| Okamoto Sandusky Manufacturing, LLC OH | Manufacturing | 0 | - | F |
| Okana Inc. NY | Construction | 1 | $62,400 | - |
| Okanogan County Public Hospital District 4 WA | Healthcare & Social Assistance | 2 | $199,610 | - |
| Okay Industries, Inc CT | Manufacturing | 0 | - | F |
| OKBL USA Technology Inc. CA | Finance & Insurance | 23 | $252,439 | - |
| OKC USA Holding Inc. CA | Finance & Insurance | 4 | $214,380 | - |
| okemah care center, l.l.c. OK | Healthcare & Social Assistance | 0 | - | - |
| OKI Data Americas, Inc. NJ | - | 0 | - | - |
| Oki Developments Inc WA | - | 0 | - | - |
| Oki Ringo dba Covina, o ya, & Roof @ Park South NY | - | 0 | - | - |
| Oklahoma Baptist University OK | Professional & Technical Services | 1 | $98,739 | - |
| Oklahoma Blood Institute OK | Healthcare & Social Assistance | 6 | $79,069 | - |
| Oklahoma City Ballet OK | Arts & Entertainment | 0 | - | A |
| Oklahoma Conference of Seventh-day Adventists OK | Other Services | 2 | $67,614 | - |
| Oklahoma Electric Cooperative OK | Utilities | 0 | - | D |
| Oklahoma Electrical Supply Company OK | Construction | 0 | - | D |
| Oklahoma Gas & Electric CO OK | Utilities | 0 | - | A |
| Oklahoma Joe's NE | - | 0 | - | - |
| Oklahoma Medical Research Foundation OK | Professional & Technical Services | 8 | $53,755 | - |
| Oklahoma Natural Gas OK | Utilities | 0 | - | A |
| Oklahoma Panhandle State University OK | Educational Services | 3 | $43,150 | - |
| Oklahoma Philharmonic Society, Inc OK | Arts & Entertainment | 1 | $61,173 | - |
| Oklahoma Spine Hospital OK | Healthcare & Social Assistance | 0 | - | A |
| Oklahoma State Bureau of Investigation OK | Administrative & Waste Services | 1 | $92,266 | - |
| Oklahoma State University OK | Educational Services | 28 | $75,580 | - |
| Oklahoma Steel & Wire OK | Manufacturing | 0 | - | F |
| Oklahoma Wesleyan University OK | Educational Services | 3 | $38,975 | - |
| Okland Construction UT | Construction | 0 | - | B |
| Oksenholt Hospitality - Meredith Lodgin OR | - | 0 | - | - |
| Oksenholt Hospitality Company - Meredit OR | - | 0 | - | - |
| Oksenholt Hospitality Company - Mojo Re OR | - | 0 | - | - |
| Okta, Inc. CA | Professional & Technical Services | 80 | $171,610 | - |
| Olam Americas NM | Manufacturing | 0 | - | C |
| Olam Americas, LLC CA | Manufacturing | 8 | $180,631 | C |
| Olam Spices CA | Agriculture & Forestry | 0 | - | F |
| Olam Spices & Vegetables CA | - | 0 | - | - |
| Olam West Coast, Inc. CA | Manufacturing | 0 | - | F |
| Olam West Coast, Inc. NM | Manufacturing | 0 | - | F |
| Olameter Corporation KY | Administrative & Waste Services | 0 | - | F |
| Olameter Corporation WI | Administrative & Waste Services | 0 | - | F |
| Olameter Damage Prevention Group CO | Administrative & Waste Services | 0 | - | F |
| Olameter DPG, LLC WI | - | 0 | - | - |
| Olaris, Inc. MA | Professional & Technical Services | 2 | $133,063 | - |
| Olayan America Delaware, LLC NY | Finance & Insurance | 1 | $160,000 | - |
| Old Castle Building Envelope TX | Manufacturing | 0 | - | C |
| Old Country Buffet - FMP Ovation Payroll, LLC NY | - | 0 | - | - |
| Old Custom House, Inc. CA | - | 0 | - | - |
| Old Dominion Freight Line Inc AZ | Transportation & Warehousing | 0 | - | C |
| Old Dominion Freight Line Inc CA | Transportation & Warehousing | 0 | - | D |
| Old Dominion Freight Line Inc CO | Transportation & Warehousing | 0 | - | D |
