- Cutting Edge Haunted House
- Casino.org
- Capital City Film Festival
- Caldwell Zoo
- Cameron Mitchell Restaurants
- Copeland's
- Champa Central Hotel
- Charitybuzz
- CheapFlights Canada
- Cruise Compete
- Compagnie Du Ponant
- Costa
- Cuir Ally
- Cashew
- Cocoslady
- Club Med
- Cyprus Airways
- Capacity Media
- Coastal Georgia Botanical Gardens
- Cheyenne Mountain Zoo
- Cablefax
- Cal Performances
- Cal Expo
- Cheyenne Frontier Days
- City of Carrollton,
- CanadaStays
- Capital Bikeshare
- Criss Angel
- Cool Beans
- Country Kitchen
- Crescent Theater
- Chicago’s Dog House
- Casa Cupula
- Chattanooga
- Chic Sparrow
- Crab & Cleek
- Cafuné
- Campomaggi
- Côte & Ciel
- Club Fyve
- Cooper Hewitt
- Cavalia
- Complete Ticket Solutions
- Canadian War Museum
- Cannon Mountain
- Cheekwood
- Colorado Springs
- Ceres Drive-In
- Cater2.me
- Club 1 Hotels
- Chicago's Pizza
- Carnival Corporation & PLC
- Cruise Planners
- CharterWorld Yacht Charters
- Cactus Language Travel Holidays
- Craft Brewers Conference
- Campanda
- Coachella
- Computer History Museum
- Clark Planetarium
- Creation Entertainment
- Colectivo
- Chica and Jo
- Campagnolo Gran Fondo New York
- Collins Vacation Rentals
- Carolina Cabin Rentals
- Chronic Tacos
- Chuck-A-Rama
- Cohn Restaurants
- Camelback Resort
- CaterCow
- Crave America
- Circle-Line
- Cruise Sale Finder
- CruiseAway
- ColsenKeane Leather
- Clever Designs LA
- Cycop
- Chuchka
- Clayton Island Tours