CA Customer Alliance Cadabra
  California Tourism California Travel Association
  Canadian Tourism Commission Canadian Transportation Agency
  Candlewood Cape Air
  Careerbuilder Caribbean Cruise Line
  Caribbean Hotel and Tourism Association (CHTA) Caribbean Tourism Organization
  Caribbean Wedding Association CaribbeanWay
  Carlson Carlson Rezidor Hotel Group
  Carlson Wagonlit Carnival Corporation
  Carol Verret Cathay Pacific
  CCRA Travel Solutions Celebrity Cruises
  Cendant Cendyn
  Center for Marketing Effectiveness CEO Strategist
  Certain Software Charlie Cook
  CHART Cheapflights Ltd
  CheapHotels.org CheapOair
  China Airlines Choice Aire
  Choice Hotels Circle Line Sightseeing Cruises
  City Accommodation CK Consulting
  CLIA ClickZ
  Club Med CNN
  CNW Conde Nast Traveller Luxury Travel Fair
  Condo Hotel Center Connected Traveler
  Constant Contact Consumer WebWatch
  Contiki Holidays Continental Airlines
  Convention Industry Council Copa Airlines
  Cornell Cornell Center For Hospitality Research
  Cornerstone Information Systems Corporate Planners Unlimited
  Costa Cruises Coyle Hospitality Group
  Crowne Plaza Cruise Industry Wire
  Cruise Shipping Miami Cruise West
  Crystal Cruises CSA Travel Protection
  Cultural Restoration Tourism Project Cunard
  Custom Aire Travel Cvent