Firma C - Finnsnes
- Citybag
- CAS
- Crossfit Senja AS
- Cubus Finnsnes
- Consept Investment AS
- Chali Saoud
- Care Holding AS
- Csm Holding AS
- Camilla Karolius
- Candé Holding AS
- Campus Norge AS
- Cecilie Samuelsen
- Carnifex Crew MC
- Clas Ohlson Finnsnes
- Coop Extra Olderhamna
- Carnifex Crew MC
- Christine Henriksen Kulturtjenester
- Circle K Finnsnes
- Corner Jenssen Agentur AS
- Cichosz Bygg Service
- Cantemus Kjell K Øvereng
- Caminante - Travels, Events & Adventures AS
- Crux Film Eirik Nicolai Heim
- Caminante - Travels, Events & Adventures - Olsen Tours