Marques
- C
- C2G
- Cables Direct
- CABLEXPERT
- Cadbury
- Caffesso
- Calgon
- Cambridge
- Camgloss
- Canderel
- Canon
- Canubo
- Canyon
- CAPTURE
- Carbonite
- CAREX
- Carson
- Case Logic
- Case-Mate
- CASIO
- Cat
- Caterpack
- Caterwrap
- Celestron
- CEP
- Chainway
- Challenge
- Champion
- Charge Amps
- Check Point Software Technologies
- Chenbro
- CHERRY
- Chicony
- Chief
- Chieftec
- CHRISTIE
- CIENA
- Cif
- Cillit Bang
- CINEVERSUM
- CipherLab
- Cirque
- Cisco
- CITIZEN
- CITRIX
- Clairefontaine