Nynäshamn's Turistbyrå (Nynaeshamn Municipality, Tourist office)

Remigium - Mannig Community for seafarers and maritime
employers

Sjöfartsverket (Swedish Maritime Administration)

Skärgårdsstiftelsen (Archipelago Foundation)

SMHI (Swedish Meteorological and Hydrological Institute)

Statens Fastighetsverk SFV (The National Property Board)

Svenska Fyrsällskapet (The Swedish Lighthouse Society)

Waxholmsbolaget AB
(Waxholmsbolaget is the orderer of the public sea traffic in Stockholm's archipelago and harbour)