| Company name | Reg. code |
|---|---|
| STRUUGA OÜ | 16620650 |
| STRIGA OÜ kustutatud | 16400380 |
| STRUSA OÜ | 17455727 |
| STRAGA OÜ | 16217894 |
| STRUUM OÜ | 14186646 |
| STRUG OÜ | 12227619 |
| STRUG.COM OÜ | 12375780 |
| LIGHTSPARK PAYMENTS EUROPE AS (former name Striga Technology OÜ) | 16298772 |
| RUUGA GRUPP OÜ | 10944825 |
| THT EHITUS OÜ (former name Truusa Construction OÜ) | 14323876 |