The Finnish Seamen's Mission works in close co-operation with the Evangelical Lutheran Church of Finland, although it is a separate organisation.
Within Finland, the Mission has branches at Hamina, Helsinki, Kemi, Kokkola, Kotka, Oulu, Pori, Raahe, Rauma and Turku.
[citation needed] Outside Finland, there are branches at Brussels, Gdańsk, Hamburg, London, Lübeck, Piraeus, Rotterdam and Warsaw.
As well as seafarers, the facilities are increasingly used by Finnish truck drivers, students and other expatriate workers.
Communion services are, however, normally held at the Chapel of the Resurrection in Rue Van Maerlant on the first and third Sundays of each month.
There is only one Merimieskirkko building in the UK (in London), but services are also occasionally held in other towns and cities.
A new site was later found in Rotherhithe, an area with a Scandinavian and Nordic connections where the Danish, Norwegian and Swedish seamen's missions also are present and where the four Nordic churches and the Church of Iceland community cooperate in their work.