| Nimi | Paikkakunta |
|---|---|
| Blå-Trading Oy | Helsinki |
| BLÄÄF | Helsinki |
| Blaast Applications Oy | Helsinki |
| Blabla Productions | Helsinki |
| Black and White Records Oy | Helsinki |
| Black Box Finland Oy | Helsinki |
| Black Dot. eDitorial Office | Helsinki |
| Black Market ky | Helsinki |
| Black Moose Group Oy | Helsinki |
| Black or White markkinointi Oy | Helsinki |
| Black Press Oy | Helsinki |
| Black Stone Oy | Helsinki |
| Black wing | Helsinki |
| Black-Box IT | Helsinki |
| Black2nen Product. | Helsinki |
| Blackheads Oy | Helsinki |
| Blacklist Productions & Community | Helsinki |
| Blackout Lighting Finland Oy | Helsinki |
| Blackster Oy | Helsinki |
| Blandor Creativity Oy | Helsinki |
| Blank G Design | Helsinki |
| Blast Music | Helsinki |
| BLE Avoin yhtiö | Helsinki |
| Bleading | Helsinki |
| Bleeding Heart/Nina Laine Designs | Helsinki |
Yritysesittely