L'International House World Organisation, www.ihworld.com ,  è un'organizzazione internazionale senza scopo di lucro con sede a Londra, fondata nel 1953 con il fine di promuovere l'insegnamento qualificato delle lingue attraverso la formazione di docenti altamente specializzati ed il costante monitoraggio e miglioramento degli standard di qualità delle scuole affiliate.

• IH Buenos Aires Belgrano, Argentina
• IH Buenos Aires Recoleta, Argentina
• IH Buenos Aires San Isidro, Argentina
• IH Brisbane, Australia
• IH Cairns, Australia
• IH Sydney, Australia
• IH Sydney Teacher Training, Australia
• IH Baku - Intellect, Azerbaijan
• IH Minsk, Belarus
• IH Toronto, Canada
• IH Vancouver, Canada
• Professional Language Teachers Santiago de Chile , CHILE
• IH Qingdao, China
• IH Nicosia, CYPRUS
• IH Brno, Czech Republic
• IH Prague - Akcent, Czech Republic
• IH Cairo Sahafayeen - ILI, Egypt
• IH Tallinn, Estonia
• IH Nice, France
• IH Tbilisi, Georgia
• IH Berlin - Prolog, Germany
• IH Freiburg, Germany
• IH Hamburg, Germany
• IH Budapest, Hungary
• IH Eger, Hungary
• IH Dublin, Ireland
• IH Campobasso, Italy
• IH Florence, Italy
• IH La Spezia, Italy
• IH Latina, Italy
• IH Lecco - Merate, Italy
• IH Livorno, Italy
• IH Milan, Italy
• IH Naples, Italy
• IH Palermo - London School, Italy
• IH Palermo Centro Storico, Italy
• IH Pisa, Italy
• IH Rome - DILIT, Italy
• IH Rome - Manzoni, Italy
• IH Rome - San Godenzo, Italy
• IH San Donato Milanese, Italy
• IH Seoul, Korea, Republic of
• IH Riga, Latvia
• IH Beirut, Lebanon
• IH Vilnius, Lithuania
• IH Cyberjaya, Malaysia
• IH Kuala Lumpur, Malaysia
• IH Malta - Gozo, Malta
• IH Mexico City, Mexico
• IH Riviera Maya, Mexico
• IH Veracruz, Mexico
• IH Ulaanbaatar - ESPF, Mongolia
• IH Auckland, New Zealand
• IH Bielsko Biala, Poland
• IH Bydgoszcz, Poland
• IH Katowice, Poland
• IH Kielce, Poland
• IH Koszalin, Poland
• IH Krakow, Poland
• IH Opole, Poland
• IH Torun, Poland
• IH Warsaw, Poland
• IH Wroclaw, Poland
• IH Aveiro, Portugal
• IH Braga, Portugal
• IH Coimbra, Portugal
• IH Figueira da Foz, Portugal
• IH Lisbon, Portugal
• IH Porto Foz, Portugal
• IH Torres Vedras, Portugal
• IH Viseu, Portugal
• IH Bucharest, Romania
• IH Moscow - BKC, Russian Federation
• IH Moscow - BKC Zelenograd, Russian Federation
• IH Moscow - BKC Zheleznodorozhny, Russian Federation
• IH Al Jouf, Saudi Arabia
• IH Dhahran, Saudi Arabia
• IH Jeddah, Saudi Arabia
• IH Bratislava, Slovakia
• IH Durban, South Africa
• IH Johannesburg, South Africa
• IH Barcelona, Spain
• IH Cordoba, Spain
• IH Huelva, Spain
• IH Ir?pain
• IH Madrid, Spain
• IH Madrid Alonso Martinez, Spain
• IH Madrid Ciudad Universitaria, Spain
• IH Madrid Col?Spain
• IH Madrid Nuevos Ministerios, Spain
• IH Malaga, Spain
• IH Mataro, Spain
• IH Palma, Spain
• IH Pamplona , Spain
• IH Sabadell, Spain
• IH San Sebastian - Lacunza EFL, Spain
• IH San Sebastian - Lacunza Spanish Courses, Spain
• IH Santander, Spain
• IH Sevilla - CLIC, Spain
• IH Tarragona, Spain
• IH Terrassa, Spain
• IH Valladolid, Spain
• IH Vejer La Janda, Spain
• IH Zaragoza, Spain
• IH Geneva , Switzerland
• IH Montreux - ESL, Switzerland
• IH Zurich - Hull's School, Switzerland
• IH Bangkok, Thailand
• IH Dnipro, Ukraine
• IH Kharkiv, Ukraine
• IH Kyiv, Ukraine
• IH Lviv, Ukraine
• IH Odessa, Ukraine
• IH Dubai, United Arab Emirates
• IH Bath, United Kingdom
• IH Intuition Languages, United Kingdom
• IH London, United Kingdom
• IH Newcastle, United Kingdom
• IH Torquay, United Kingdom
• IHWELS Summer Schools, United Kingdom
• IH Portland, United States
• IH San Diego, United States
• IH Santa Monica, United States
• IH Montevideo, Uruguay
• IH Hanoi - Apollo Education and Training, Viet Nam
• IH Ho Chi Minh City Apollo Education and Training, Viet Nam