- C.O.Bigelow
- Christian audio
- Conair
- Custom Glam Girl
- Cases.com
- Cardiff Sports Nutrition UK
- CaseCrown
- Costume Kingdom
- Cuff-Daddy
- Cloth Diaper Outlet
- Christopher & Banks
- Closeout Linen
- Completeskincare.net
- ClothingWarehouse
- Calypso St. Barth
- Cardpool
- Corel
- Cool Cat Casino
- Canvas Press
- ColorTonersExpert.com
- Comodo SSL Store
- Coffee Cow
- Charlotte Russe
- Contacts America
- Clark Color
- Cesar's Way
- Christmas Lights Etc
- Cartoon Network Shop
- Claire Burke
- Cheesecake.com
- Country Store
- Cavender's
- Campmor
- Carols Daughter
- Cusp
- Carhartt
- ClassicHostess
- CPO JET
- CandyWarehouse
- Crayola
- Consumer Crafts
- CPO Milwaukee
- Chowd a headz
- Comfort Market
- Clearpoint Direct
- Coastal
- Cargo Gear
- Coveroo
- Clear
- CCS
- Cord Blood Registry
- Christian Book
- Caesars Total Rewards
- Costumes4Less.Com
- Cubify
- Cellular Country
- Charm & Chain
- Candlesoffmain.com
- Corso's Cookies
- Cricket Magazine Group
- Computer Associates
- Citibank U.S.
- Cushion Source
- Culinary Teas
- Costco
- Current Catalog
- Cutter & Buck
- C.R. Gibson
- Christmas Central
- City Beach
- CyberCucina
- CB2
- Colorescience
- Clinique Australia
- Cafe Press Canada
- Comlax
- Car Toys
- Chef's Resource
- Cambridge University Press
- CoolStuffInc.com