistance | 1 | $70,659 | — |
| Suburban Industrial Packaging, Inc. MO | Wholesale Trade | 0 | — | A |
| Suburban Inn MI | Accommodation & Food Services | 0 | — | F |
| Suburban Inns MI | Accommodation & Food Services | 0 | — | F |
| Suburban Insulation Inc WI | Construction | 0 | — | F |
| Suburban Insulation, Inc. PA | Construction | 0 | — | F |
| Suburban Landscape Management KS | Administrative & Waste Services | 0 | — | F |
| Suburban Landscapes MI | Administrative & Waste Services | 0 | — | F |
| Suburban Lumber Company, Inc IA | Retail Trade | 0 | — | B |
| SUBURBAN MACHINE CORP IL | Manufacturing | 0 | — | F |
| Suburban Maintenance and Construction Inc. OH | Construction | 0 | — | F |
| Suburban Motors, Inc. dba Future Ford of Sacramento CA | — | 0 | — | — |
| Suburban Natural Gas co. OH | Utilities | 0 | — | F |
| Suburban Nursing LLC OH | Healthcare & Social Assistance | 0 | — | F |
| Suburban Propane, LP AK | Retail Trade | 0 | — | A |
| Suburban Propane, LP AL | Retail Trade | 0 | — | A |
| Suburban Propane, LP AR | Retail Trade | 0 | — | A |
| Suburban Propane, LP AZ | Retail Trade | 0 | — | D |
| Suburban Propane, LP CA | Retail Trade | 0 | — | C |
| Suburban Propane, LP CO | Retail Trade | 0 | — | D |
| Suburban Propane, LP CT | Retail Trade | 0 | — | F |
| Suburban Propane, LP DE | Retail Trade | 0 | — | A |
| Suburban Propane, LP FL | Retail Trade | 0 | — | C |
| Suburban Propane, LP GA | Retail Trade | 0 | — | C |
| Suburban Propane, LP ID | Retail Trade | 0 | — | A |
| Suburban Propane, LP IL | Retail Trade | 0 | — | F |