| Company name | Reg. code |
|---|---|
| CRATECH OÜ | 14301030 |
| CRAFTECH OÜ | 16831097 |
| TRATECH OÜ | 12087093 |
| IRATECH OÜ kustutatud | 14747837 |
| CARTECH OÜ kustutatud (former name Cartech UÜ) | 12887221 |
| CRATER OÜ | 14574390 |
| DWLAB CRYTECH OÜ | 14898507 |
| CARTECH GARAGE OÜ kustutatud | 12140516 |
| COATTECH OÜ kustutatud | 14705520 |
| GEATECH OÜ kustutatud | 12530648 |
| CHRITECH OÜ | 12342483 |
| MARTECH OÜ | 14676089 |
| HERATECH OÜ | 12093521 |
| EDATECH OÜ kustutatud | 16275851 |
| PROTECH OÜ | 14667142 |
| HEATECH OÜ | 16889622 |
| CLAUTECH OÜ kustutatud (former name i-Digitize OÜ) | 16828362 |
| ANATECH OÜ | 17248081 |
| CLOTECH OÜ | 14095085 |
| ORUTECH OÜ | 11785814 |
| FIATECH OÜ | 10840729 |
| PRITECH OÜ | 16485465 |
| AREATECH OÜ | 10652672 |
| MARATECH OÜ | 16587875 |
| ERKATECH OÜ (former name OÜ Rentvin Grupp) | 14327029 |
| ARGATECH OÜ | 12746800 |
| CRONTECH OÜ kustutatud (former name StyleLab OÜ) | 12440856 |
| COMTECH OÜ | 10631380 |
| KREATECH OÜ | 16124543 |
| CRATE88 OÜ | 17259535 |
| PROTECH FISHER OÜ kustutatud (former name Kalanduse Toetusjuht OÜ) | 12225543 |
| MIRATECH VENTURES OÜ | 17021391 |
| PARTECH LABS OÜ | 17023956 |
| KARTECH GROUP OÜ | 16141607 |
| CUETECH SOLUTION OÜ | 17293584 |
| KRETECH SYSTEMS OÜ | 17424276 |
| JOATECH CONSULTING OÜ kustutatud | 16469383 |
| PROTECH STEEL OÜ kustutatud | 12203547 |
| PROTECH PLUS OÜ | 17146274 |
| ORETECH ESTONIA OÜ | 14747843 |
| ORITECH HOLDINGS OÜ (former name NetworkZone OÜ) | 14736555 |
| COSTECH MICROANALYTICAL OÜ | 10619829 |
| CORPTECH MOBILITY OÜ | 17366716 |
| CRYOTECH NORDIC OÜ (former name Cryotech Nordic AS) | 12438766 |
| CATTECH BALTICS OÜ | 12387613 |
| ARTTECH SERVICES OÜ kustutatud | 16228946 |
| ARTTECH GROUP OÜ | 17117597 |
| KARTECH EHITUS OÜ | 16090092 |
| HARTECH CONSULTING OÜ | 11693578 |
| FESTUNG CORETECH OÜ | 17467363 |