ITSC is the dynamic European General Sales Agency that stands for International Travel Support Centre.                                                                                                                                                                                                                     The #1 address when you're looking for a professional GSA organisation to whom you can outsource your     Sales & Marketing activities. The General Sales Agency ITSC is specialised in market development in Belgium, Luxembourg, Germany, Switzerland and the Netherlands for International companies who operate   in the Travel & Hospitality industry.                                                                                                                                                                                                                                                                                                                                                       We work as General Sales Agency for the best in class travel companies. Among different airlines we work for Marriott Hotels International, Hertz Coorperation and AirPlus.