Over here you will find free vector brand logos in Illustrator, EPS, Corel Draw format..

Brand Vector Logos start with 'C' letter

Czech Mate
Core Competency
Casa Pessoal Hospital Famalicao
CHKS Chelmianka Chelm
Coke Studio
Chesapeake Energy
Circuito D'elas de Beach Tennis
Cleethorpes Town FC
Corner of Art Media Production
Centrale Canine