| Company name | Reg. code |
|---|---|
| EXPECON OÜ | 12811525 |
| EXPERION OÜ | 17098026 |
| EXPOCOM OÜ | 11558296 |
| EXPECTO PATRONUM OÜ kustutatud (former name Wedding expert OÜ) | 14591915 |
| EXPECT PULSE OÜ | 16943086 |
| EXTECON CAPITAL OÜ | 16687631 |
| ENGECON OÜ | 14253101 |
| MAPECON OÜ kustutatud | 12122041 |
| LEXECON OÜ | 12168667 |
| ESMECON OÜ | 11266161 |
| ELSECON OÜ kustutatud | 16173493 |
| ENTECON OÜ | 16286145 |
| ERMECON OÜ kustutatud | 12827064 |
| EXECON GROWTH OÜ | 17478208 |
| EVECON OÜ (former name Pähklimäe Põllud OÜ) | 10340286 |
| EPICON OÜ kustutatud | 12814570 |
| ERPCON OÜ | 16322823 |
| ESTECON SOLUTIONS OÜ (former name Mespro OÜ) | 16325052 |
| EXCELON EXCHANGE OÜ kustutatud (former name ServiceBank OÜ) | 14443847 |
| EVECON RISTI OÜ (former name Pataste Põllud ja Metsad OÜ) | 10816990 |
| EVECON RAJU OÜ | 17131605 |
| ENECON CONSULT OÜ | 14814367 |
| EYECON ENGINEER OÜ | 14697996 |
| EXEKON RENTAL OÜ | 17449046 |
| 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 |
| EVECON SOLAR 460 OÜ (former name UÜ Evecon Solar 460) | 16104925 |
| EVECON HOLDRE OÜ (former name UÜ Evecon Solar 453) | 16104859 |
| EVECON TÕLLISTE OÜ (former name Evecon Lääneranna OÜ) | 16104003 |
| EVECON VALGA OÜ (former name Riigimetsa OÜ) | 10817021 |
| EVECON KOSE OÜ (former name UÜ Evecon Solar 462) | 16104948 |
| EVECON SOLAR 423 OÜ (former name UÜ Evecon Solar 423) | 16103972 |
| EVECON SOLAR 404 OÜ (former name UÜ Evecon Solar 404) | 16103392 |
| EVECON SOLAR 459 OÜ (former name UÜ Evecon Solar 459) | 16104919 |
| EVECON KARITSA OÜ (former name UÜ Evecon Solar 449) | 16104351 |
| EVECON ARENDUSED OÜ (former name Räimaste Põllud ja Metsad OÜ) | 12874187 |
| EVECON KATKU OÜ (former name UÜ Evecon Katku) | 16103475 |
| EVECON KOOGISTE OÜ (former name UÜ Evecon Solar 450) | 16104368 |