Firma C - Sem
- Castelli AS
- Conzept AS
- Conturo AS
- Christensen Service
- Ccs Trading AS
- Christoffersen Consult
- Citroen Forhandlerforening
- Cs Byggpartner AS
- Cafb Invest AS
- Cramo AS Tønsberg
- Casa bygg AS
- Cheema Holding AS
- Creo Multiservice AS
- C-You AS
- Cramo AS (Tønsberg)
- Cornel Irofte
- Car Club Vestfold
- Coles Nikita Sandberg
- Carl Xv gate 6 AS
- Carrier Refrigeration Norway AS Avd. Tønsberg
- Coop Sørøst SA Avd 2598 Extra Semsbyen
- City Import og Dekor F Høines
- Cassini Skydiving Service Leonel Cristian Cassini Di Muro