| Firma nimi |
|---|
| Coop Eesti Keskühistu |
| Corpcosta OÜ |
| Corpowear OÜ |
| Corvino OÜ |
| Cozy Cabin Design OÜ |
| Cozy Heat OÜ |
| Craftico OÜ |
| Craftmasters Estonia OÜ |
| Crate88 OÜ |
| Crazy Caracal OÜ |
| Creative Flow OÜ |
| Creatures Creatives Labs OÜ |
| Cristella VT OÜ |
| Crystal Distillery OÜ |
| Cuce-Camp OÜ |