$HYSR SunHydrogen, Inc. engages in the development and marketing of solar-powered nanoparticle systems that mimic photosynthesis to separate hydrogen from water. The company was formerly known as HyperSolar, Inc. and changed its name to SunHydrogen, Inc. in June 2020. SunHydrogen, Inc. was incorporated in 2009 and is based in Santa Barbara, California.