| Company name | Reg. code |
|---|---|
| ESSA OÜ kustutatud | 14153339 |
| ESSA ASI OÜ | 14966195 |
| ESSA TEENUSED OÜ | 17315920 |
| ESSA TECHNOPARK OÜ | 12356334 |
| ESSI OÜ | 12528195 |
| ESS.O.ESS OÜ | 16004359 |
| ESS.O.ESS KV OÜ | 16158134 |
| ESSE INVEST OÜ | 10706925 |
| ESSI AGRO OÜ | 12090445 |
| MALVA-ESSU OÜ | 10161721 |
| ESSY PREMIUM OÜ kustutatud | 12539655 |
| ESSE HALDUS OÜ kustutatud (former name Acc Infra OÜ) | 10422080 |
| ESSE ILUTUBA OÜ | 16143500 |
| ESSI TALU OÜ | 11310459 |
| ESSE INDUSTRY OÜ kustutatud (former name WireTeam OÜ) | 12397155 |
| ERRE2ESSE OÜ kustutatud | 12733512 |
| ESSE HOUSE OÜ | 16543335 |
| IN ESSE OÜ (former name Organic Sweets OÜ) | 14382689 |
| ESSU HOOLDEKODU OÜ kustutatud | 12836962 |
| ESS KINNISVARA OÜ | 10088800 |
| ESS SOFTWARE OÜ | 17282959 |
| ESS GLOBAL TRADE OÜ | 14609288 |
| ESSALO OÜ kustutatud | 11938181 |
| SOLOTEKS TRANS OÜ kustutatud (former name Esse Transport OÜ) | 12103596 |
| ACC INFRA OÜ kustutatud (former name Esse Transprt OÜ) | 12455547 |
| VÄRSKA SÜDAMEKODU OÜ (former name AdPrint Group OÜ) | 12644292 |
| EWSA OÜ | 12613191 |
| ÄSSA5 OÜ | 16997484 |
| ESDA OÜ | 11882919 |
| ESBA1 OÜ | 11073446 |
| YESSA OÜ | 14019428 |
| EMSA OÜ kustutatud | 14568483 |
| ERSA OÜ | 14106133 |
| EGSA OÜ | 11289280 |
| NESSA OÜ | 14081019 |
| TESSA OÜ | 16536369 |
| ESJA OÜ kustutatud | 16296698 |
| SESA OÜ | 14131591 |
| ESRA OÜ | 12694663 |
| ELSA OÜ | 14034391 |
| ESSARPENTACLES SOFTWARE OÜ | 16819529 |
| ESPA OVERSEAS OÜ kustutatud | 11641363 |
| PESSA CONSULTING OÜ kustutatud | 12734894 |
| GUILHERME ISSA OÜ kustutatud | 16290780 |
| ESTA VITA OÜ | 16750111 |
| NESSA LOOMAARSTITEENUSED OÜ | 14375850 |
| BSSA CONSULTING OÜ | 16724852 |
| EMSA ÕIGUSBÜROO OÜ | 14030246 |
| EPSA TRADE OÜ | 14332697 |
| ELSA INVESTMENTS OÜ | 12009756 |