Transphorm

Transphorm Inc. is a semiconductor company focussed on producing transistors made from gallium nitride (GaN) for use in switched-mode power supplies. It has raised about $220 million in venture capital since 2007 from investors including Fujitsu, KKR, Kleiner Perkins Caufield and Byers, and Google Ventures. It is headquartered in Goleta, California, close to the University of California at Santa Barbara (UCSB) from which the company is an offshoot and where the co-founder and CTO, Umesh Mishra, is a professor.