| Opperman & Son, Inc. CA | Retail Trade | 0 | — | F |
| Oppermann SC | — | 0 | — | — |
| OPPIZI US INC. NY | Professional & Technical Services | 1 | $120,000 | — |
| OPPORTUNITIES INDUSTRIALIZATION CENTER NC | Healthcare & Social Assistance | 0 | — | D |
| OPPORTUNITIES INDUSTRIALIZATION CENTER SC | Healthcare & Social Assistance | 0 | — | A |
| Opportunities Unlimited, Inc. ID | Healthcare & Social Assistance | 0 | — | A |
| Opportunity Acres Inc CA | Healthcare & Social Assistance | 0 | — | A |
| Opportunity Center-Easter Seals AL | Administrative & Waste Services | 0 | — | A |
| Opportunity Council WA | Healthcare & Social Assistance | 0 | — | F |
| Opportunity Development Centers, Inc. WI | Healthcare & Social Assistance | 0 | — | F |
| Opportunity Enterprises WI | Administrative & Waste Services | 0 | — | A |
| OPPORTUNITY ENTERPRISES, INC MO | Healthcare & Social Assistance | 0 | — | A |
| OPPORTUNITY FINANCIAL LLC IL | Finance & Insurance | 3 | $149,005 | — |
| Opportunity Foundation OR | Healthcare & Social Assistance | 0 | — | F |
| Opportunity Foundation of Central Oregon OR | Healthcare & Social Assistance | 0 | — | A |
| Opportunity Homes, Inc. IA | Healthcare & Social Assistance | 0 | — | F |
| Opportunity Homes, Inc. OH | Healthcare & Social Assistance | 0 | — | F |
| Opportunity House, Inc CT | Healthcare & Social Assistance | 0 | — | F |
| Opportunity House, Inc. IL | Healthcare & Social Assistance | 0 | — | A |
| Opportunity Industries, Inc. dba Valley Electric Service WA | Construction | 0 | — | F |
| Opportunity Matters, Inc. MN | Healthcare & Social Assistance | 0 | — | F |
| Opportunity Partners MN | Healthcare & Social Assistance | 0 | — | F |
| Opportunity Resources, Inc. MT | Healthcare & Social Assistance | 0 | — | F |
| Opportunity Works Connecticut, Inc. CT | Healthcare & Social Assistance | 0 | — | F |
| Opportunity Workshop Inc. MO | Healthcare & Social Assistance | 0 | — | A |
| Opportunity Workshop of Lexington KY | Healthcare & Social Assistance | 0 | — | A |
| oPRO.ai Inc. TX | Information & Media | 1 | $160,000 | — |
| Opry City Stage (GOOSPK 1604 Broadway II LLC, a subsidiary of Ryman Hospitality Properties, Inc.) NY | — | 0 | — | — |
| OPS Living Services LLC IN | Healthcare & Social Assistance | 0 | — | F |
| OpsERA Inc CA | Information & Media | 1 | $200,000 | — |
| OpSource Staffing SC | Administrative & Waste Services | 0 | — | D |
| OpsVeda, Inc. CA | Professional & Technical Services | 1 | $95,000 | — |
| OPSWAT, INC. FL | Professional & Technical Services | 1 | $215,000 | — |
| OPT Connect Management, LLC UT | Manufacturing | 1 | $135,309 | — |
| Opta (USA) Inc NY | Manufacturing | 0 | — | D |
| Optalis Health & Rehabilitation of Ann Arbor MI | Healthcare & Social Assistance | 0 | — | A |
| Optalis Healthcare MI | Healthcare & Social Assistance | 0 | — | F |
| Optalis Healthcare OH | Healthcare & Social Assistance | 0 | — | A |
| Optalis Healthcare Companies OH | Healthcare & Social Assistance | 0 | — | F |
| Optalis Professional Services MI | Healthcare & Social Assistance | 0 | — | F |
| Optec USA, Inc. GA | Manufacturing | 1 | $60,000 | — |
| Optechon Inc CA | Accommodation & Food Services | 1 | $62,442 | — |
| Optek Technology Inc. TX | Manufacturing | 0 | — | F |
| Opterra Solution Inc. FL | Agriculture & Forestry | 0 | — | F |
| Opterra Solution Inc. LA | Agriculture & Forestry | 0 | — | A |
| Opterra Solutions Inc. FL | Agriculture & Forestry | 0 | — | F |
| Opterra Solutions Inc. GA | Agriculture & Forestry | 0 | — | A |
| Opterra Solutions Inc. KY | Agriculture & Forestry | 0 | — | A |
| Opterra Solutions Inc. MS | Agriculture & Forestry | 0 | — | A |
| Opterra Solutions Inc. NC | Agriculture & Forestry | 0 | — | A |
