| OE ENTERPRISES, INC. SC | Healthcare & Social Assistance | 0 | — | F |
| OE Meyer Co OH | Wholesale Trade | 0 | — | C |
| OEA, Inc. Operating Co UT | Manufacturing | 0 | — | A |
| Oeanside Resorts NC | Accommodation & Food Services | 0 | — | D |
| OEC FREIGHT (NY) INC. NY | Transportation & Warehousing | 3 | $88,770 | — |
| OEC Graphics, Inc. CA | Manufacturing | 0 | — | A |
| OEC Graphics, Inc. IL | Manufacturing | 0 | — | F |
| OEC Graphics, Inc. SC | Manufacturing | 0 | — | A |
| OEC Graphics, Inc. WI | Manufacturing | 0 | — | F |
| OEC Medical Systems, Inc. UT | Manufacturing | 0 | — | C |
| OEC Petroleum Systems SC | Wholesale Trade | 0 | — | A |
| OECO, LLC OR | Manufacturing | 0 | — | B |
| OEG Building Materials NJ | Manufacturing | 0 | — | C |
| OEG, Inc. AZ | Construction | 0 | — | A |
| OEG, Inc. CA | Construction | 0 | — | A |
| OEG, Inc. OR | Construction | 0 | — | F |
| OEG, Inc. WA | Construction | 0 | — | F |
| Oehm Automation LLC CA | Professional & Technical Services | 1 | $120,000 | — |
| OEI WI | Real Estate | 0 | — | A |
| OEIS Energy Safety CA | Utilities | 0 | — | F |
| Oeitiker NY Inc NY | Manufacturing | 0 | — | F |
| OEL Construction Services, Inc. IA | Construction | 0 | — | F |
| OEM Controls, Inc. CT | Manufacturing | 0 | — | C |
| OEM Fabricators WI | Manufacturing | 0 | — | F |
| OEM Solutions, Inc. SD | Manufacturing | 0 | — | A |
| OEM Source Inc NJ | Wholesale Trade | 0 | — | A |
| OEM Systems, LLC OK | Manufacturing | 0 | — | A |
| OEM Tube Assemblies FL | Manufacturing | 0 | — | F |
| OEMMCCO Inc. WI | — | 0 | — | — |
| OEP Capital Advisors L.P. NY | Finance & Insurance | 1 | $147,389 | — |
| OEP Holdings, LLC TX | Administrative & Waste Services | 0 | — | A |
| Oerlikon NY | Manufacturing | 0 | — | F |
| Oerlikon WI | Manufacturing | 0 | — | F |
| Oerlikon Balzers Coating USA AL | — | 0 | — | — |
| Oerlikon Balzers Coating USA Inc IL | Manufacturing | 0 | — | B |
| Oerlikon Balzers Coating USA Inc IN | Manufacturing | 0 | — | A |
| Oerlikon Balzers Coating USA Inc MA | Manufacturing | 0 | — | A |
| Oerlikon Balzers Coating USA Inc MI | Manufacturing | 0 | — | C |
| Oerlikon Balzers Coating USA Inc NY | Manufacturing | 0 | — | A |
| Oerlikon Balzers Coating USA Inc SC | Manufacturing | 0 | — | A |
| Oerlikon Balzers Coating USA Inc TN | Manufacturing | 0 | — | A |
| Oerlikon Balzers Coating USA Inc. OH | — | 0 | — | — |
| Oerlikon Friction Systems OH | Manufacturing | 0 | — | A |
| Oerlikon Friction Systems US, Inc. OH | Manufacturing | 0 | — | F |
| Oerlikon Metco MI | Manufacturing | 0 | — | F |
| OES Equipment TX | Transportation & Warehousing | 0 | — | A |
| Oetiker MI | Manufacturing | 0 | — | B |
| Oetiker NY Inc NY | Manufacturing | 0 | — | F |
| OFallon CCSD #90 IL | Educational Services | 0 | — | A |
| OFC Development Corporation NE | Transportation & Warehousing | 0 | — | A |