| Name | Type | Country |
|---|---|---|
| Cloud’N’Sci Ltd | Enterprise | |
| CM | Enterprise | Spain |
| CodeSyntax | Enterprise | Spain |
| Cognima Limited | Enterprise | United Kingdom |
| Commissariat A L Energie Atomique Et Aux Energies Alternatives | Enterprise | France |
| Comune di Rovereto | Enterprise | Italy |
| Comversa comunicaciones | Enterprise | Spain |
| Consorcio sanitario del Garraf | Enterprise | Spain |
| Consultores de automatización y robótica S.A | Enterprise | Spain |
| Daedalus | Enterprise | Spain |