International House World Organisation | 35,609 followers on LinkedIn. A global provider of high quality language training and teacher training in 45 countries. | The International House World Organisation (IHWO) is one of the largest and oldest groups of language schools in the world. Founded in 1953, we are a global network of over 130 affiliated private language schools in 45 countries, spanning every continent. Our schools teach English, French, German, Spanish, Chinese, Italian, Arabic and a wide variety of other languages and are all independently owned and run.