| Sage Publications |
| Sal Terrae |
| Salerno Editrice |
| SalTerrae |
| Salvator |
| San Paolo Edizioni |
| Sapere 2000 |
| Scheiwiller |
| Schluetersche |
| Schocken Books |
| Schoeningh |
| Seagull Books |
| Seix Barral |
| Sellerio |
| Seuil |
| Sidgwick & Jackson |
| Sidillà |
| Siedler |
| SIGEM |
| Siglo XXI |
| Sigueme |
| Sillabe |
| Silvana Editoriale |
| Simon & Schuster |
| Sinauer |
| Sintesis |
| Sironi |
| SISMEL - Edizioni del Galluzzo |
| Smithsonian Books |
| Sociedade Brasileira de Psicanalise de Sao Paulo |
| Società Romana di Storia Patria |
| Spektrum |
| Sperling & Kupfer |
| Sphinx Agency |
| Springer |
| St. Andrew's Biblical & Theological Institute |
| St. Martin's Press |
| Stanford Studies |
| Stanford University Press |
| State University of New York Press |