Firma C - Klæbu
- Conoptica AS
- Courage
- Crudo DA
- Capiro AS
- Ciljan AS
- Conans AS
- Conoptica Næringseiendom AS
- Claus Brøttem
- Custom Builds AS
- Ctm Eiendom AS
- Conoptica Eiendom AS
- Czaplinska Skulpturverksted
- Ctm Lyng AS
- Christine Bertelsen
- Conttra Bygg DA
- Charlott Magelssen
- Creative Demise DA
- Claus Andreas Brøttem
- Carl Ole Krokum
- Conscious Leadership Development AS
- Coop Extra Klæbu
- Center for Transformative Leadership AS
- Conejeros Monsalve Jessica Javiera
- Celina Stoum Svendsen Danselærer
- Crazy Paint Kevin Kristiansen