Paris - Île-de-France
- Cleuet
- Clevenot
- Clichy
- Clisson
- Clolus
- Clos
- Clouet Des Pesruches
- Cloux
- Clovis
- Clozier
- Co Invest Sas
- Cocco
- Coeffe
- Coezy
- Coffinet
- Coget
- Cohana
- Cohen Arazi
- Cohen Salmon
- Cohen Tanugi
- Cohen-tanugi
- Coillard
- Cointement
- Cointet
- Coirre
- Cojean
- Cojocaru
- Colardelle
- Colcanap
- Colecchia
- Coleno
- Colic
- Colignon
- Colladant
- Collart
- Colleau
- Collery
- Colletta
- Collion
- Collomp
- Colly
- Coloma
- Colomar
- Colon
- Colotte
- Colrat
- Com
- Combarel
- Combaz
- Combrouze
- Comets
- Cometti
- Comin
- Commere
- Comolet
- Comparat
- Comperat
- Conforti
- Congiu
- Connault
- Connolly
- Console
- Constanty
- Cont
- Contat Desfontaines
- Conter
- Coornaert
- Coquel
- Coquereau
- Coqueret
- Coraboeuf
- Corbe
- Corbi
- Cordeau
- Cordel
- Cordelle
- Cordoliani
- Cori
- Coric
- Corlay
- Corneau
- Cornillet
- Cornuat
- Cornuau
- Cornuault
- Cornudet
- Cornuot
- Corret
- Corruble
- Corsino
- Corty
- Corveller
- Corvi
- Cosialls
- Coslin
- Cosnard
- Cosqueric
- Cossa
- Costagliola
- Costanzo