| Company name | Reg. code |
|---|---|
| TEKSERAL OÜ kustutatud | 12346152 |
| TEKSIRAL OÜ | 10063668 |
| TEKSEL E OÜ | 10244697 |
| TEKSER GRUPP OÜ | 10363413 |
| TESSERAE OÜ (former name Helginvest OÜ) | 11026497 |
| HEKSTRAL OÜ | 12282723 |
| NESERAL OÜ kustutatud | 11381330 |
| TESSERA AGENCY OÜ | 17480843 |
| TAKERA BALTIC OÜ (former name Tekera Baltic OÜ) | 14419464 |