| Company name | Reg. code |
|---|---|
| ITP HOLDING OÜ | 14518315 |
| ITOP HOLDING OÜ | 12681258 |
| ITS01 HOLDING OÜ (former name Installation OÜ) | 14755050 |
| HTP HOLDING OÜ | 10769138 |
| ATP HOLDINGS OÜ (former name Autoproceeding OÜ) | 14237332 |
| JTP-HOLDING ESTONIA OÜ | 11584613 |
| FUNNELSYSTEMS OÜ (former name OÜ Saluveer IT Holding) | 16462323 |
| STARTUPUP IT OÜ (former name ICV-IT Holding OÜ) | 14570451 |