| Old Dominion Freight Line Inc OH | Transportation & Warehousing | 0 | - | D |
| Old Dominion Freight Line Inc OK | Transportation & Warehousing | 0 | - | D |
| Old Dominion Freight Line Inc OR | Transportation & Warehousing | 0 | - | D |
| Old Dominion Freight Line Inc PA | Transportation & Warehousing | 0 | - | D |
| Old Dominion Freight Line Inc RI | Transportation & Warehousing | 0 | - | F |
| Old Dominion Freight Line Inc SC | Transportation & Warehousing | 0 | - | C |
| Old Dominion Freight Line Inc TN | Transportation & Warehousing | 0 | - | C |
| Old Dominion Freight Line Inc TX | Transportation & Warehousing | 0 | - | C |
| Old Dominion Freight Line Inc UT | Transportation & Warehousing | 0 | - | C |
| Old Dominion Freight Line Inc WI | Transportation & Warehousing | 0 | - | F |
| Old Dominion Freight Line, Inc. NC | Transportation & Warehousing | 1 | $135,609 | D |
| Old Dominion Job Corps Center VA | - | 0 | - | - |
| Old Dominion Peanut Company VA | - | 0 | - | - |
| Old Dominion University VA | Educational Services | 62 | $85,000 | - |
| Old Dominion University Research Foundation VA | Professional & Technical Services | 3 | $54,671 | - |
| Old Europe Cheese, Inc. MI | Manufacturing | 0 | - | F |
| Old Fashioned Kitchen NJ | Manufacturing | 0 | - | D |
| Old Fisherman's Grotto CA | - | 0 | - | - |
| Old Growth Tree Service LLC CO | Administrative & Waste Services | 0 | - | F |
| Old Hickory smokehouse LLC TN | Manufacturing | 0 | - | F |
| Old Home Bakery NE | - | 0 | - | - |
| Old Homestead NY | - | 0 | - | - |
| Old Log Theatre MN | - | 0 | - | - |
| Old London Foods, Inc. NY | - | 0 | - | - |
| Old Mates 170 John LLC NY | Accommodation & Food Services | 6 | $80,000 | - |
| Old Mill Veterinary Hospital VA | Professional & Technical Services | 0 | - | F |
| Old Mission Capital, LLC IL | Finance & Insurance | 3 | - | - |
| Old National Bancorp MI | - | 0 | - | - |
| Old National Bancorp IN | - | 0 | - | - |
| Old National Bank IN | Finance & Insurance | 5 | $145,649 | - |
| Old Republic General Services IL | - | 2 | $200,000 | - |
| Old Souls Farm OH | Manufacturing | 0 | - | F |
| old spagetti Factory AZ | - | 0 | - | - |
| Old Spaghetti Factory (Dariotis Group Restaurants) CA | - | 0 | - | - |
| Old Three Hundred Capital, LLC TX | - | 2 | $258,750 | - |
| Old Time Pottery OK | - | 0 | - | - |
| Old TIme Pottery, Inc. OH | - | 0 | - | - |
| Old Town Design Group IN | Construction | 1 | $112,200 | - |
| Old Town Family Hospitality Corporation CA | - | 0 | - | - |
| Old Town Market, LLC dba Plum Market IL | - | 0 | - | - |
| Old Town Pour House MD | - | 0 | - | - |
| Old Town Trolley Tours TN | - | 0 | - | - |
| Old Town Trolley Tours and San Diego Seals CA | - | 0 | - | - |
| Old Town Trolley Tours of San Diego CA | - | 0 | - | - |
| Old Trapper Smoked Products, Inc OR | Manufacturing | 0 | - | D |
| Old Wisconsin WI | Manufacturing | 0 | - | B |
| Old World Industries LLC IL | Wholesale Trade | 1 | $175,500 | A |
| Oldcastle APG, Inc. GA | - | 1 | $95,500 | - |
| Oldcastle Building Envelope OK | - | 0 | - | - |
| Oldcastle Building Envelope WA | Manufacturing | 0 | - | F |
