| Ettevõtte nimi | Reg. kood |
|---|---|
| FENTRESS OÜ | 10863127 |
| FORTRESS OÜ | 12739704 |
| DESTRESS OÜ kustutatud | 10355388 |
| FINTRESSA OÜ | 16276508 |
| RENTREST OÜ | 12953768 |
| INTRESS OÜ | 12567255 |
| ENTRES OÜ | 16054216 |
| DIGITAL FORTRESS OÜ kustutatud | 16216535 |
| FORTRESS MAXIMUS OÜ kustutatud | 12101634 |
| WINE HUNTRESS OÜ | 16525785 |
| INTEGRAL FORTRESS OÜ kustutatud | 14133302 |
| ETERNAL FORTRESS OÜ | 14974740 |
| SOUND FORTRESS OÜ | 11403675 |
| FORTRESS OCCIDENT HOLDING OÜ kustutatud | 12950014 |
| SPIRE FORTRESS TECHNOLOGIES OÜ | 12267435 |
| DATA CENTRES ESTONIA OÜ | 17177820 |
| ESTONIAN CALL CENTRES OÜ kustutatud | 14545281 |
| BUSINESS CENTRES MANAGEMENT ESTONIA OÜ | 11628003 |
| MXTC DATA MANAGEMENT CENTRES OÜ kustutatud | 14285176 |
| ESTONIAN CENTRES COMPANY NO 1 OÜ | 14379196 |
| ZAUM STUDIO OÜ | 12929505 |
| ETESTWARE OÜ | 12485623 |
| COMPOTEXA OÜ kustutatud | 14444108 |