Marken in Köln
- C & A Mode (4)
- C. Gielisch (1)
- Cafe Extrablatt (4)
- Calida (1)
- Calumet Photographic (1)
- Calzedonia (5)
- cambio Mobilitätsservice (105)
- camel active (1)
- CAMP DAVID | SOCCX (3)
- Campus Suite Coffeeshop (1)
- Capgemini (1)
- Capita Customer Services GmbH (1)
- CARBO Kohlensäurewerke (1)
- CARGLASS (6)
- Caritas (21)
- Carl Duisberg Deutschkurse (2)
- Caverion (1)
- CBRE (1)
- CECIL (5)
- CENTERSHOP (2)
- CEVA Logistics (1)
- CHRIST Juweliere (4)
- Cinegate (1)
- Cineplex (1)
- Claire's (1)
- CLINIC IM CENTRUM (1)
- Clinique (12)
- CMS Hasche Sigle Rechtsanwälte (1)
- Coffee-Fellows (4)
- COMCAVE.COLLEGE (3)
- Comfortcharge (1)
- comma Store (2)
- COMMERZBANK (10)
- Computacenter (1)
- Continentale Versicherungsverbund (5)
- Contipark (23)
- Cosmo Hairshop (6)
- Cove&co (1)
- CRIFBÜRGEL (2)
- CT Lloyd - Wirtschaftsberatung, Steuerberatung (1)
- CUBE Store (2)
- CURACON (1)