| Name | Lobbying Transparency ⬇️ | Lobbying Governance |
|---|---|---|
| Obic Co Ltd | E | C |
| OC Oerlikon Corp AG | E | C |
| OGE Energy Corp | E | C |
| Oki Electric Industry Co Ltd | E | C |
| Okta Inc | E | C |
| Okuwa Co Ltd | E | C |
| Olympus Corp | E | C |
| Ontex Group NV | E | C |
| Organon & Co | E | C |
| Orion Oyj | E | C |
| Orix JREIT Inc | E | C |
| Orron Energy ab | E | C |
| Oshkosh Corp | E | C |
| Otsuka Corp | E | C |
| Otsuka Holdings Co Ltd | E | C |
| Packaging Corp of America | E | C |
| Pandox AB | E | C |
| Paragon Banking Group PLC | E | C |
| Paramount Group Inc | E | C |
| Pearson PLC | E | C |