| Ohio Valley Electrical Services OH | Construction | 0 | — | F |
| Ohio Valley Excavation OH | Construction | 0 | — | D |
| Ohio Valley Flooring, Inc. OH | Wholesale Trade | 0 | — | B |
| Ohio Valley Gas IN | Utilities | 0 | — | F |
| Ohio Valley Manufacturing OH | Manufacturing | 0 | — | F |
| Ohio Valley Medical Center WV | — | 0 | — | — |
| Ohio Valley Stow OH | Wholesale Trade | 0 | — | F |
| ohio valley supermarkets OH | Retail Trade | 0 | — | A |
| ohio valley supermarkets WV | Retail Trade | 0 | — | A |
| Ohio Valley Supply Company OH | Wholesale Trade | 0 | — | A |
| Ohio Valley Top Shop, Inc. WV | Manufacturing | 0 | — | A |
| Ohio Valley Trafford PA | Wholesale Trade | 0 | — | A |
| Ohio Valley Transloadling Company OH | — | 0 | — | — |
| Ohio Valley Waste Services, Inc. OH | Administrative & Waste Services | 0 | — | F |
| Ohio Valley Wine OH | Wholesale Trade | 0 | — | F |
| Ohio Wound Care Associates OH | Healthcare & Social Assistance | 0 | — | A |
| Ohio-West Virginia Excavating OH | Construction | 0 | — | D |
| OhioHealth Corp. OH | Healthcare & Social Assistance | 19 | $77,814 | D |
| OhioHealth Physician Group, Inc. OH | Healthcare & Social Assistance | 6 | $341,866 | — |
| Ohiopyle Prints, Inc. PA | Manufacturing | 0 | — | F |
| OHK GLOBAL INC TX | Retail Trade | 1 | $60,500 | — |
| OHK Logistics CA | Transportation & Warehousing | 0 | — | B |
| OHK Transport CA | Transportation & Warehousing | 0 | — | A |
| OHL REDLANDS CA | Wholesale Trade | 0 | — | F |
| OHLA Building, Inc. FL | Professional & Technical Services | 1 | $91,229 | A |
| OHLA USA Inc MD | Construction | 0 | — | A |
| OHLA USA, INC CA | Construction | 0 | — | F |
| OHLA USA, Inc. NY | Professional & Technical Services | 3 | $101,725 | A |
| Ohlde Dairy KS | Agriculture & Forestry | 0 | — | F |
| Ohlde Family Farms KS | Agriculture & Forestry | 0 | — | F |
| Ohlde Family Farms NE | Agriculture & Forestry | 0 | — | D |
| Ohlin Sales Inc. MN | Wholesale Trade | 0 | — | A |
| Ohly Americas WI | Manufacturing | 0 | — | D |
| OHM Concession Group, LLC MO | Accommodation & Food Services | 0 | — | D |
| OHM GURU KRUPA, LLC TX | Accommodation & Food Services | 0 | — | A |
| OHM International Inc. NJ | Wholesale Trade | 0 | — | A |
| Ohm Laboratories, Inc. NJ | Manufacturing | 3 | $112,333 | — |
| OHM PIT LLC PA | Accommodation & Food Services | 0 | — | A |
| OHM Specialty Pharmacy LLC MI | Retail Trade | 1 | $100,000 | — |
| OHM TM Leadership Fund, LLC MO | Accommodation & Food Services | 0 | — | A |
| Ohman Family Living OH | Healthcare & Social Assistance | 0 | — | F |
| Ohman Family Living at Blossom OH | Healthcare & Social Assistance | 0 | — | A |
| Ohman Family Living at Briar OH | Healthcare & Social Assistance | 0 | — | A |
| OHMEGA TECHNOLOGIES LLC CA | Manufacturing | 0 | — | F |
| Ohmite Texas LP TX | Wholesale Trade | 0 | — | C |
| Ohmium International CA | Manufacturing | 0 | — | A |
| Ohmstede Industrial Services, Inc TX | Construction | 0 | — | A |
| Ohmstede Ltd LA | Other Services | 0 | — | A |
| Ohmstede Ltd TX | Other Services | 0 | — | A |
| Ohno Construction Company CA | Construction | 0 | — | F |
