Covalys’ proprietary technology is based on unique protein tags (SNAP-, CLIP-, ACP/MCP-tags) which would greatly facilitate the purification, labeling and immobilization of proteins in their functional form, opening thus new opportunities for protein based research. Covalys’ tag technology combines specificity with high reliability, stability and a broad versatility in its applications. Covalys’ tag technolgy has been out-licensed in 2009 to New England Biolabs (NEB), a recognized world leader in the field.