The green sea urchin (GSU), Strongylocentrotus droebachiensis, is an economically important species in the Northeastern US, with production primarily based in Maine . The fishery has dramatically declined since the 1990s, but the demand for GSUs has increased. GSUs can be grown in open water in a wide range of gear types either alone, in polyculture with shellfish or algae or as part of integrated multi trophic aquaculture systems. They are a high value luxury seafood product and global and national demand is unmet creating an opportunity for aquaculture . This talk will overview project efforts working towards expanding the emerging aquaculture industry. These include optimizing hatchery production methods, outreach to increase the awareness of seed availability, and facilitating uptake by providing new growers with seed and technical support for experimental growth to market. Sea urchins also offer a low trophic solution towards reducing nuisance shellfish biofouling species through polyculture. Biofouling can prevent shellfish from reaching their full growth potential by >30% and sea urchins can reduce this fouling through grazing. This talk will overview projects partnering shellfish growers, hatchery producers and researchers on the use of GSUs for reducing biofouling on various shellfish species. This work is funded by the US Department of Agriculture’s Northeast Sustainable Agriculture Research and Education, National Institute of Food Agriculture, and the Northeastern Regional Aquaculture Center.