| Stoughton Hospital Association WI | Healthcare & Social Assistance | 0 | — | F |
| Stoughton Lumber Company WI | Wholesale Trade | 0 | — | A |
| Stoughton Public Schools MA | Educational Services | 1 | $81,652 | — |
| STOUGHTON STEEL COMPANY MA | Manufacturing | 0 | — | A |
| Stoughton Trailers LLC TX | Manufacturing | 0 | — | F |
| Stoughton Trailers LLC WI | Manufacturing | 0 | — | F |
| Stoughton Trucking WI | Transportation & Warehousing | 0 | — | F |
| Stouse OR | Manufacturing | 0 | — | F |
| Stouse LLC VT | Manufacturing | 0 | — | F |
| STOUT CONSTRUCTION LLC WI | Construction | 0 | — | A |
| Stout Industrial Technology CA | Manufacturing | 0 | — | F |
| Stout Management Company NV | Real Estate | 0 | — | F |
| Stout Risius Ross, LLC IL | Professional & Technical Services | 6 | $140,083 | — |
| Stout Street Capital Management LLC CO | Finance & Insurance | 1 | $57,616 | — |
| Stout Trucking Inc. NC | Transportation & Warehousing | 0 | — | A |
| STOUT TRUCKING LLC WI | Transportation & Warehousing | 0 | — | A |
| Stoutco Inc IN | Manufacturing | 0 | — | F |
| Stovall Construction Inc TX | Construction | 0 | — | F |
| Stovell AI Systems LLC CA | Professional & Technical Services | 1 | $318,750 | — |
| Stover Excavating, Inc. OH | Construction | 0 | — | F |
| Stow Hotel Associates Two, LLC OH | Accommodation & Food Services | 0 | — | F |
| Stow Hotel Associates, LLC OH | Accommodation & Food Services | 0 | — | A |
| Stow Lake Boat House CA | — | 0 | — | — |
| STOWASSER BUICK GMC CA | Retail Trade | 0 | — | A |
| Stowe Woodward LLC GA | Manufacturing | 0 | — | D |
| Stowe Woodward LLC LA | Manufacturing | 0 | — | B |
| Stowe Woodward LLC NH | Manufacturing | 0 | — | D |
| Stowe Woodward LLC WI | Manufacturing | 0 | — | D |
| Stowers Institute for Medical Research MO | Professional & Technical Services | 13 | $56,775 | — |
| Stowers Machinery Corporation TN | Other Services | 0 | — | B |
| Stoystown Auto Wreckers, LP PA | Retail Trade | 0 | — | A |
| STP PERFORMANCE COATING AZ | Construction | 0 | — | D |
| STP Products Manufacturing Company OH | — | 0 | — | — |
| STP Retail, LLC WY | Transportation & Warehousing | 0 | — | B |
| STR GA | Manufacturing | 0 | — | C |
| STR - Synthetic Turf Resources GA | Manufacturing | 0 | — | C |
| Str Constructors, Llc TX | Construction | 1 | $115,000 | — |
| Strac Incorporated WA | Information & Media | 1 | $140,000 | — |
| Stracener Brothers Construction Corporation AR | Construction | 0 | — | C |
| Strachan Apiaries CA | Agriculture & Forestry | 0 | — | C |
| Strack & Van Til IN | — | 0 | — | — |
| Strack, Inc. GA | Construction | 0 | — | A |
| Strad USA Inc. CO | Mining & Extraction | 0 | — | A |
| Strad USA Inc. PA | Mining & Extraction | 0 | — | A |
| Strada Services AL | Construction | 0 | — | F |
| Strada Services FL | Construction | 0 | — | F |
| Strada Services SC | Construction | 0 | — | F |
| Strada Services TN | Construction | 0 | — | F |
| Stradaji LLC OH | Professional & Technical Services | 1 | $75,000 | — |
| Strader's Garden Centers OH | Retail Trade | 0 | — | A |
