- Channel TEN / Big Brother 2008
- ChapStick
- Charal Snacks
- Charity SA
- Charlotte 49ers Football
- Charmin
- Charter
- Chateau Bonne Entente
- Che Men's Magazine
- Cheer Dark
- Cheestrings
- Cheez-it
- Chemistry.com
- Chester Zoo
- Chevrolet
- Chevrolet Aveo
- Chevy
- Chevy Volt
- ChicagoNow.com
- Chicken Licken
- Chicolate
- Child Health Foundation
- Child Labour
- Child Obesity
- Child Protection Line
- Child Surgery Vietnam
- Children of the World
- Children, Youth and Family Department, State of New Mexico
- Children’s speech therapist
- childrenofoffenders.com
- Chili Club Restaurant
- Chili's / St. Jude Children's Research Hospital
- China Environment Protection
- China Organization Against Domestic Violence
- China Times
- China Women Development Foundation
- Chinese Warning Signs
- Chipshot.com
- Choc Pix
- Chocolate Addict
- Chocolate Bar
- Chocolate Pillows
- Choose Cruelty Free
- Christina Aguilera Perfumes
- Christmas Card
- Chronic’art Magazine
- Chrysler Original Spare Parts
- Chupa Chups
- Cia de Bolso
- Cialis ED educational kit
- Cialis ED pills
- Ciba Vision
- CIC Banque Transatlantique
- Cierto Express
- Cigarettea
- CIMB Bank Home Loans
- Cine las Américas Latin American Film Festival
- Cinemanila International Film Festival
- Cinemaxx
- Cingular
- Cinnamon Toast Crunch
- Cisco
- Cities of Portoroz and Piran
- CitiTowing South Africa
- Citroen
- City Bike Depot
- City FM
- City of Hope
- City of Miami
- City of Perth / 60 Earth Hour
- City of Toronto Livegreen
- City TV
- Citymail
- citysearch
- CityVarsity
- ClÃnica Vitória Orto
- Clairol
- Clarín
- cleanuptheworld.org
- Clear
- Clear Shampoo
- Clearasil
- Clearblue Pregnancy test
- Clearex
- Clearex acne treatment gel
- Clemson University
- CLG/COI Fire Safety
- Clickmovies.com
- Clinic All Clear
- Clinica Marquez Cosmetic Surgery
- Clinique
- CLL language school
- Clorets
- Clorets Eliminator
- Clorox
- Clothes in Closets
- CLS
- Club Med
- Clue
- Cluedo
- Clusta Rack
- CNA stores
- CNN
- Coaching-Canin
- Coalition to Stop the Use of Child Soldiers
