| Olympic Steel NC | - | 0 | - | - |
| Olympic Steel OH | Wholesale Trade | 0 | - | A |
| Olympic Steel, Inc. CT | Wholesale Trade | 0 | - | F |
| Olympic Steel, Inc. PA | Wholesale Trade | 0 | - | F |
| Olympic Tug & Barge, INC WA | Transportation & Warehousing | 0 | - | C |
| Olympus CA | Other Services | 0 | - | B |
| Olympus TN | Manufacturing | 0 | - | F |
| Olympus Building Services Inc. OH | - | 0 | - | - |
| Olympus Construction Inc. AR | Construction | 1 | $69,540 | - |
| Olympus Corporation of the Americas PA | Management of Companies | 2 | $129,318 | A |
| Olympus Imaging America Inc. and Olympus Corporation of the Americas NY | - | 0 | - | - |
| OM Consulting Engineers Group LLC NJ | Professional & Technical Services | 2 | $101,000 | - |
| Om Ganapati INC CA | Accommodation & Food Services | 1 | $140,795 | - |
| Om Namah Shivaaya - Caters, LLC TX | Accommodation & Food Services | 1 | $112,923 | - |
| OM Partners USA, Inc. GA | Professional & Technical Services | 9 | $101,667 | - |
| Om Tek INC TX | Professional & Technical Services | 12 | $104,557 | - |
| Om4tech Services Incorporated TX | Professional & Technical Services | 1 | $84,386 | - |
| OMA AMO Architecture PC NY | Professional & Technical Services | 2 | $97,500 | - |
| Oma Dixon Claunch III TX | Finance & Insurance | 1 | $70,782 | - |
| Oma4 LLC GA | Professional & Technical Services | 5 | $83,960 | - |
| Omada Health INC. CA | Healthcare & Social Assistance | 2 | $160,740 | - |
| Omaha Anesthesia Associates, LLC NE | - | 0 | - | - |
| Omaha Housing Authority NE | Real Estate | 0 | - | F |
| Omaha Industries NE | Manufacturing | 0 | - | D |
| Omaha Public Power District NE | Construction | 1 | $145,841 | A |
| Omaha Public Schools, District 0001 NE | Educational Services | 4 | $82,057 | - |
| Omaha Standard, LLC IA | - | 0 | - | - |
| Omaha Steaks NE | Manufacturing | 0 | - | D |
| Omaha Steaks International, Inc. NE | - | 0 | - | - |
| Omaha Track NE | Wholesale Trade | 0 | - | C |
| Omaha Truck and Trailer NE | - | 0 | - | - |
| Omaha Truck Center INC IA | Wholesale Trade | 0 | - | B |
| Omaha Truck Center INC MN | Wholesale Trade | 0 | - | C |
| Omaha Truck Center INC NE | Wholesale Trade | 0 | - | C |
| Omaha World Herald NE | - | 0 | - | - |
| Omaha Zoo Group NE | Arts & Entertainment | 0 | - | F |
| Omak Wood Products WA | - | 0 | - | - |
| Omali Diagnostics LLC TX | Healthcare & Social Assistance | 1 | $70,200 | - |
| OMALiNK NE | - | 0 | - | - |
| Omaze OH | - | 0 | - | - |
| Omaze, Inc. CA | - | 0 | - | - |
| Omco IN | Manufacturing | 0 | - | F |
| Omco Sumo, Inc. WI | Manufacturing | 1 | $99,091 | A |
| Omd USA LLC NY | Professional & Technical Services | 4 | $120,075 | - |
| Omeda Holdings, LLC IL | Professional & Technical Services | 2 | $103,820 | - |
| Omega Alpha Academy AZ | Educational Services | 1 | $41,100 | - |
| Omega Animal Group CA | Professional & Technical Services | 1 | $147,638 | - |
| Omega Construction Inc. NC | Construction | 1 | $80,808 | C |
| Omega Design LLC TX | Professional & Technical Services | 1 | $69,300 | - |
| Omega Engineering NJ | Manufacturing | 0 | - | F |
