| Ettevõtte nimi | Reg. kood |
|---|---|
| MERCUR HOLDING OÜ kustutatud | 11384104 |
| MERCURY HOLDINGS OÜ (endine nimi Mercury Holdings UÜ) | 12887149 |
| MERCURI INTERNATIONAL ESTONIA HOLDING OÜ kustutatud | 12411398 |
| MERCURIO HOLDING OÜ | 14550626 |
| MERGER HOLDING OÜ | 14952603 |
| MERCURIES HOLDING OÜ | 14674564 |
| MJ MERCURIUS HOLDING OÜ | 16369730 |
| MARCUS HOLDING OÜ | 10265805 |
| MERCURIUS HOLDING EUROPE OÜ | 16488529 |
| KALMAR HOLDING OÜ (endine nimi OÜ Milius Holding) | 14232027 |