| YourSite B.V. | South Holland |
| YouTransfer | |
| Youvia | Overijssel |
| Youwe | South Holland |
| YP Your Partner B.V. | |
| Yucat B.V. | Utrecht |
| Yuki | |
| Yummygum | North Holland |
| Yuna B.V. | South Holland |
| Z-RTV iB | Overijssel |
| Z.B.C. Automatisering | North Brabant |
| Zaga Digital Marketing | |
| ZapMeta | Overijssel |
| ZCC-IT | Gelderland |
| Zedrox | |
| ZEEF | North Holland |
| Zeeuws Zakelijk | Zeeland |
| Zegenrijk | North Brabant |
| Zeke Internet Services | Flevoland |
| Zenid | Limburg |
| Zenrix Shop | South Holland |
| Zenz Technologies | North Holland |
| Zeo B.V. | Utrecht |
| Zeppelin | North Holland |
| Zerospace ICT Services B.V. | |
| Zest Software B.V. | |
| Zetacom B.V. | South Holland |
| Zevenaar Elektronica & Sensoren B.V. | Gelderland |
| Zicht online | South Holland |
| Zietuwel.nl | Utrecht |
| Ziezotec Electronics B.V. | South Holland |
| Zig Websoftware | North Holland |
| Ziggo | |
| Ziik | |
| Zion-IT | Utrecht |
| Ziphius Vaccines N.V. | |
| Zivver | North Holland |
| ZoBio B.V. | |
| Zoe Mickley Gillenwater | North Holland |
| ZOLA Electric | North Holland |
| ZonnepanelenDelen B.V. | |
| Zoof-It | North Brabant |
| ZorgOplossingen | Groningen |
| Zotonic | North Holland |
| Zuyd Hogeschool | Limburg |
| ZWRTWT | South Holland |
| Zylom | North Brabant |
| Zyntax Consulting B.V. | North Holland |