| Company name | Reg. code |
|---|---|
| NICKOFF OÜ kustutatud (former name Happy Kringel OÜ) | 14190530 |
| ROCKOFF OÜ | 10457404 |
| MINKOFF OÜ | 14697795 |
| NIKOFF GROUP OÜ kustutatud | 14996374 |
| NICOPHARMA OÜ (former name Nicofy OÜ) | 14991164 |
| WYCKOFF INVESTMENT OÜ | 16909451 |
| IKOFF WORK OÜ | 16516964 |
| IKOFF HOLDING OÜ | 16904057 |