- ChanBrothers.com
- Center for Architecture
- Collette
- CurrencyKart
- Chicago Helicopter Experience
- Cream
- Cab Startup
- Cheap Seats Tickets
- Chamexpress
- Carey International
- CES
- Cocobay Resort
- Cinépolis Luxury Cinemas
- Cleveland Museum of Natural History
- CasinosAvenue
- Chicago Botanic Garden
- Columbus Pet Expo
- Central Square Florist
- Camper & Nicholsons
- CurbStand
- Cinema Cafe
- Children's Fairyland
- Chewse
- Carol Drives
- Cloverleaf Pizza
- Christines Molds
- Creative Sweet Treats
- CruiseMapper
- Corky's Gaming Bistro
- Cathmosphere Café
- Craft Wallet
- CORI TRAVELLER
- Climb Glacier National Park
- California Yellow Cab
- Chilantro BBQ
- Carngo
- Creative Discovery Museum
- Cranbrook Institute of Science
- Crystal Bridges Museum of American Art
- Carnegie Museum of Art
- Cummer Museum of Art & Gardens
- Convene
- Cyndi Lauper
- Clayton Hotels
- Casa Velas
- Clerk Hotel
- Cuero Bags
- Calego
- Chester Travels
- Capsul Case
- Cassiani
- Cesta Collective
- Crash Baggage
- Cheat Day Land
- Coffee 'n Clothes
- Canyon Creek
- Clubtix
- Cruises.com
- Chena Hot Springs Resort
- Company XIV
- Comedy Works
- Carnegie Science Center
- Carnegie Museum of Natural History
- Cradle of Aviation Museum
- Central Park Conservancy
- Comic-Con
- Culture Greetings
- Ceci New York
- Cloud Channel Summit
- Customer Success Summit 2015
- CycleHack
- Cork Midsummer Festival
- Creation Festival
- Caloundra Music Festival
- City Lights Music Festival
- Cruzin
- Corporate Tailgate
- Carolina Designs
- Carolina Mornings
- CycleHop