The author gives a survey of developement of fishery — fishing and processing industry — on Slovene coast in the years from the end of World War II to the unification offish factories Ampelea, Arrigoni, De Langlade and Delamaris export-import into the »Combine of tin industry Delamaris Izola« in 1959. The stress is laid on fish processing industry and fishing companies »Riba« Izola and »Ribič« Piran.