| Company name | Reg. code |
|---|---|
| STRAVO GRUPP OÜ | 16176729 |
| STRADA GRUPP OÜ | 17290657 |
| STRATOS GRUPP OÜ | 12995940 |
| ESTRÄV GRUPP OÜ | 11040617 |
| Litegrav Bio Holdings OÜ (former name Strada Grupp OÜ (asutamisel)) | (asutamisel) |
| PH BUILDING OÜ (former name Grupp OÜ) | 12940435 |