| Ettevõtte nimi | Reg. kood |
|---|---|
| USEFUL OÜ | 12801478 |
| USEFUL FILMS OÜ | 12753779 |
| USEFUL HANDS OÜ | 11482672 |
| USEFUL SYSTEMS OÜ | 17370540 |
| USEFUL UNDERTAKINGS OÜ | 16965582 |
| THE REALLY USEFUL FINANCE COMPANY OÜ | 16618475 |
| MUSEFUL OÜ | 17184843 |
| MUSEFUL MEDIA OÜ | 17081072 |
| REUSEFUL OÜ | 12398835 |
| USFUN OÜ | 16595840 |
| TEFUL OÜ | 16346628 |
| SEOUL THERAPY OÜ | 16518176 |
| SUUR SEOUL OÜ | 17283025 |