The results of the LQ analysis showed that the base sectors for North Sulawesi province were 7 basic sectors, namely the agricultural sector, the water supply sector, waste management, waste and recycling, the construction sector, the transportation and warehousing sector, the real estate sector, the government administration sector, defense and Mandatory Social Security, Health Services and Social Activities Sector and the rest are non-basic sectors. For Central Sulawesi Province, the basic sectors were agriculture, forestry and fisheries, Water Supply, Waste Management, Waste and Recycling, Government Administration Sector, Defense and Mandatory Social Security, Education Services Sector, Health Services Sector and Social Activities and the rest are non-basic sectors. Finally, for Gorontalo Province, the basic sectors were agricultural sector, forestry and fisheries, construction sector, transportation and warehousing sector, government administration Sector, defense and mandatory social security, education sector, health services sector and social activities and the rest are non-basic sectors. Based on the analysis using the Revealed Comparative Advantage (RCA) method, it revelaed that the superiority of the commodity for North Sulawesi Province was Tongkol, for Central Sulawesi Province was Seaweed aquaculture, and for Gorontalo Province was Tuna.