Alle vestigingen in Groningen
- C&A (1)
- Care Group (1)
- Carpetright (1)
- Cendris (1)
- Centric (1)
- CFL (5)
- Charles Voegele (1)
- Chem-Dry (1)
- CM&P (1)
- Connexxion (1)
- Consolid (2)
- Continu (1)
- Coolcat (2)
- Coop (2)
- Cornelis Bedrijfsauto's B.V. (1)
- Cosmo (2)
- Credion (1)
- Croonwolter&dros (2)
- Crowe Horwath Foederer (1)
- CSU (1)
- Curves (2)