American aquaculture researchers are making steady progress in transferring lumpfish, Cyclopterus lumpus, rearing technology from their Canadian and European counterparts to their own facilities to catalyze the use of cleanerfish for Atlantic salmon and steelhead trout ocean farms in the United States, specifically in Maine and New Hampshire. Since 2019, lumpfish have been reared from egg to adult at the University of New Hampshire’s Coastal Marine Laboratory. In Maine, at the University of Maine’s Center for Cooperative Aquaculture Research and at the United States Department of Agriculture’s National Cold Water Marine Aquaculture Center, lumpfish culture and research also occur. Further, the US Lumpfish Consortium, made up of additional research institutions and aquaculture businesses, is working collectively to address some of the barriers that limit cleanerfish use, in general, and to transfer all known technology to the US aquaculture sector. An overview of ongoing lumpfish research in the US, with an emphasis on NH-based studies, including a variety of projects focused on lumpfish hatchery needs, using lumpfish in salmonid farms, and wild lumpfish population dynamics, will be presented. The hatchery studies focus on juvenile nutrition and feeding; tank modifications and fish behavior; understanding causes of and reducing lumpfish cannibalism and aggressive behaviors; and controlling timing and duration of broodstock spawning through photothermal manipulation and hormonal implants. Farm studies focus on the effectiveness of using lumpfish to control sea lice on steelhead trout. Wild lumpfish studies focus on mapping lumpfish distribution throughout the US Gulf of Maine and determining how populations have changed over time, especially in relation to water temperature; providing scientific guidance to resource managers to ensure that lumpfish are harvested sustainably for use in emergent lumpfish aquaculture facilities; and understanding lumpfish occurrence patterns so that emergent US lumpfish hatcheries are able to utilize the most local populations to maintain the local genetic integrity of fish slated for release into net pen salmonid farms. These studies are funded by the National Oceanic and Atmospheric Administration’s Saltonstall-Kennedy Program, New Hampshire Agricultural Experimental Station, New Hampshire Sea Grant, Northeastern Regional Aquaculture Center, and the United States Department of Agriculture’s National Institute of Food and Agriculture.