| Company name | Reg. code |
|---|---|
| AVIRON OÜ | 14012917 |
| AVIRON HALDUS OÜ | 17389829 |
| AVIRON TEENUS OÜ (former name Aviron Teenus UÜ) | 16939570 |
| AVIRON INVESTMENT OÜ | 17005757 |
| AVITRON OÜ (former name Adteh OÜ) | 12722520 |
| AVIROX OÜ | 12490647 |
| AVILON AUTO OÜ | 12219548 |
| AVIREN EHITUS OÜ (former name Aviren Ehitus UÜ) | 16867801 |
| AVIREN GRUPP OÜ | 16982465 |
| AVIRO INVEST OÜ | 14305298 |
| AVORON OÜ | 14349657 |
| ALVIRON OÜ | 10206955 |
| TVIRON OÜ kustutatud | 14238455 |
| AMIRON OÜ | 12235694 |
| NAVIRON OÜ | 16832205 |
| EVIRON OÜ kustutatud | 14572496 |
| AHIRON OÜ | 14502946 |
| ALIRON OÜ | 12163244 |
| FUCITOSCHICI BARABARSA OÜ (former name Vutiran OÜ) | 16801222 |
| AIRON OÜ | 10557407 |
| AVERON PROFF OÜ (former name Averon Proff UÜ) | 14141218 |
| AVERON KINNISVARAHALDUS OÜ kustutatud | 10729771 |
| AVYRON TECHNOLOGIES OÜ | 17473636 |
| AVARON PARTNERS OÜ kustutatud | 12135426 |
| APIRON TECH OÜ | 17424780 |
| AMIRON SERVICE OÜ kustutatud (former name Amiron Building OÜ) | 14229686 |
| VAIRON WOOD OÜ | 14949179 |
| AVARON FINANCE OÜ kustutatud | 11446749 |
| AVERON VARAHALDUSE OÜ kustutatud | 10514817 |
| AVERON INTERNATIONAL OÜ kustutatud | 12617705 |
| AVERON MARKETING OÜ (former name TP Videography OÜ) | 14270542 |
| VIRON MATKAT OÜ | 17006780 |
| AIRON FOODS OÜ | 14438131 |
| VIRON KONEPAJA OÜ kustutatud | 14573828 |
| RGR AIRON OÜ | 10711699 |
| VIRON TP OÜ | 10954746 |
| AVIKTON OÜ kustutatud | 12457609 |
| AVITSON OÜ kustutatud | 14765953 |
| AVIROGEN OÜ | 17431313 |
| AVISTON OÜ kustutatud | 16148762 |
| ADIROL OÜ | 12388989 |
| ACVILON OÜ | 16506552 |
| AVIERO OÜ kustutatud | 12823770 |
| AVICOM OÜ kustutatud | 11112662 |
| ADVICON OÜ | 16462263 |
| AKERON OÜ | 12801716 |
| ADARON OÜ kustutatud | 11790075 |
| AABRON OÜ kustutatud | 12237463 |
| AIRCON OÜ | 16610611 |
| AVIRENT OÜ | 11374005 |