Its main office is at Kjeller, Norway, and slightly under half of the institute’s activities are based in Halden.
The origins of Norsk Data go back to the development of digital computers at the Norwegian Defense Research Establishment at Kjeller, Norway, where several early computers had been designed, such as the SAM and the SAM 2, also known as the FLINK.
Two research reactors are currently operative, the Halden Reactor and JEEP II at Kjeller.
In 2001 the board moved to new, tailored facilities in Lillestrøm close to Kjeller Airport, this following two years in temporary offices at Kjeller since Fornebu Airport had closed in 1998.
UNIK, The University Graduate Center, a research foundation at Kjeller in Norway