| Company name | Reg. code |
|---|---|
| WINTEC24 OÜ | 14118219 |
| WINTEC WOOD OÜ | 12864869 |
| WINTEC GRUPP AUTO OÜ | 14946465 |
| WINTECH ESTONIA OÜ kustutatud | 11447402 |
| WINTECH COMPETIÇÃO OÜ | 16669047 |
| WINTEK OÜ kustutatud | 10353596 |
| WINTEL OÜ kustutatud | 14586877 |
| ARONS BYGG & SANERING OÜ kustutatud (former name Wintech Solution OÜ) | 14049777 |
| WINTER CONSULTING OÜ kustutatud | 14414024 |
| WINTER SPIRIT OÜ | 12593809 |
| WINTEL CORPORATION OÜ | 14258630 |
| WINTER INVEST OÜ kustutatud | 12020597 |
| CUMBUCO WINTER OÜ kustutatud (former name CleanEarth OÜ) | 16270517 |
| WINTER-POST OÜ kustutatud | 14753430 |
| WINTER GREEN OÜ | 17048011 |
| WINTER FOOD OÜ kustutatud (former name Painter Kinnisvara OÜ) | 12470225 |
| WINTER VENTURES OÜ kustutatud | 14963742 |
| WINTER SUN HOLDING OÜ kustutatud | 12435007 |
| WINTER MEDIA GROUP OÜ | 10890963 |
| DJ WINTER CONSULTING OÜ | 16465267 |
| WINTER SUN MUSIC OÜ | 16857798 |
| OULU INTERNATIONAL SUMMER AND WINTER PROGRAMME OÜ | 14043025 |
| PARTEM GRUPP OÜ kustutatud (former name OÜ Winter Park Estonia) | 12171847 |
| KALMAR AUTOMOTIVE OÜ (former name Marcus Grönholm Winter Experience OÜ) | 14371214 |
| KALMAR HOLDING OÜ (former name OÜ Milius Holding) | 14232027 |
| TINTEC OÜ | 16296793 |
| FRENERGO OÜ (former name OÜ WINECO) | 12838903 |
| INVICTA WINES OÜ (former name I.WINE OÜ) | 16582918 |
| FINTEC EKSPERDI OÜ | 10190243 |
| SINTEC TRADING OÜ kustutatud (former name Aura Trading OÜ) | 12213600 |
| SINTEC EHITUS OÜ (former name SinTec System OÜ) | 16101660 |
| SINTEC DAR OÜ | 17449885 |
| CARNORDICA OÜ kustutatud (former name Winner Project OÜ) | 14108089 |
| 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 |
| INTEC EHITUS OÜ | 10729481 |
| INTEC SOLUTIONS OÜ | 10863469 |
| INTEC AUTO OÜ kustutatud | 12706780 |
| INTEC OIL OÜ kustutatud | 10710754 |
| INTEC HOLDING OÜ | 10699478 |
| RVPROGRAMMING OÜ (former name Wind Winder OÜ) | 14877451 |
| WINGED OÜ | 14298244 |
| WINECO OÜ (former name ABNinvest OÜ) | 16082626 |
| WINTREX OÜ kustutatud | 14236568 |
| WINTEKA OÜ | 16752222 |
| WINNER OÜ | 14462572 |
| WINKEL OÜ | 11336950 |
| WINNEX OÜ kustutatud | 14355758 |
| WINSECT OÜ kustutatud | 12776059 |