International School of Central Switzerland  The International School of Central Switzerland (ISOCS) is a private international school in Cham, Canton of Zug, Switzerland. It serves students aged 3 to 18 in Kindergarten through Grade 12 and is an IB World School. The Primary School was founded in 2008 and opened in August 2009. The Middle School was launched in August 2012 and the school became an IB World School in October 2013. The secondary school started in August 2014. At the end of November 2018, there was a possibility the school would close due to financial difficulties but identified an investor group in the following month that would allow it to continue; however, the name was not revealed. ISOCS' kindergarten, primary school ("Primarstufe 1.-6. Klasse", grade 1-6) and lower-secondary school ("Sekundarstufe I", grade 7-9) are approved by the bureau for elementary school ("Amt für gemeindliche Schulen") and administration for education ("Bildungsdirektion"), canton of Zug.