Sigma2 AS has strategic responsibility for and manages the national e-infrastructure for large-scale data- and computational science in Norway. 

Sigma2 provides services for high-performance computing and data storage to individuals and groups involved in research and education at all Norwegian universities and colleges, and other publicly funded organizations and projects. We also coordinate Norway's participation in international collaborations on e-infrastructure.

Our activities are jointly financed by the Research Council of Norway (RCN) and the Sigma2 consortium partners, which are the universities in Oslo, Bergen, Trondheim and Tromsø. This collaboration goes by the name NRIS – Norwegian research infrastructure services. 

The business is run non-profit. Sigma2 has its head office in Trondheim. On 1 January 2022, the Ministry of Education and Research established a new agency, the Norwegian Agency for Shared Services in Education and Research (Sikt). The former organisations Uninett AS, Unit and NSD make up the new agency. Sigma2 was previously a subsidiary of Uninett AS and is now a subsidiary under Sikt.