| Company name | Reg. code |
|---|---|
| MLK GROUP OÜ | 14098020 |
| MEK GROUP OÜ kustutatud | 12084611 |
| JLK GROUP OÜ | 14883807 |
| MKK GROUP OÜ (former name Aktsiaselts MKK Group) | 10250873 |
| MEK GROUP OÜ (former name Empyreus OÜ) | 12871763 |
| ALK GROUP OÜ | 11424476 |
| MLC GROUP OÜ | 11048211 |
| REFLEKT GROUP OÜ (former name MK Maritime Group OÜ) | 14172638 |
| TROLLO GROUP OÜ (former name LSD Group OÜ) | 12016696 |