Glion Institute of Higher Education is a hospitality business school with two campuses in Switzerland and a London campus in the UK. lion Institute of Higher Education was ranked in 2013 among the top 3 hospitality schools worldwide for preparing students for an international career in hospitality management. The survey was conducted by Taylor Nelson Sofres (TNS) Travel & Tourism (U.K.), the world’s largest provider of custom research and analysis, and targeted hiring managers from luxury international hospitality companies in 80 countries around the world