| Wagenbach |
| Warsaw University Press |
| Waxmann |
| WBG - Wissenschaftliche Buchgesellschaft |
| Weidenfeld & Nicolson |
| Westfälisches Dampfboot |
| Wiley |
| William Collins |
| William Heinemann |
| World Scientific Publishing |
| Worldwatch Institute |
| Wydawnictwo "M" |
| Wydawnictwo Naukowe |
| Wydawnictwo Sejmowe |
| XY.it |
| Yale University Press |
| Ypsilon Editeur |
| Zanichelli |
| Zecchini Editore |
| Ziral |
| ZNAK |