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 - Council of Hotel and Restaurant Trainers
  Cheapflights Ltd
  CheapOair China Airlines
  Choice Aire Choice Hotels
  Circle Line Sightseeing Cruises City Accommodation
  CK Consulting CLIA
  ClickZ Club Med
  Conde Nast Traveller Luxury Travel Fair Condo Hotel Center
  Condor Airlines 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