| Company name | Reg. code |
|---|---|
| ELZION OÜ (former name LUCKY Silver OÜ) | 14625583 |
| ELION 4 OÜ | 14838474 |
| ELION 2 OÜ | 14838385 |
| ELION 3 OÜ | 14838468 |
| ELION 1 OÜ | 14838445 |
| ELVION CAPITAL OÜ | 16321077 |
| FUZION OÜ | 14633482 |
| ALBION OÜ | 11303264 |
| ELYSION OÜ kustutatud | 10159635 |
| ELDIOS OÜ | 14633430 |
| EMBION OÜ | 17418658 |
| ELTRON OÜ (former name Aktsiaselts Eltron) | 10180724 |
| FLXION OÜ | 16262966 |
| ENVION OÜ | 11197796 |
| ELVIOR OÜ | 10031987 |
| ELLIOT OÜ | 12225833 |
| ELICON OÜ kustutatud | 12682418 |
| ELYMON OÜ | 16230676 |
| ELETON OÜ | 14625229 |
| ALDION OÜ kustutatud | 14794854 |
| ELAIGN OÜ | 14121405 |
| ELKIEN OÜ | 16545701 |
| DELLION OÜ kustutatud | 16096444 |
| ECHION OÜ kustutatud | 14888006 |
| KELVION OÜ | 10820891 |
| ELWICON OÜ | 14198359 |
| ELLVON OÜ kustutatud | 12726771 |
| ELIFON OÜ kustutatud | 12862735 |
| ELDION TRANSP RAILWAY OÜ | 17076160 |
| HELION TRADING OÜ (former name Werrobau OÜ) | 12642175 |
| GELION TRADE OÜ | 12638908 |
| HELION TRUST OÜ | 16229101 |
| HELION GROUP OÜ (former name Helion OÜ) | 12493396 |
| ELEXON AUTOMATION OÜ | 12428944 |
| ELDRON EHITUS OÜ kustutatud | 11279554 |
| ELIVION COMPANY OÜ | 17383040 |
| CELION ESTONIA OÜ | 17472989 |
| HELION GRUPP OÜ kustutatud | 10680674 |
| ELATION AGENCY OÜ | 16654318 |
| ALBION REISID OÜ | 10130560 |
| ELERON REKLAAM OÜ | 11422365 |
| ELTRON PROJEKT OÜ kustutatud | 10273822 |
| ELERON EHITUS OÜ | 14634412 |
| ALBION STUDY OÜ kustutatud | 14761984 |
| ELEVON ÄRIMAJAD OÜ (former name Elevon Haapsalu OÜ) | 17012148 |
| HELION EHITUS OÜ | 11141471 |
| ELLIIN INVEST OÜ | 16517873 |
| ELEVON KINNISVARA OÜ | 12002381 |
| ALBION MOTORS OÜ | 10160868 |
| ELEISON TR OÜ kustutatud | 12551708 |