| Company name | Reg. code |
|---|---|
| SET SET STUDIO OÜ | 14532479 |
| AET STUUDIO OÜ | 12968468 |
| CRISTEL STUDIO EST OÜ | 17140975 |
| SEO & MARKETING STUDIO OÜ | 16068164 |
| L'EST STUDIO OÜ | 14086991 |
| EST1 WOOD STUDIO OÜ | 14482095 |
| RESTUDIO.NET OÜ kustutatud | 12680566 |
| NYHAVN OÜ (former name GET STUDIO OÜ) | 17251048 |
| FESTIVALIMAJA OÜ (former name Studio Met. OÜ) | 14353417 |
| SEG ABROAD OÜ (former name SEG Study in Europe OÜ) | 14038992 |
| URTEKO OÜ (former name OÜ URMO-BUILDING) | 11075998 |