| Ettevõtte nimi | Reg. kood |
|---|---|
| ZENGIN OÜ | 14942332 |
| ZENVIA OÜ | 17251404 |
| ZENSIB OÜ kustutatud | 14334621 |
| ZENTIX OÜ | 17346814 |
| ZENZEN OÜ | 17054247 |
| ZENLINE OÜ kustutatud (endine nimi Prostyle OÜ) | 12593577 |
| ZENRIX TALA OÜ (endine nimi German system OÜ) | 17140811 |
| ZENRIX WLA OÜ (endine nimi Heem OÜ) | 14770291 |
| ZENBIT TECH OÜ | 14912377 |
| ZENZIC BUSINESS OÜ | 14753855 |
| LENGIN OÜ | 16753782 |
| VUKAB GROUP OÜ (endine nimi Zenvia OÜ) | 17182519 |
| WENGEN OÜ | 11974432 |
| RENGINE OÜ | 16702566 |
| ENGINE24 OÜ (endine nimi BookBird OÜ) | 16928046 |
| MERGIN OÜ | 16995678 |
| DENFIN OÜ | 16448866 |
| HENGEN OÜ kustutatud | 10868917 |
| TERGIN OÜ | 12560193 |
| RENDIN OÜ | 14672861 |
| TENGRIN OÜ | 10575500 |
| HENLIN OÜ | 14100283 |
| PINGIN OÜ | 17322133 |
| ENGINE OÜ | 17095588 |
| PENGUIN OÜ | 12836146 |
| ENGAIN OÜ kustutatud | 16290508 |
| DONGIN OÜ | 17428222 |
| HENDIN OÜ | 14905710 |
| 10ZENTI OÜ | 16743447 |
| ZENIT2021 OÜ kustutatud | 16227094 |
| ŽENVI OÜ | 10092307 |
| ELGIN OÜ (endine nimi Vegetology OÜ) | 16091803 |
| BEGIN OÜ | 12100876 |
| LLL ENGIN VENTURES OÜ | 17073463 |
| NEOGIN GROUP OÜ | 16208659 |
| ENGINE CAPITAL OÜ | 14870223 |
| MINDFUL PENGUIN OÜ | 17203693 |
| LENGVIN MARKETING OÜ kustutatud | 14926712 |
| SURVEY ENGINE OÜ | 12355783 |
| PENGUIN INVESTMENTS OÜ kustutatud | 14888029 |
| LOST PENGUIN OÜ | 14425861 |
| PENGUIN VILLAGE OÜ | 14821389 |
| PENGUIN INVESTMENTS 2 OÜ (endine nimi SHO Estonia Holding OÜ) | 16355296 |
| FTL ENGINE OÜ | 16760003 |
| ENGINE EXPERT OÜ | 14409974 |
| HENGEN KAUBANDUS OÜ | 14359227 |
| HENGEN TRADING OÜ | 17186765 |
| CODE ENGINE OÜ | 14653473 |
| PENGUIN CONSULT OÜ | 14207727 |
| EVENT ENGINE OÜ | 14165555 |