| OpenTeQ Technologies LLC TX | Professional & Technical Services | 4 | $119,824 | — |
| Opentrons Labworks, Inc. NY | Professional & Technical Services | 2 | $184,650 | A |
| OPENWAVE COMPUTING LLC. NY | Professional & Technical Services | 4 | $110,812 | — |
| OpenX Technologies, Inc. CA | — | 0 | — | — |
| Opera Colorado CO | Arts & Entertainment | 0 | — | D |
| Opera Theatre of Saint Louis MO | Arts & Entertainment | 0 | — | D |
| Operandio US, LLC UT | Information & Media | 1 | $150,000 | — |
| Operation Grow LLC MI | Agriculture & Forestry | 0 | — | A |
| Operation Homefront TX | Healthcare & Social Assistance | 0 | — | A |
| Operation Hope of Fairfield CT | Healthcare & Social Assistance | 0 | — | A |
| Operation Stand Down TN TN | Healthcare & Social Assistance | 0 | — | F |
| Operation Technology, Inc. CA | Professional & Technical Services | 2 | $130,000 | — |
| Operational Innovations, Inc. NY | Professional & Technical Services | 1 | $105,000 | — |
| OPERATIONS MANAGEMENT INTERNATIONAL INC. TX | Utilities | 1 | $91,484 | — |
| Operations of Global Spectrum, L.P. d/b/a Spectra Venue Management ("Spectra") at Canalside, Buffalo, NY NY | — | 0 | — | — |
| Operations Services, Inc. IL | Utilities | 0 | — | A |
| Operative Cake NY | Transportation & Warehousing | 0 | — | D |
| Operio Group LLC TX | Wholesale Trade | 0 | — | A |
| OPERS AZ | Accommodation & Food Services | 0 | — | F |
| Opes Solutions LLC FL | Professional & Technical Services | 1 | $116,771 | — |
| OPEX Corporation NJ | Manufacturing | 2 | $137,500 | F |
| OPEX Corporation TX | Manufacturing | 0 | — | A |
| Opflex Environmental Technologies NY | — | 0 | — | — |
| OPG Holdings TN | — | 0 | — | — |
| OPH Restaurant Surf City LLC, dba The Original Pancake House CA | — | 0 | — | — |
| OPHIR ASSET MANAGEMENT US LLC CO | Finance & Insurance | 1 | $250,000 | — |
| Ophthalmology Consultants VI | Healthcare & Social Assistance | 0 | — | A |
| Ophthonix Inc CA | — | 0 | — | — |
| Ophthotech Corporation NJ | — | 0 | — | — |
| Opici Family Distributing of MD MD | Wholesale Trade | 0 | — | A |
| Opici Family Distributing of New York NY | Wholesale Trade | 0 | — | A |
| Opici Import Company, Inc NJ | Wholesale Trade | 0 | — | A |
| Opies Transport Inc MO | Transportation & Warehousing | 0 | — | C |
| Opies Transport Inc TN | Transportation & Warehousing | 0 | — | F |
| Opinion Access Corp. NY | — | 0 | — | — |
| Opinr, Inc. DE | Information & Media | 1 | $193,000 | — |
| Opla Energy Services Ltd. TX | Mining & Extraction | 0 | — | A |
| OPM Doctors MI | Healthcare & Social Assistance | 1 | $112,341 | — |
| OPmobility KS | — | 0 | — | — |
| OPmobility f/k/a Plastic Omnium Auto Exterior LLC TN | Manufacturing | 2 | $110,445 | — |
| OPmobility Holding USA, Inc. TN | Manufacturing | 1 | $122,596 | — |
| Oportun, Inc. CA | Finance & Insurance | 9 | $164,370 | — |
| Opp Construction ND | Construction | 0 | — | C |
| Opp Health & Rehabilitation, LLC AL | Healthcare & Social Assistance | 0 | — | F |
| Opp Health and Rehabilitation, LLC AL | Healthcare & Social Assistance | 0 | — | F |
| Opp Utilities Board AL | Public Administration | 0 | — | F |
| OPPD NE | Construction | 0 | — | F |
| Oppenheim Zebrak, LLP DC | Professional & Technical Services | 1 | $364,000,000 | — |
| Oppenheimer & Co. Inc. NY | Finance & Insurance | 2 | $136,866 | — |
| Oppenheimer Precision Products, Inc. PA | Manufacturing | 0 | — | F |
