| Company name | Reg. code |
|---|---|
| ENGECON OÜ | 14253101 |
| ENGTECO OÜ kustutatud | 12830675 |
| ENGEROS OÜ kustutatud | 10667633 |
| ENGELSON OÜ kustutatud | 10918420 |
| ENGEROS FINANCE OÜ (former name Finecon Liising OÜ) | 16096054 |
| ENGEROS OTEPÄÄ OÜ | 11318225 |
| ENGON OÜ | 16187687 |
| ENTECON OÜ | 16286145 |
| PENGERON OÜ | 14580202 |
| INTECON OÜ kustutatud | 10840818 |
| ENLEKON OÜ | 11012035 |
| ESMECON OÜ | 11266161 |
| ANRECON OÜ | 14292644 |
| KERGECON OÜ kustutatud | 11558188 |
| ENVERON OÜ | 11340727 |
| ELSECON OÜ kustutatud | 16173493 |
| EXPECON OÜ | 12811525 |
| LENNECON OÜ | 17208590 |
| ERMECON OÜ kustutatud | 12827064 |
| ANGEMON OÜ | 14931506 |
| ENECON CONSULT OÜ | 14814367 |
| EGELON OÜ | 11132555 |
| ONECON OÜ | 14670313 |
| EVECON OÜ (former name Pähklimäe Põllud OÜ) | 10340286 |
| ENOCON OÜ kustutatud | 11492822 |
| ENECOM OÜ | 11510796 |
| ENTECO OÜ | 14984187 |
| RENTECON BALTIC OÜ kustutatud | 11662520 |
| ESTECON SOLUTIONS OÜ (former name Mespro OÜ) | 16325052 |
| EXTECON CAPITAL OÜ | 16687631 |
| INDECON HOME OÜ | 12842566 |
| EVECON RISTI OÜ (former name Pataste Põllud ja Metsad OÜ) | 10816990 |
| ENERON PROJEKT OÜ | 11610463 |
| EVECON RAJU OÜ | 17131605 |
| EYECON ENGINEER OÜ | 14697996 |
| EXECON GROWTH OÜ | 17478208 |
| EVECON SOLAR 451 OÜ (former name UÜ Evecon Solar 451) | 16104836 |
| EVECON LIHULA OÜ (former name Evecon Kullama OÜ) | 10816300 |
| EVECON SOLARPARKS 2 OÜ kustutatud | 16864582 |
| EVECON SOLAR 427 OÜ (former name UÜ Evecon Solar 427) | 16104013 |
| EVECON SINDI OÜ | 10340062 |
| EVECON SOLAR 437 OÜ (former name UÜ Evecon Solar 437) | 16104188 |
| EVECON LUNGU OÜ (former name UÜ Evecon Lungu) | 16103541 |
| EVECON KÄDVA OÜ (former name UÜ Evecon Kädva) | 16103529 |
| EVECON PÜSSI OÜ (former name Evecon Solar 431 OÜ) | 16104115 |
| EVECON MULGI OÜ (former name Evecon Land OÜ) | 10816642 |
| EVECON VASU OÜ (former name UÜ Evecon Solar 474) | 16105089 |
| EVECON MÄRJAMAA OÜ (former name Evecon Märjamaa UÜ) | 16104150 |
| EVECON TUULEPARK OÜ (former name Evecon Püssi Hoonestus OÜ) | 16104983 |
| EVECON SOLAR 440 OÜ (former name UÜ Evecon Solar 440) | 16104227 |