| Nimi | Paikkakunta |
|---|---|
| Otrakon tmi | Espoo |
| Otso Invest Oy | Espoo |
| Ott Jörg Horst | Espoo |
| OTTO design Oy | Espoo |
| Ou-Vel Oy | Espoo |
| OulMANE Oy | Espoo |
| Oulu Trading Ltd Oy | Espoo |
| Oulv-International | Espoo |
| Ourinko Oy | Espoo |
| Outdoor Design OD | Espoo |
| OUTDOOR HELSINKI | Espoo |
| Outdoorians | Espoo |
| Outegra Oy | Espoo |
| Outin ompelimo | Espoo |
| OutsourceIT Oy | Espoo |
| OuZZa Oy | Espoo |
| OvalTime Oy | Espoo |
| Overcs | Espoo |
| Overplan Oy | Espoo |
| Overtime Productions | Espoo |
| OVH-Valmennukset Oy | Espoo |
| Oviola Oy | Espoo |
| Ovitz Avoin yhtiö | Espoo |
| OXAIN | Espoo |
| Oxvivo Oy | Espoo |
Yritysesittely