| Oliver's Landscaping & Nursery, Inc FL | Administrative & Waste Services | 0 | — | A |
| Oliver's Market CA | Retail Trade | 0 | — | F |
| Oliver/Hatcher Construction & Development Inc. MI | Construction | 1 | $105,000 | — |
| Olivet Academy NY | Educational Services | 4 | $55,558 | — |
| Olivet Assembly Inc MO | Other Services | 1 | $36,941 | — |
| Olivet Nazarene University IL | Educational Services | 1 | $58,029 | — |
| Olivet University CA | Educational Services | 9 | $74,580 | — |
| Olivia AI, Inc DE | Information & Media | 1 | $97,176 | — |
| Olivia Chrysler Center MN | Retail Trade | 0 | — | A |
| Olivia Consulting, Inc. PA | Professional & Technical Services | 1 | $88,733 | — |
| Olivia Hospital and Clinic MN | Healthcare & Social Assistance | 0 | — | C |
| Olivier International, LLC LA | Professional & Technical Services | 0 | — | D |
| Olivo's Perfect Printing, Inc. NJ | Manufacturing | 0 | — | A |
| Olli Salumeria CA | Manufacturing | 0 | — | F |
| Olli Salumeria Americana, LLC CA | Manufacturing | 0 | — | F |
| Ollie's Noodle Shop NY | — | 0 | — | — |
| Ollier Masonry, Inc. IN | Construction | 0 | — | A |
| Olly Olly Group LLC IL | Wholesale Trade | 0 | — | A |
| OLM Food Solutions IA | Manufacturing | 0 | — | F |
| OLM Foods IA | Manufacturing | 0 | — | F |
| Olmsted Aggregate Inc. MN | Mining & Extraction | 0 | — | F |
| Olmsted County MN | Public Administration | 0 | — | D |
| Olmsted Medical Center MN | Healthcare & Social Assistance | 0 | — | A |
| Olmsted Medical Center 3rd Ave Bldg MN | Healthcare & Social Assistance | 0 | — | A |
| Olmsted Medical Center Elton Hills MN | Healthcare & Social Assistance | 0 | — | A |
| Olmsted Medical Center Hospital MN | Healthcare & Social Assistance | 0 | — | F |
| Olmsted Medical Center Hwy 52 Bldg MN | Healthcare & Social Assistance | 0 | — | A |
| Olmsted Medical Center NW Clinic MN | Healthcare & Social Assistance | 0 | — | A |
| Olmsted Medical Center SE Clinic MN | Healthcare & Social Assistance | 0 | — | D |
| Olney Assisted Living Partners, LLC MD | Healthcare & Social Assistance | 0 | — | F |
| Olo, Inc. NY | Professional & Technical Services | 1 | $128,544 | — |
| Olon IL | Manufacturing | 0 | — | A |
| Olon IN | Manufacturing | 0 | — | F |
| Olon NC | Manufacturing | 0 | — | F |
| Olon Industries NC | Manufacturing | 0 | — | A |
| Olon Industries Inc. (US) NC | — | 0 | — | — |
| Oloop LLC IL | Professional & Technical Services | 2 | $125,000 | — |
| OLPHERT CAPITAL LLC NY | Finance & Insurance | 3 | $125,000 | — |
| OLR America Inc. OH | Professional & Technical Services | 1 | $176,152 | — |
| OLR ECW, L.P. NY | Real Estate | 0 | — | F |
| OLR LBCE, L.P. NY | Real Estate | 0 | — | F |
| OLR MM, L.P. NY | Real Estate | 0 | — | A |
| OLS Hotels & Resorts LLC AZ | Accommodation & Food Services | 0 | — | F |
| OLS Hotels & Resorts LLC CA | Accommodation & Food Services | 0 | — | F |
| OLS Hotels & Resorts LLC HI | Accommodation & Food Services | 0 | — | F |
| OLS Hotels & Resorts LLC dba Springboard Hospitality HI | — | 0 | — | — |
| Olsen Ag Inc WA | Agriculture & Forestry | 0 | — | B |
| Olsen Beal Associates UT | Construction | 0 | — | F |
| Olsen Brother Inc. AZ | Construction | 0 | — | F |
| Olsen Brothers Inc. AZ | Construction | 0 | — | A |