| Company name | Reg. code |
|---|---|
| BUUH OÜ | 14919698 |
| BUUR OÜ | 16847916 |
| BUUM OÜ (former name OÜ Retry) | 16503281 |
| KMK BUUM OÜ | 11530528 |
| BUUK GROUP OÜ | 17370333 |
| SECOND SUN OÜ (former name Buum Buum OÜ) | 12818929 |
| HUUH OÜ | 14516960 |
| BURUH OÜ | 14190725 |
| MUUH OÜ kustutatud | 16313385 |
| REVAL-BUCH OÜ | 14703113 |
| LANA-BUH OÜ | 11733243 |