| Company name | Reg. code |
|---|---|
| S PANEL OÜ (former name Izopanel OÜ) | 12443375 |
| PANEL SYSTEM OÜ kustutatud | 11299545 |
| SIIKO PANELS OÜ | 17022908 |
| ATRK ENTREPRENAD OÜ kustutatud (former name Scan Panel OÜ) | 12894451 |
| TRGEH TRADE OÜ (former name Salesing OÜ) | 12528025 |
| AVIUS PARTNER OÜ kustutatud (former name Scan Panel OÜ) | 12844996 |
| STRUCTURAL INSULATED PANEL EESTI OÜ kustutatud | 10782564 |