Hersteller
- C.G.Conn Vintage
- C.Itoh
- Caberg
- Cacharel
- CADAC
- Calcio Swiss
- Caliber
- Calvin Klein
- Camaro
- Cambridge Audio
- camel active
- CamelBak
- Camper
- Campingaz
- Campomaggi
- Canada Goose
- Candy Hoover
- Canon
- Canopus
- Canton
- Capcom
- Cape
- Capito
- Captiva
- Cardiostrong
- Cardo
- Carhartt
- Carinthia
- Carolina Herrera
- Carpower
- Carrera
- Carrera-Toys
- Carromco
- Carson
- Cartier
- Casa Bugatti
- Casco
- Case Logic
- Casio
- Caso
- Castel Garden
- CAT
- Cat Eye
- Caterpillar
- Cateye Fitness
- Cavalli
- CDV
- Cect
- Centurion
- Cerveny
- Chanel
- ChangHong
- Chantelle
- Chappi
- Chariot
- Cheap Monday
- Chemo
- Cherry
- Chic 2000 Bayer
- Chic 4 Baby
- Chicco
- Chie Mihara
- Chieftec
- Chiemsee
- Chinese Laundry
- Chloé
- Chopard
- Christian Dior
- Christopeit Sport
- Chung Shi
- CIBA Vision
- Ciclosport
- Cilio
- Circa
- Cisco Systems
- Citizen
- City Interactive
- Clae
- Clage
- Clarins
- Clarion
- Clarke-Tech
- Clarks
- Clatronic
- Clavia
- Clean Maxx
- Clearlab
- Clementoni
- Cleptomanicx
- Cloer
- Club 3D
- CME
- CMX
- CnMemory
- Cobra
- Cobra Bikes
- cocoono
- Codemasters
- Cogage
- Cokin
- Colcci
- Coleman
- Coloma y Pastor
- Colorful
- Columbia
- Comag
- Comfee
- Commencal
- Compaq
- CompeGPS
- Compex Medical GmbH
- Compucase
- Computer Associates
- Computerinsel
- ComScent
- Con-Sport
- Concept2
- Conceptronic
- Concord
- Conrad
- Constructa
- Conta Optic
- Continental
- Contopharma
- Contour Design
- Convar
- Converse
- Cooldevice
- Cooler Master
- Coolink
- Coolix
- Coolproducts
- Coolstream
- Cooltek
- CooperVision
- Coral
- Corel
- Cornelsen
- Cornilleau
- Corratec
- Corsair
- Cort
- Cosina Optical
- Cougar
- Cowon
- Cramer
- Cratoni
- Crave Entertainment
- Creative
- Creative Labs
- Cresyn
- Crimson Cow
- Crocs
- Croozer
- Cross Tools
- Crucial
- Crumpler
- Crunch
- Crystal Decisions
- Cube Bikes
- Cubitek
- Cuisinart
- Cullmann
- Cyber Snipa
- Cyberlink
- Cybex
- Cyrus