| Company name | Reg. code |
|---|---|
| KELFLEUR OÜ | 17389216 |
| KELLER MEDIA OÜ (former name Stallion Rockshore Corporation OÜ) | 12618219 |
| ART KELLER OÜ | 16837272 |
| HARDY KELLER GROUP OÜ | 16255558 |
| KELLER JA KO OÜ | 10064231 |
| SILVI KELLER HAMBARAVI OÜ | 11056015 |
| STULRUTUF OÜ (former name Pony OÜ) | 14006727 |