| Company name | Reg. code |
|---|---|
| KATREM INVEST OÜ | 16546385 |
| KATROM INVEST OÜ kustutatud | 11291779 |
| KAARET INVEST OÜ | 14161646 |
| KATKER INVEST OÜ | 11531309 |
| KAAREL KIIL INVEST OÜ | 16721405 |
| DESIGN STRATEGY OÜ (former name Kaire Invest OÜ) | 12074950 |
| RACIONALE OÜ (former name OÜ Kaarel K Invest) | 12366605 |
| OCEAN FLOW OÜ (former name TREM Baltic Invest OÜ) | 14694756 |