| Sonoma County Regional Parks CA | Arts & Entertainment | 0 | — | F |
| Sonoma County Sheriff's Office CA | Public Administration | 0 | — | F |
| Sonoma County Transportation & Public Works CA | Construction | 0 | — | C |
| Sonoma County Vintners Coop, Inc. CA | Transportation & Warehousing | 0 | — | A |
| Sonoma County Water Agency CA | Utilities | 0 | — | F |
| Sonoma Delivery Services LLC CA | Transportation & Warehousing | 0 | — | F |
| Sonoma Hills CA | Healthcare & Social Assistance | 0 | — | F |
| Sonoma State University CA | Educational Services | 1 | $147,492 | — |
| Sonoma Technology, Inc. CA | Professional & Technical Services | 1 | $95,930 | — |
| Sonoma Valley Community Health Center CA | Healthcare & Social Assistance | 1 | $239,200 | — |
| Sonoma Valley Health Care District dba Sonoma Valley Hospital CA | Healthcare & Social Assistance | 0 | — | F |
| Sonoma Valley Unified School District CA | Educational Services | 1 | $79,255 | — |
| Sonoma Vineyard Company, Inc. CA | Manufacturing | 0 | — | A |
| Sonoma-Marin Area Rail Transit (SMART) CA | Transportation & Warehousing | 0 | — | D |
| Sonora Community Hospital CA | Healthcare & Social Assistance | 3 | $125,334 | — |
| SONORA CONSTRUCTION TX | Construction | 0 | — | A |
| Sonora Drywall Construction LLC AZ | Construction | 0 | — | F |
| Sonora Packing Company CA | — | 0 | — | — |
| Sonoran Pittsburgh, LLC PA | Accommodation & Food Services | 0 | — | F |
| Sonoran Plumbing Supply AZ | Retail Trade | 0 | — | D |
| Sonoran Pueblo Contractors, LLC. AZ | Construction | 0 | — | A |
| Sonoran Raleigh LLC NC | Accommodation & Food Services | 0 | — | F |
| Sonoran San Antonio LLC TX | Accommodation & Food Services | 0 | — | A |
| Sonos, Inc. CA | Manufacturing | 11 | $158,396 | — |
| Sonova Consumer Hearing USA, LLC CT | Manufacturing | 1 | $123,781 | — |
| Sonova Consumer Hearing USA, LLC IL | Manufacturing | 1 | $123,781 | — |
| Sonova United States Corporate Services, LLC IL | Manufacturing | 1 | $148,949 | — |
| Sonova USA Inc. CA | Manufacturing | 2 | $111,988 | — |
| SonRay Door and Trim CA | Construction | 0 | — | F |
| SonRay Solar, Inc., dba SonRay Construction, Inc. CA | Construction | 0 | — | F |
| SONS OF THE REVOLUTION IN THE STATE OF NEW YORK NY | Arts & Entertainment | 1 | $81,182 | — |
| Sonsio LLC AZ | Wholesale Trade | 0 | — | A |
| Sonsio LLC CO | Wholesale Trade | 0 | — | B |
| Sonsio LLC MO | Wholesale Trade | 0 | — | A |
| Sonsoft Inc. FL | Professional & Technical Services | 2 | $114,400 | — |
| Sontag Construction, Inc. CA | Construction | 0 | — | F |
| SONTERRA DERMATOLOGY, PLLC TX | Healthcare & Social Assistance | 0 | — | F |
| Sonus Interiors MN | Construction | 0 | — | F |
| Sonus Software Solutions Inc UT | Professional & Technical Services | 6 | $100,825 | — |
| Sonus Software Solutions Inc., UT | Professional & Technical Services | 1 | $83,658 | — |
| Sonwil Distribution Center GA | Transportation & Warehousing | 0 | — | A |
| Sonwil Distribution Center NY | Transportation & Warehousing | 0 | — | A |
| Sony Computer Entertainment America CA | — | 0 | — | — |
| SONY CORPORATION OF AMERICA NY | Manufacturing | 3 | $170,600 | — |
| Sony DADC IN | Manufacturing | 0 | — | A |
| Sony DADC US Inc IN | Manufacturing | 0 | — | F |
| Sony DADC US Inc. IL | — | 0 | — | — |
| Sony Electronics Inc. CA | Transportation & Warehousing | 0 | — | A |
| SONY ELECTRONICS INC. NJ | Manufacturing | 4 | $143,815 | — |
| Sony Electronics, Inc.-San Diego CA | — | 0 | — | — |
