| ID | Name | Type |
|---|---|---|
| #15711 | Zoltan Janosy | + |
| #16666 | Zoltán Németh | + |
| #15712 | Zomba Books | Z |
| #15713 | Zoo Soft | Z |
| #15714 | Zool00k | ? |
| #17905 | Zoomsoft | S |
| #18507 | Zorba | + |
| #16497 | ZozoSoft | Z |
| #19998 | Zoë Kirk-Robinson | + |
| #15715 | Zsolt Trencsenyi | ? |
| #19638 | Zsolt Vajda | - |
| #15716 | Zuheir Urwani | ? |
| #15717 | Zuidnederlandse Uitgeverij Aartselaar | ? |
| #23258 | Zuiko21 | - |
| #15718 | Zuniga Software | Z |
| #20031 | Zunk Custom Electronics | P |
| #19244 | Zuzan Znovuzrozený | - |
| #19317 | Zuzu | - |
| #15719 | Zveza Organizacij za Tehnicno Kulturo Slovenije | ? |
| #15720 | Zydro | ? |