Consists of the leaders of the six core ARCTOS institutions and the ARCTOS Leader Group. In addition, the dean and vice-dean of research at the faculty of Biosciences, Fisheries and Economics (BFE) at UiT The Arctic University of Norway (Kathrine Tveiterås, Jørgen Berge) as well as the leader of the department of Arctic and Marine Biology (AMB) at UiT (Geir Rudolfsen) have an observer status in the Board.
Responsible for approval of budgets and financial reports, and strategy and action plans, integration with member institutions plans and priorities, acceptance of new member institutions. The ARCTOS Board meets twice a year.

InstitutionRepresentativeDeputy representative
UiT The Arctic University of NorwayAnne HusebekkKenneth Ruud
UNIS The University Centre in SvalbardHarald Ellingsen
Institute for Marine ResearchSissel RogneMaria Fossheim
Akvaplan-nivaAnton A. GiæverAnita Evenset
Nord UniversityHanne Solheim HansenKetil Eiane
Norwegian Polar InstituteOle Arve MisundNalân Koç