Paris - Île-de-France
- Cloquet
- Cloquette
- Clorennec
- Closier
- Clotagatide
- Clotteau
- Clouaire
- Clouard
- Clouet D Orval
- Clougher
- Clouseau
- Clouteau
- Cloutier
- Clouté
- Clow
- Cloé
- Cludy
- Clupot
- Cluzelle
- Clynckemaillie
- Clédat
- Clénet
- Cmc
- Cnce
- Cnudde
- Co Invest Sas
- Coadour
- Coant
- Coatantiec
- Coatsaliou
- Coban
- Cobanoglu
- Cobast
- Cobb
- Cobbold
- Cobelli
- Cobetto
- Cobian
- Coblentz
- Cobzaru
- Cocagnac
- Cocagne
- Cocchi
- Coccia
- Cocco
- Cochaud
- Cochi
- Cochinard
- Cochis
- Cochonneau
- Cochrane
- Cochu
- Cock
- Cocogne
- Cocrelle
- Cocu
- Coda
- Codant
- Codeluppi
- Codevelle
- Coedel
- Coeffard
- Coello
- Coelo
- Coenen
- Coeslier
- Coeur-joly
- Coeurdacier
- Coeurdevey
- Coeytaux
- Coffe
- Coffey
- Coffie
- Coffrant
- Cogat
- Cogedic
- Cogerino
- Coggio
- Coggiola
- Cogis
- Cogitore
- Cognasson
- Cognault
- Cogneau
- Cognee
- Cogniet
- Cognon
- Cognyl
- Cogo
- Cogranne
- Cohen Adad
- Cohen Aloro
- Cohen Bacrie
- Cohen Coudar
- Cohen Scali
- Cohen Tannoudji
- Cohen Uzan
- Cohen-addad
- Cohen-carraud
- Cohen-scali
