| Company name | Reg. code |
|---|---|
| SKIRON OÜ | 14778571 |
| SKEIRON OÜ kustutatud | 11906548 |
| SKYRON OÜ | 12972174 |
| SKHRON OÜ | 16921920 |
| SKYRON INVEST OÜ kustutatud (former name Skyron Group OÜ) | 14396272 |
| KIRON SOLUTION OÜ (former name NeoEstate OÜ) | 16341217 |
| ASPIRON OÜ | 10335776 |
| KIVRON OÜ | 10409569 |
| PAIRON OÜ | 11952784 |
| SAARON OÜ | 14053081 |
| MIKRON OÜ kustutatud | 11989066 |
| BAIRON OÜ | 14037538 |
| EPIRON OÜ (former name Lux Credit OÜ) | 12689351 |
| AKERON OÜ | 12801716 |
| KITRON OÜ kustutatud | 12560282 |
| AVIRON OÜ | 14012917 |
| HEIRON OÜ | 14112553 |
| AMIRON OÜ | 12235694 |
| EMIRON OÜ | 11524172 |
| SAIGON OÜ | 16964585 |
| EVIRON OÜ kustutatud | 14572496 |
| AHIRON OÜ | 14502946 |
| SAIMON OÜ | 12203412 |
| ALIRON OÜ | 12163244 |
| SKITOP OÜ | 17003422 |
| SKIBIN OÜ kustutatud | 10193419 |
| SKIMEN OÜ | 10813336 |
| SKIPTRON OÜ | 12909491 |
| SKIDREN OÜ | 16701650 |
| SKIVOR OÜ | 16367895 |
| SATRON RD OÜ | 10757477 |
| AVIRON INVESTMENT OÜ | 17005757 |
| SAMRON INVEST OÜ kustutatud (former name Samron Invest UÜ) | 14917156 |
| KAIRON GRUPP OÜ kustutatud | 11709121 |
| SATRON MEDICAL OÜ | 14956624 |
| KHIRON GROUP OÜ | 17370959 |
| KIRGON KINNISVARA OÜ | 16134783 |
| NEIRON TECHNOLOGY OÜ | 17122902 |
| DAIRON PLUSS OÜ | 10968040 |
| MAIRON GROUP OÜ | 12994572 |
| APIRON TECH OÜ | 17424780 |
| AVIRON HALDUS OÜ | 17389829 |
| AMIRON SERVICE OÜ kustutatud (former name Amiron Building OÜ) | 14229686 |
| MAIRON INVEST OÜ kustutatud | 10864285 |
| FAIRON INVEST OÜ | 12524004 |
| NOIRON DISAINISTUUDIO OÜ | 14195036 |
| GAIRON PRODUCTION OÜ | 14215661 |
| SAIMON EHITUSE OÜ | 16554522 |
| SAMIRON EHITUS OÜ | 12989536 |
| MEIRON GRUPP OÜ kustutatud | 12121789 |