| Company name | Reg. code |
|---|---|
| CULVERTS OÜ | 12407882 |
| CULVERTS AGRI OÜ | 12749795 |
| MÄEOTSA MAHETALU OÜ (former name Culverts Foods OÜ) | 14022703 |
| CULVERTON MACHINERY OÜ | 16694708 |
| CALVERTO OÜ kustutatud | 12081957 |
| CALVERIS OÜ kustutatud (former name Calveris UÜ) | 12884783 |
| CALVERT INVEST OÜ kustutatud | 10729742 |