| Codice Edizioni |
| Columbia Global Reports |
| Columbia University Press |
| Comares |
| Continuum |
| Contraponto |
| Contrasto |
| Copernicus |
| Copernicus Center Press |
| Cornell University Press |
| Corte del Fontego |
| Cossee |
| Costa & Nolan |
| Council of Europe Publishing |
| Critique & Humanism |
| Cronopio |
| Cue Press |
| Czarne |
| D'Ettoris |
| Daimon Verlag |
| Davies Group |
| De Boeck |
| De Gruyter |
| Debate |
| Debolsillo |
| Dedalo |
| Delachaux et Niestlé |
| Delpire |
| Denoel |
| DeriveApprodi |
| Desjonqueres |
| Deutsche Rossini Gesellschaft |
| Diaphanes |
| Dituria |
| Donzelli |
| Droz |
| Duepunti |
| Duke University Press |
| Dumont |
| Duncker & Humblot |