PeptiDream, Inc. engages in the biopharmaceutical business that includes research and development of non-standard peptide therapeutics. It operates through Drug Discovery and Development Business segment. The Drug Discovery and Development Business segment provides macrocyclic peptides based on its proprietary Peptide Discovery Platform System (PDPS) and engages in collaborative drug discovery research and development, technology licensing of PDPS, and expansion of pipeline through strategic alliances. The company was founded by Kiichi Kubota and Hiroaki Suga on July 3, 2006 and is headquartered in Kawasaki, Japan.