| Siouxland Machine, Inc IA | Manufacturing | 0 | - | F |
| Sip MFG LLC CA | Manufacturing | 0 | - | F |
| SIP OperationsCo, LP NY | Finance & Insurance | 1 | $175,000 | - |
| Sip.US LLC GA | Information & Media | 1 | $81,000 | - |
| Siphox INC MA | Manufacturing | 1 | $148,100 | - |
| Sippel Co., Inc. dba Sippel Steel Fab PA | Manufacturing | 0 | - | C |
| Siptek Group INC OH | Professional & Technical Services | 2 | $108,200 | - |
| SIRA Consulting Inc. TX | Professional & Technical Services | 15 | $97,971 | - |
| Sira Soft Solutions Inc CA | Professional & Technical Services | 4 | $117,167 | - |
| Sirata Beach Resort and Conference Center FL | - | 0 | - | - |
| SirenOpt Inc. CA | Professional & Technical Services | 1 | $110,000 | - |
| Siri and Son Farms, Inc. OR | Agriculture & Forestry | 0 | - | D |
| Siri Consultancy Services, Inc. IA | Professional & Technical Services | 18 | $97,373 | - |
| Siri Data Analytics, LLC. TX | Professional & Technical Services | 5 | $84,032 | - |
| Siri Heights LLC NJ | Professional & Technical Services | 1 | $83,533 | - |
| Siri Infosolutions INC. NJ | Professional & Technical Services | 19 | $101,876 | - |
| Siri Software Solutions LLC NJ | Professional & Technical Services | 10 | $90,395 | - |
| Siri Technologies LLC IL | Professional & Technical Services | 4 | - | - |
| Sirianni Hardwoods, Inc. NY | Manufacturing | 0 | - | F |
| Siritechsolutions CORP FL | Professional & Technical Services | 1 | $78,000 | - |
| Siritechsolutions CORP SC | Professional & Technical Services | 1 | $78,000 | - |
| Siritek INC IL | Professional & Technical Services | 12 | $99,814 | - |
| Sirius America Insurance Company and Sirius Global Services LLC NY | - | 0 | - | - |
| Sirius Controls Inc. TX | Mining & Extraction | 1 | $90,438 | - |
| Sirius Global Services LLC NY | Finance & Insurance | 5 | $166,567 | - |
| Sirius Healthcare, LLC FL | Healthcare & Social Assistance | 2 | $53,893 | - |
| Sirius Xm Radio LLC NY | Information & Media | 67 | $143,996 | - |
| Sirna & Sons Produce OH | Wholesale Trade | 0 | - | C |
| Sirona Medical, Inc. CA | Professional & Technical Services | 3 | $141,504 | - |
| Sirrus Software Services Inc FL | Professional & Technical Services | 24 | $72,881 | - |
| Sirsidynix AL | - | 0 | - | - |
| SIRTech LLC VA | Professional & Technical Services | 2 | $132,080 | - |
| SIS Inc - Facebook Site OR | - | 0 | - | - |
| Sis LLC GA | Professional & Technical Services | 2 | $156,050 | - |
| Sisca Construction Services LLC FL | Construction | 1 | $119,912 | - |
| Sisecam Chemicals Wyoming LLC GA | Mining & Extraction | 1 | $151,148 | - |
| Sisense, Inc. NY | Information & Media | 1 | $160,000 | - |
| Siskin Children's Institute TN | - | 0 | - | - |
| Siskin Steel & Supply TN | Wholesale Trade | 0 | - | B |
| Siskiyou Hospital CA | Healthcare & Social Assistance | 4 | $126,360 | - |
| Sismos Solutions, INC. KS | Professional & Technical Services | 11 | $108,203 | - |
| Sissync Marketing Group, LLC SC | Professional & Technical Services | 1 | $86,798 | - |
| Sistah Co-Op MN | - | 0 | - | - |
| Sistema Universitario Ana G Mendez, Inc. PR | Educational Services | 2 | $187,874 | F |
| Sistema Universitario Ana G. Mendez, Inc. PR | Educational Services | 4 | $147,814 | - |
| Sister Emmanuel Hospital FL | - | 0 | - | - |
| Sister Mary of Presentation ND | Healthcare & Social Assistance | 1 | $65,603 | - |
| Sisters of Charity Halifax MA | Healthcare & Social Assistance | 0 | - | C |
| Sisters of Charity of Cincinnati, Inc. OH | Healthcare & Social Assistance | 0 | - | F |
| Sisters of Charity of Leavenworth Health System Inc. CO | Healthcare & Social Assistance | 1 | $112,320 | - |
