| On Our Own Services INC TX | Administrative & Waste Services | 0 | - | A |
| On Point Logistics, LLC LA | Transportation & Warehousing | 0 | - | C |
| ON Search Partners, LLC OH | Administrative & Waste Services | 1 | $180,000 | - |
| On Target Sheet Metal Corp. NY | Utilities | 1 | $82,701 | - |
| On The Mark Logistics LLC NJ | Transportation & Warehousing | 0 | - | F |
| On The Spot Transportation CA | Transportation & Warehousing | 0 | - | F |
| On Time Air conditioning and heating CA | Construction | 0 | - | F |
| On Time Ambulance Inc. NJ | Healthcare & Social Assistance | 0 | - | F |
| On Time Departure LLC FL | Transportation & Warehousing | 0 | - | D |
| On Time Heating and Air Conditioning DBA Service Champions CA | Construction | 0 | - | F |
| On Time Logistics Solutions LLC FL | Transportation & Warehousing | 0 | - | F |
| On Time Staffing NJ | - | 0 | - | - |
| On Top Delivery LLC FL | Transportation & Warehousing | 0 | - | - |
| On Top of the World Communities, LLC FL | Construction | 0 | - | F |
| On With Life IA | - | 0 | - | - |
| On Your Mark INC NY | Healthcare & Social Assistance | 0 | - | - |
| On-Board Companies MI | - | 0 | - | - |
| On-Board PMO COVID19 NC | - | 0 | - | - |
| On-Demand Logistics Service LLC AZ | Transportation & Warehousing | 0 | - | F |
| ON-IT Logistics LLC WA | Transportation & Warehousing | 0 | - | F |
| On-Line Taxes, Inc. MO | Professional & Technical Services | 1 | $155,000 | - |
| ON24, Inc. CA | Professional & Technical Services | 3 | $168,852 | - |
| Onaga Health and rehab KS | Healthcare & Social Assistance | 0 | - | F |
| Onai Inc. CA | Professional & Technical Services | 2 | $139,443 | - |
| Onboard Logistics USA Inc. FL | Transportation & Warehousing | 1 | $40,000 | - |
| OnboardIQ Inc. CA | Professional & Technical Services | 2 | $198,000 | - |
| OnboardIT, LLC AZ | Professional & Technical Services | 1 | $122,471 | - |
| OnCall Urgent Care IL | - | 0 | - | - |
| Oncare Digital Assets, Inc. TX | Other Services | 2 | $95,000 | F |
| Oncept Inc. CA | - | 1 | $129,000 | - |
| Oncology Analytics Inc. d/b/a OncoHealth GA | Finance & Insurance | 1 | $140,000 | - |
| Oncology Analytics Inc. d/b/a OncoHealth GA | - | 1 | $116,699 | - |
| Oncology Services Medical Group, Inc. CA | - | 1 | $150,717 | - |
| Oncology Specialties, P.C. AL | - | 1 | $575,000 | - |
| OncoMed Pharmaceuticals, Inc. CA | - | 0 | - | - |
| OnCoor, Inc. CA | - | 2 | $147,500 | - |
| Oncor Electric Delivery CO LLC TX | Utilities | 0 | - | A |
| OnCore Consulting, LLC CA | Professional & Technical Services | 2 | $109,075 | - |
| ONCORE Federal, LLC NE | Construction | 1 | $175,000 | - |
| Oncore Manufacturing Services CA | - | 0 | - | - |
| OnCorps, Inc. MA | Administrative & Waste Services | 1 | $171,600 | - |
| Oncorre, INC. NJ | Professional & Technical Services | 8 | $131,997 | - |
| Onda Housing Group LLC FL | Real Estate | 1 | $140,000 | - |
| Onda Lay Pipe and Rental, Inc. TX | - | 0 | - | - |
| OnDean Management LLC IL | - | 1 | $157,000 | - |
| Ondo Finance Inc. CT | - | 3 | $225,000 | - |
| Ondo, INC. NY | Retail Trade | 1 | $85,000 | - |
| Ondot LLC CA | Transportation & Warehousing | 0 | - | D |
| One 27 Roof, LLC NY | - | 0 | - | - |
| One Algorithm LLC PA | Professional & Technical Services | 5 | $102,040 | - |