Worldwide
Fund for Nature WWF
WWF has been the project's main sponsor since it commenced in 1997.
The seabird research on Stora Karlsö is an important part of
WWF's International Baltic Sea program.
Karlsö Jagt-och Djurskyddsförening (Karlsö Hunting & Animal Protection
Association) Karlsö Jagt-och Djurskyddsförening
owns and runs Stora Karlsö and also manages the island's tourism
activities. All the practical parts of the project's field work
are performed in close association with Karlsö Jagt-och Djurskyddsförening.