| Company name | Reg. code |
|---|---|
| YSSE OÜ (former name Nord Fenster OÜ) | 12812648 |
| MYSSE OÜ kustutatud | 11839935 |
| ESSE INVEST OÜ | 10706925 |
| ESSE HALDUS OÜ kustutatud (former name Acc Infra OÜ) | 10422080 |
| ESSE ILUTUBA OÜ | 16143500 |
| ESSE INDUSTRY OÜ kustutatud (former name WireTeam OÜ) | 12397155 |
| ÜSSE PUIT OÜ | 16439979 |
| ERRE2ESSE OÜ kustutatud | 12733512 |
| ESSE HOUSE OÜ | 16543335 |
| IN ESSE OÜ (former name Organic Sweets OÜ) | 14382689 |
| ÜSSE AKNAD JA UKSED OÜ | 17183588 |
| SOLOTEKS TRANS OÜ kustutatud (former name Esse Transport OÜ) | 12103596 |
| ACC INFRA OÜ kustutatud (former name Esse Transprt OÜ) | 12455547 |