| onsemi ID | Manufacturing | 0 | — | C |
| Onsemi ME | — | 0 | — | — |
| OnServices AL | Construction | 0 | — | A |
| OnServices AZ | Construction | 0 | — | F |
| OnServices FL | Construction | 0 | — | A |
| OnServices GA | Construction | 0 | — | F |
| OnServices NC | Construction | 0 | — | F |
| OnServices TN | Construction | 0 | — | A |
| ONServices TX | Construction | 0 | — | A |
| Onset Labs, Inc. CA | Professional & Technical Services | 1 | $166,000 | — |
| Onshore Construction Company LLC LA | Construction | 0 | — | A |
| Onshore Materials LA | Construction | 0 | — | A |
| OnSight Industries LLC FL | Construction | 0 | — | D |
| Onsite Commerical Services CA | Construction | 0 | — | F |
| Onsite IT Advisors LLC GA | Professional & Technical Services | 1 | $104,000 | — |
| Onsite Partners, LLC TN | Healthcare & Social Assistance | 1 | $56,597 | — |
| Onsite Safety Inc. FL | Construction | 0 | — | A |
| ONSITE SOLUTIONS & SERVICES, LLC FL | Administrative & Waste Services | 0 | — | A |
| ONSITE SOLUTIONS & SERVICES, LLC MO | Administrative & Waste Services | 0 | — | A |
| ONSITE SOLUTIONS & SERVICES, LLC PA | Administrative & Waste Services | 0 | — | A |
| OnSite Solutions, Inc DBA VersaPro Restoration and Construction MI | Construction | 0 | — | A |
| Onsite Wellness Group, LLC TN | Healthcare & Social Assistance | 1 | $56,597 | F |
| ONSITE Woodwork Corporation GA | Manufacturing | 0 | — | F |
| ONSITE Woodwork Corporation IL | Manufacturing | 0 | — | F |
| ONSITE Woodwork Corporation NC | Manufacturing | 0 | — | A |
| Onslow Memorial Hospital NC | Healthcare & Social Assistance | 0 | — | D |
| Onstak Inc. CA | Professional & Technical Services | 3 | $101,837 | — |
| ONT CA | Transportation & Warehousing | 0 | — | D |
| ONT PAR CA | Transportation & Warehousing | 0 | — | A |
| OnTarget Drilling, LLC TX | Manufacturing | 1 | $108,000 | — |
| Ontario Airport Hotel Corporation CA | Accommodation & Food Services | 0 | — | F |
| Ontario Automotive, LLC d/b/a Penske Honda Ontario CA | — | 0 | — | — |
| Ontario Exteriors, INC. NY | Construction | 0 | — | F |
| Ontario Food & Beverage LLC CA | — | 0 | — | — |
| Ontario Grove Healthcare & Wellness Centre, LP CA | Healthcare & Social Assistance | 1 | $135,200 | F |
| Ontario Healthcare Center CA | Healthcare & Social Assistance | 0 | — | A |
| Ontario Hospital OH | Healthcare & Social Assistance | 0 | — | F |
| Ontario Knife Company NY | Manufacturing | 0 | — | F |
| Ontario Mechanical LLC OH | Manufacturing | 0 | — | A |
| Ontario Nissan, Inc. dba Metro Nissan of Montclair CA | — | 0 | — | — |
| Ontario Specialty Contracting, Inc. NY | Administrative & Waste Services | 0 | — | A |
| Ontario Stone Corp OH | Wholesale Trade | 0 | — | A |
| Ontario Teachers Pension Plan (USA), LLC CA | Finance & Insurance | 1 | $182,978 | — |
| Ontario Weiser Professional Care Team, LLC OR | Healthcare & Social Assistance | 0 | — | F |
| Ontario Wings, LLC CA | Accommodation & Food Services | 0 | — | A |
| Ontario-Montclair School District CA | Educational Services | 3 | $82,366 | — |
| Ontelaunee Power Operating Company LLC PA | Utilities | 0 | — | A |
| Ontellus CA | Professional & Technical Services | 0 | — | D |
| Ontellus TX | Professional & Technical Services | 0 | — | A |
| OnTheMove Logistics LLC IN | Transportation & Warehousing | 0 | — | F |
