Firma C - Krokstadelva
- Camsafe Enk
- CutCab
- Celx AS
- Cancoating AS
- Chmr Holding AS
- Casaladislao Wilberg
- Cman Holding AS
- Cubus Krokstadelva
- Christiania Glasmagasin
- Cxs Growth AS
- Chaiyakornkij Pawat
- Cicilie Andersen
- Celius Holding AS
- Citycon Norway AS
- Change Buskerud Storsenter
- Coop OBS! Buskerud
- Caro Maskinservice Avd. Drammen
- Courageously Carrie Olsen
- Christensen & Langeland DA
- Chojecki Trening og Helse
- Cenito Thor Mohn-Løfqvist
- Clas Ohlson Alti Buskerud
- Colloquial Enk Statsautorisert Revisor Gunnbjørn Gulliksen
- Cera Klinikken ved S.H.Bråthen
- Circle K Norge AS Avd 57077 - Automat Krokstadelva
- Coop Sørøst SA Avd 222709 Obs Buskerud Faghandel
- Coop Sørøst SA Avd 222700 Obs Buskerud Felles & Ka