| Company name | Reg. code |
|---|---|
| U-WIN OÜ (former name U-Win UÜ) | 14457520 |
| UTILITAS WIND OÜ (former name OÜ TCK Wind) | 16171123 |
| ULTRA WINDPOWER OÜ | 16565158 |
| WINES FROM UKRAINE OÜ | 17234647 |
| CARNORDICA OÜ kustutatud (former name Winner Project OÜ) | 14108089 |
| ARONS BYGG & SANERING OÜ kustutatud (former name Wintech Solution OÜ) | 14049777 |
| ULTRA ELEKTRIJAAM 3 OÜ (former name Ultra Wind OÜ) | 12585916 |
| MPCTECHNOLOGY OÜ (former name UÜ Winning enterprise) | 16270492 |
| I&P CONSTRUCT EXHIBIT OÜ (former name Windweb OÜ) | 16340531 |
| TRIMPEX BROS OÜ kustutatud (former name Winner Project OÜ) | 12956235 |
| VIKKULA ESTONIA OÜ kustutatud (former name Winner Team OÜ) | 12923000 |
| INDOOR ENVIRONMENT OÜ (former name Winner Project OÜ) | 14048743 |
| FRENERGO PRODUCTS OÜ kustutatud (former name Wineco Project OÜ) | 12184956 |
| EVECON WIND ARAVUSE OÜ (former name Evecon Wind OÜ) | 16103995 |