Marine socio-economic data are not readily available in Ireland. However, they are essential in determining the value of Ireland’s ocean economy, so as to realise its full potential. SEMRU began the extensive task of data collection and analysis of Ireland’s ocean economy in 2009. This resulted in the publication of a series of bi-annual ocean economy reports, to which, this report is the latest addition. The report provides a quantification and realistic monitoring of Ireland’s ocean economy over time and presents a complete and comparable sectoral profile across the ocean economy, which allows us to observe progress on the targets set out in the Government’s Integrated Marine Plan for Ireland - Harnessing Our Ocean Wealth (2012). The reference year for this report is 2012. The report also includes a set of economic projections that forecast Ireland’s ocean economy up to 2014.