| Company name | Reg. code |
|---|---|
| ELEUM OÜ (former name Trendlamp OÜ) | 14365001 |
| ELERUM OÜ | 14125538 |
| ELEUS OÜ | 12006083 |
| ELEM KOOLITUS OÜ (former name Elem Invest OÜ) | 12775692 |
| ANNELINNA JALARAVI OÜ kustutatud (former name OÜ Elem) | 14246526 |
| VIRIDIS OLEUM OÜ | 16421235 |
| ELUM KINNISVARA OÜ (former name Uus Maa Central Kinnisvarabüroo OÜ) | 14901936 |
| BIOENERGEETIKA OÜ (former name OLEUM OÜ) | 14023708 |
| VARAD HOLDING OÜ (former name Elum Holding OÜ) | 14558651 |