| Sinclair & Rush -Indepak OR | Manufacturing | 0 | — | F |
| Sinclair & Rush Inc. MO | Manufacturing | 0 | — | F |
| Sinclair & Sons, Inc. KS | Manufacturing | 0 | — | A |
| Sinclair Concrete CA | Construction | 0 | — | F |
| Sinclair Elevator Inc IA | Wholesale Trade | 0 | — | A |
| Sinclair Printing, a CJK Group, Inc. CA | — | 0 | — | — |
| Sinclair Printing, CJK Group, Inc. CA | — | 0 | — | — |
| Sinclair Systems INTL CA | Manufacturing | 0 | — | A |
| SINCLAIR SYSTEMS INTL LLC WA | Manufacturing | 0 | — | A |
| SINCLAIR TELEVISION GROUP, INC. MD | Information & Media | 1 | $122,100 | — |
| Sinclairville Volunteer Fire Company NY | Public Administration | 0 | — | A |
| Sinco, Inc. AR | Manufacturing | 0 | — | F |
| Sindall Transport Inc. PA | Transportation & Warehousing | 0 | — | B |
| Sine Trading International, LLC PA | Professional & Technical Services | 1 | $88,000 | — |
| Sineng Electric Inc TX | Utilities | 1 | $34,737 | — |
| Sines Construction Inc. ID | Construction | 0 | — | A |
| Sinfralogix LLC TX | Professional & Technical Services | 4 | $90,375 | — |
| Sinful Colors Inc. MD | — | 0 | — | — |
| Sing Street Broadway LLC NY | — | 0 | — | — |
| Sing Tao Newspapers New York Ltd. NY | Information & Media | 1 | $58,240 | — |
| Singer Equipment Company MA | Wholesale Trade | 0 | — | A |
| Singer Equipment Company MD | Wholesale Trade | 0 | — | B |
| Singer Equipment Company NC | Wholesale Trade | 0 | — | F |
| Singer Equipment Company NJ | Wholesale Trade | 0 | — | F |
| Singer Equipment Company PA | Wholesale Trade | 0 | — | D |
| Singer Farms LLC NY | Agriculture & Forestry | 0 | — | A |
| Singer Holdings NY | Retail Trade | 0 | — | B |
| Singer Island Health LLC FL | Healthcare & Social Assistance | 0 | — | A |
| Singer Vehicle Design CA | Other Services | 0 | — | F |
| SingerLewak LLP CA | Professional & Technical Services | 13 | $99,845 | — |
| Singh Family Ventures, LLC dba Home Instead Senior Care NJ | Healthcare & Social Assistance | 0 | — | F |
| SINGH MANAGEMENT CO., LLC. MI | Healthcare & Social Assistance | 0 | — | F |
| SINGH MANAGEMENT CO., LLC. NC | Healthcare & Social Assistance | 0 | — | F |
| SINGH MANAGEMENT CO., LLC. VA | Healthcare & Social Assistance | 0 | — | F |
| SINGH SENIOR LIVING, LLC NC | Healthcare & Social Assistance | 0 | — | F |
| Singing Hills Landscape, Inc. CO | Administrative & Waste Services | 0 | — | F |
| Singing River Electric Cooperative MS | Utilities | 0 | — | F |
| Singing River Health System MO | Healthcare & Social Assistance | 1 | $225,000 | — |
| Singing River Health System MS | Healthcare & Social Assistance | 4 | $419,672 | — |
| Single Eagle Inc CA | Construction | 0 | — | F |
| SINGLE SOURCE DISASTER RECOVERY SPECIALISTS INC RI | Construction | 0 | — | A |
| Single Source Logistics MD | Transportation & Warehousing | 0 | — | F |
| Single Source Security, LLC dba Protos Security OR | — | 0 | — | — |
| SinglePoint MA | Utilities | 0 | — | F |
| SinglePoint Care Network, LLC NY | — | 0 | — | — |
| SingleStore, Inc. CA | Professional & Technical Services | 8 | $183,935 | — |
| Singleton Construction LLC. OH | Construction | 0 | — | F |
| Singleton Electric Company MD | Construction | 0 | — | F |
| Singota Solutions IN | Manufacturing | 0 | — | A |
| SINGPOLI CAPITAL CORPORATION CA | Finance & Insurance | 1 | $94,058 | — |
