International Tunnelling and Underground Space Association

About the International Tunnelling and Underground Space Association: The International Tunnelling and Underground Space Association (ITA) is a non -profit and non-governmental international organization, which aims at promoting the use of underground space as a solution to sustainable development. Founded in 1974 and operating out of Geneva, Switzerland. ITA currently has 78 Member Nations, 300 affiliated members, 18 Prime Sponsors and 60 supporters.