| No. | Company | Activity |
| 1. | Tsokani Vasiliki SA | Quarries, Subcontracting, Trading |
| 2. | Ermioni Quarries SA | Limestone Quarry |
| 3. | Vafeiohori Quarries SA | Limestone Quarry |
| 4. | Ermioni Properties SA | Real Estate, Tourism Company |
| 5. | Tsokanis mining works shpk | Mining Services |
| 6. | Mining SA Doo | Mining Services |
| 7. | Latomia Basalt AS | Basalt Quarry |
| 8. | Erga Theofilos | Construction Company |
|
