| WindSoft | Bucharest |
| Wings Consulting S.R.L. | |
| Winsoft Support | |
| Wisedigital.tech | |
| WitchHut LLC | Bucharest |
| Wizrom Software | Bucharest |
| Wolfpack Digital | Cluj |
| Wolfpack Digital | |
| Work In Progress | Cluj |
| WorldIT | Bucharest |
| Worldnet Trading S.R.L. | Bucharest |
| WriteGPT | |
| WSite | |
| X2 Mobile | |
| x7.ro | Bihor |
| Xcodes | |
| XDESKSOFTWARE | Prahova |
| Xentient Labs | |
| XFactorApp Software Solutions Ltd | Bucharest |
| xHost.ro | |
| XMETA | Sibiu |
| Xpath.global | |
| Xplication | |
| XSoft Development | |
| XSoft-Tech S.R.L. | |
| Xsure Ltd | |
| Xtreme Freelance | Bihor |
| Xylio Info S.R.L. | Bucharest |
| YAATD | |
| Yarooms International S.R.L. | Bucharest |
| Yellow Menu | Bucharest |
| Yellow! GNU | |
| Yet Another Telephony Engine | Bucharest |
| Yload Global S.A. | |
| Yoosend | Bucharest |
| Yoseo | Bucharest |
| YourCHOICE | Iași |
| Yum Software | |
| Z Spot Media S.R.L. | Bucharest |
| Zaheen | Bucharest |
| Zalmotek | |
| ZAO Media | |
| ZayaAI | |
| ZegaSoftware | |
| Zeren Software | |
| Zeus Service | Bucharest |
| Zexsoft | |
| Zitec | Bucharest |
| Zmuth | Bucharest |
| ZONK Digital | Bucharest |