| Nimi | Paikkakunta |
|---|---|
| Olari Jõhvik Tmi | Helsinki |
| Olarin Liikuntahalli Oy | Helsinki |
| Olatec Oy | Helsinki |
| Olav design by Jussi Salminen | Helsinki |
| Olavi Media Tmi | Helsinki |
| Old Jerusalem | Helsinki |
| Old Town Interactive Oy Ltd | Helsinki |
| OLDI SCAND | Helsinki |
| Olecom | Helsinki |
| Oleva Oy | Helsinki |
| OlFix | HELSINKI |
| Olga Dmitriev | Helsinki |
| Olga Karpova | Helsinki |
| Olga Nekrassova | Helsinki |
| OLGA TOPPARI | Helsinki |
| Oligomer Oy | Helsinki |
| Oliivi Autot Oy | Helsinki |
| Olini Oy | Helsinki |
| Oliotalo Oy | Helsinki |
| Olir Corona Oy | Helsinki |
| Olive Tree | Helsinki |
| OLIVER UIBO | Helsinki |
| Olivia Transport Oy | Helsinki |
| Olivier Clavier | Helsinki |
| OLIVIER SF | Helsinki |
Yritysesittely