International Social Service (ISS) | 7,788 followers on LinkedIn. General Secretariat - Geneva | The International Social Service was founded in Geneva, Switzerland, almost 100 years ago in 1924 by a group of people wanting to find durable solutions for individuals and families migrating to the Americas after World War 1. We are now a network of ISS members present in more than 120 countries with a General Secretariat in Geneva providing coordination, training and capacity building. For the last 97 years, ISS has carried out cross border social casework protecting families and children separated by borders.