| Otscon MO | - | 0 | - | - |
| Otsuka America Pharmaceutical, Inc. NJ | Manufacturing | 5 | $199,274 | - |
| Otsuka America Pharmaceutical, Inc. (OAPI) NJ | Wholesale Trade | 0 | - | A |
| Otsuka Pharmaceutical Development & Commercialization, Inc. NJ | Manufacturing | 4 | $166,009 | - |
| Ott Hydromet CORPORATION VA | Manufacturing | 1 | $106,162 | - |
| Ott Law Firm, LLC MO | Professional & Technical Services | 1 | $69,500 | - |
| Ottawa County MI | Public Administration | 0 | - | C |
| Ottawa County Road Commission MI | Construction | 0 | - | F |
| Ottawa Dental Laboratory, LLC IL | Manufacturing | 0 | - | C |
| Ottawa University KS | Educational Services | 4 | $59,949 | - |
| Otten Bros. Nursery & Landscaping, Inc. MN | Retail Trade | 0 | - | A |
| Otten Brothers Nursery & Landscaping, Inc. MN | Retail Trade | 0 | - | C |
| Ottenweller Company, Inc. IN | Manufacturing | 0 | - | F |
| Otter Products LLC CO | Manufacturing | 0 | - | C |
| Otter.AI, INC. CA | Information & Media | 10 | $174,858 | - |
| Otterbein Home OH | Healthcare & Social Assistance | 0 | - | F |
| Otterbein Homes IN | Healthcare & Social Assistance | 0 | - | F |
| Otterbein Homes OH | Healthcare & Social Assistance | 0 | - | F |
| Otterbein University OH | Educational Services | 1 | $71,500 | - |
| Otto Aviation Group, LLC TX | Manufacturing | 3 | $146,667 | - |
| Otto Bock HealthCare LP TX | Manufacturing | 3 | $132,895 | - |
| OTTO Engineering IL | Manufacturing | 0 | - | D |
| Otto Enoteca Pizzeria NV | - | 0 | - | - |
| Otto Enoteca Pizzeria NY | - | 0 | - | - |
| Otto Home Goods INC. NJ | - | 0 | - | - |
| Otto Roza, MD PA MD | Healthcare & Social Assistance | 1 | $250,000 | - |
| Ottobock Orthopedic Services , LLC AZ | - | 0 | - | - |
| Ottumwa Regional Health Center #800 - D530090 IA | Healthcare & Social Assistance | 0 | - | F |
| OU Health Partners, Inc. OK | Healthcare & Social Assistance | 2 | $342,500 | - |
| OU Medicine, Inc. OK | Healthcare & Social Assistance | 3 | $117,453 | - |
| Ouachita County Medical Center AR | Healthcare & Social Assistance | 0 | - | D |
| Our Home Of Unity LLC AZ | Healthcare & Social Assistance | 0 | - | - |
| Our House, Inc. NJ | Healthcare & Social Assistance | 0 | - | F |
| Our Kids of Miami-Dade/Monroe FL | - | 0 | - | - |
| Our Lady of Angels Retirement Home IL | - | 0 | - | - |
| Our Lady of Fatima PA | - | 0 | - | - |
| Our Lady of Lourdes Memorial Hospital, Inc. d/b/a Guthrie Lourdes Hospital NY | Healthcare & Social Assistance | 3 | - | - |
| Our Lady of Mercy Life Center NY | Healthcare & Social Assistance | 0 | - | F |
| Our Lady of Mercy Regional School NY | - | 0 | - | - |
| Our Lady of Mercy School NY | - | 0 | - | - |
| Our Lady of Peace MN | Healthcare & Social Assistance | 0 | - | F |
| Our Lady of Perpetual Help School NY | - | 0 | - | - |
| Our Lady of the Lake University TX | Educational Services | 1 | $91,000 | - |
| Our Lady of Victory Academy NY | - | 0 | - | - |
| Our Lady of Wisdom Regional School (Port Washington) NY | - | 0 | - | - |
| Our Lady's Haven MA | Healthcare & Social Assistance | 0 | - | F |
| Our Lady's Residence NJ | - | 0 | - | - |
| Our Next Energy MI | - | 0 | - | - |
| Our Sunday Visitor IN | Information & Media | 0 | - | F |
| OuraRing, Inc. CA | Manufacturing | 4 | $157,570 | - |
