| Name | Lobbying Transparency ⬇️ | Lobbying Governance |
|---|---|---|
| Onewo Inc | E | E |
| Onex Corp | E | E |
| On Holding AG | E | E |
| Onoken Co Ltd | E | E |
| Onto Innovation Inc | E | E |
| Onward Holdings Co Ltd | E | E |
| Ooma Inc | E | E |
| Ooredoo QPSC | E | E |
| OPAP SA | E | E |
| OPC Energy Ltd | E | E |
| Opendoor Technologies Inc | E | E |
| OPEN Group Inc | E | E |
| Open House Group Co Ltd | E | E |
| OPENLANE Inc | E | E |
| Open Lending Corp | E | E |
| Open Up Group Inc | E | E |
| OpenWork Inc | E | E |
| Operadora De Sites Mexicanos SAB de CV | E | E |
| OPKO Health Inc | E | E |
| Oponeo.pl SA | E | E |