| Company name | Reg. code |
|---|---|
| UKUKUKU OÜ | 12714801 |
| PUKUPUKU OÜ | 17162853 |
| JUKUJUKU OÜ | 16958366 |
| UDUKUU OÜ | 14615061 |
| KUUKUKK DESIGN OÜ | 14527099 |
| KIREKU BUKUKU OÜ (former name Altinum Veod OÜ) | 14753401 |
| GANGAMA BUKUKU OÜ (former name SixtaWork OÜ) | 14380549 |
| KUKULU EHITUS OÜ | 14616807 |