C (13 constructors) Nation Begin in Winner World Champion 
CantaranoUSA1950
CaterhamMalaysia2012
ChristensenUSA1959
ChristyUSA1953
CisitaliaItaly1952
ClemonsUSA1953
ColoniItaly1987
ConnaughtUnited Kingdom1952
ConnewUnited Kingdom1972
CooperUnited Kingdom1950WinnerWorld Champion
CopersucarBrazil1975
CornisUSA1959
CosworthUnited Kingdom1969





Constructors in activityWorld Champion in activityWorld Champion

Test cars and projects abandoned