In 2013, the Socio Economic Marine Research Unit (SEMRU) began the extensive task of data collection and analysis of Ireland’s ocean economy. Marine socio-economic data are not readily available in Ireland; however, it is essential in determining the value of the ocean economy in order to realise its full potential. This report is part of a series of economic reports and it provides an accurate and realistic monitoring of the ocean economy over time. It presents a complete and comparable sectoral profile, which allows us to observe progress on the targets set out in the Government’s Integrated Marine Plan (IMP) for Ireland - Harnessing Our Ocean Wealth (HOOW) (2012). The reference year of this report is 2010.