Taken in conjunction with private sector investment, the total investment will be almost €9 million in 2015.
The supported projects are expected to create 145 Jobs and €41 million in additional sales by 2017.
The grants are co-funded by the Department of Agriculture Food and the Marine and the European Fisheries Fund under the Seafood Development Programme.
Minister for Agriculture, Food and the Marine, Simon Coveney, said: “This investment of almost €9 million in 2015 will enable our innovative seafood processers to continue their strong growth trend over recent years that will see the sector continuing to grow sales internationally and grow employment in our coastal communities.
“It will put the required technology, infrastructure and standards in place to allow these businesses develop added value seafood products that are in great demand on the global market.”
The Minister concluded: “The Irish seafood processing industry generally, in line with Government policy under the Food Harvest 2020 plan, has strong plans to significantly grow its business further in the years ahead.
“I believe we can look forward with confidence to seeing the seafood processing sector continuing to be an integral part of Government’s policy to grow our indigenous seafood industry”.