The Kindergarten (est. 2005) and the Primary School (est. 2000) were located in Kjellbergveien until 2011, and the Middle (est. 2000) and High Schools (est. 1991) in Framnesveien, housed in the old prestigious 21 High School students at Skagerak attended a
Habitat for Humanity trip to
Cluj in the
Transylvania region of Romania on June 23, 2012. The students raised money before traveling to Romania where they constructed houses for the poor. Besides Romania, Skagerak has arranged similar trips to
Moshi, Tanzania since 1997, where students have built classrooms, toilets, washing facilities, and more. Two developing projects in
Nepal received 300,000 NOK after a fundraiser by Skagerak in 2014.
Rotary International donated 2,50 NOK for every 1 NOK the school collected for the projects. 26 students traveled to Nepal in the fall of 2014 to check up on the projects. The school has done similar fundraising with projects in
Ladakh in the
Himalayan part of India. In the 2014 school year, international trips were offered to Spain, Germany, Nepal,
Paris, France, and
Geneva, Switzerland. High School and Middle School students traveled to
Rongai,
Kenya in the summer of 2016 as part of the Global Awareness Project. Skagerak International School will open an elementary school and a middle school in
Tønsberg, Norway in the fall of 2020. The schools will be located in the former facilities of Slottsfjellskolen, a building near
Tønsberg Fortress which was designed by
Henrik Thrap-Meyer in the 1880s. ==Accreditations and affiliations==