| Company name | Reg. code |
|---|---|
| ESMECON OÜ | 11266161 |
| ESMERIN OÜ (former name Wagner OÜ) | 16320712 |
| ESMEKOR OÜ | 11291012 |
| ESMACOM OÜ | 10952049 |
| ESMEKO EHITUS OÜ | 16277293 |
| ERMECON OÜ kustutatud | 12827064 |
| ESTECON SOLUTIONS OÜ (former name Mespro OÜ) | 16325052 |
| ENGECON OÜ | 14253101 |
| OSTECON OÜ | 11466919 |
| ELEMCON OÜ | 14655331 |
| ASMERON OÜ | 10887760 |
| EMECRON OÜ (former name OÜ inaro) | 16386473 |
| ERMECOL OÜ kustutatud | 10454937 |
| ESTECOL OÜ | 10257786 |
| HEMECON OÜ | 10731354 |
| ESTERON OÜ kustutatud | 11975590 |
| ELSECON OÜ kustutatud | 16173493 |
| EXPECON OÜ | 12811525 |
| SOMECON OÜ | 14885456 |
| VESMERON OÜ kustutatud | 11412059 |
| ENTECON OÜ | 16286145 |
| SEVECON OÜ | 12929712 |
| SEMICON OÜ | 12895172 |
| AMECON OÜ | 10717495 |
| ESMON OÜ | 12192335 |
| ESTELON HOLDING OÜ | 17193575 |
| ESTERON INVEST OÜ kustutatud | 11027568 |
| BESTECON SERVICE OÜ kustutatud (former name Bestecon Service UÜ) | 16330780 |
| ESTMACON GRUPP OÜ kustutatud | 11113606 |
| PUMECON ELEMENT OÜ kustutatud | 12759316 |
| SEMERON TRADE OÜ kustutatud | 12040157 |
| EXTECON CAPITAL OÜ | 16687631 |
| ARMECON EHITUS OÜ | 12152198 |
| OSTECON KINNISVARA OÜ | 14223005 |
| ESTECOR INVEST OÜ kustutatud | 11196532 |
| HESTECON PRO OÜ | 14895934 |
| EMERON TEENUS OÜ (former name Emeron Teenus UÜ) | 16654034 |
| ESSCON GRUPP OÜ | 16989154 |
| ESECOM INTERNATIONAL OÜ | 11502176 |
| ENECON CONSULT OÜ | 14814367 |
| ELMECO TAXI OÜ (former name Econook OÜ) | 14768868 |
| AMECON HALDUS OÜ | 17431193 |
| EMETON INVEST OÜ kustutatud | 16280318 |
| EMEKON KINNISVARA OÜ (former name Emekon Trade UÜ) | 16825079 |
| EMERON GRUPP OÜ (former name Emeron Grupp UÜ) | 16617381 |
| EMETON EHITUS OÜ kustutatud | 14738896 |
| EVECON TÕLLISTE OÜ (former name Evecon Lääneranna OÜ) | 16104003 |
| RAUDSEPA BESS RIGHTS OÜ (former name Evecon Kopli OÜ) | 16104888 |
| EVECON PÜSSI OÜ (former name Evecon Solar 431 OÜ) | 16104115 |
| RAUDSEPA BESS OÜ (former name Evecon Tsirguliina 2 OÜ) | 16104960 |