| CFT | |
| CHOKER | |
| CIMEC | |
| CLEANWOOD | |
| CMP | |
| COLLO ANALYZER | |
| COMAPRES | |
| CONDAIR HUMIDIFICACIÓN S.A | |
| Condair Humidificación S.A. | |
| CONEXIONES Y MANGUERAS (CYMAN) | |
| CONSTRUCCIONES MECÁNICAS FORNS ,S.A | |
| CONTACESA | |
| CONTI FOOD & DRIND FLEX UPE | |
| CONTI FOOD & DRINK EPDM | |
| CONTI FOOD & DRINK FLEX NBR | |
| CONTINENTAL | |
| CONTROLPACK | |
| CONTROLPACK SYSTEMS, S.L. | |
| COPERMÁTICA, S.L. | |
| CORAVIN | |