Paris - Île-de-France
- Clow
- Cloé
- Cludy
- Clupot
- Cluzelle
- Clynckemaillie
- Clédat
- Clénet
- Cmc
- Cnudde
- Co Invest Sas
- Coadour
- Coant
- Coatantiec
- Coatsaliou
- Coban
- Cobast
- Cobb
- Cobelli
- Cobetto
- Coblentz
- Cobzaru
- Cocagnac
- Cocagne
- Cocaign
- Cocard
- Cocchi
- Coccia
- Cocco
- Cochaud
- Cochi
- Cochinard
- Cochis
- Cochonneau
- Cochrane
- Cochu
- Cocrelle
- Cocu
- Coda
- Codant
- Codeluppi
- Codevelle
- Codur
- Coedel
- Coeffard
- Coello
- Coenen
- Coeroli
- Coeslier
- Coeugniet
- Coeur-joly
- Coeurdevey
- Coeytaux
- Coffe
- Coffey
- Coffie
- Coffrant
- Cogat
- Cogedic
- Cogerino
- Coggio
- Coggiola
- Cogis
- Cogitore
- Cognasson
- Cognault
- Cogneau
- Cogniet
- Cognon
- Cogo
- Cogos
- Cogranne
- Cohas
- Cohen Adad
- Cohen Aloro
- Cohen Bacrie
- Cohen Nehamia
- Cohen Scali
- Cohen Tannoudji
- Cohen Uzan
- Cohen-addad
- Cohen-carraud
- Cohen-scali
- Cohen-tannoudji
- Cohen-zardi
- Cohendy
- Cohonner
- Cohu
- Coifard
- Coiffure
- Coindet
- Coindre
- Coineau
- Coint
- Cointat
- Coiquaud
- Coirard
- Coirier
- Coirin
- Coiseur
