| Nimi | Paikkakunta |
|---|---|
| Oscar Tango Oy | Helsinki |
| Oscarin Oy | Helsinki |
| Oseki Oy | Helsinki |
| Oshana Full Life Programs | Helsinki |
| Osinco Oy | Helsinki |
| Osiodeko Oy | Helsinki |
| Osiris Oy | Helsinki |
| OSK ROTUNDA | Helsinki |
| OSK Senira Solutions | Helsinki |
| Osk Sydäntila | Helsinki |
| Oskar Köhler | Helsinki |
| Oskar Mauritz | Helsinki |
| Oskari Savin | Helsinki |
| Oskelakoti Oy | Helsinki |
| Osku Lähde | Helsinki |
| OSMA PHOTOGRAPHY | Helsinki |
| Osmia Oy | Helsinki |
| OSMO Consulting | Helsinki |
| Osmo Puuperä Photography | Helsinki |
| Osmo Walden Films Oy | Helsinki |
| Osmos Music | Helsinki |
| OSOS POLARES | Helsinki |
| Ossi Pulkka | Helsinki |
| Osso Percussion | Helsinki |
| Osteofit | Helsinki |
Yritysesittely