Transphorm, a US-based energy efficiency technology company, has raised $15m according to a regulatory filing in February.
<!–
P { margin-bottom: 0.21cm; }A:link { }
–>
Transphorm has now raised approximately $133m. In October 2012, it closed its series E round at $35m, led by Japan-based electronics business Nihon Inter Electronics Company (NIEC) and Japan-based public-private partnership Innovation Network Corporation of Japan (INCA).
Existing investors in California-based Transphorm include Google Ventures, the corporate venturing unit of the US-based search engine, as well as venture firms Kleiner Perkins Caufield & Byers, Foundation Capital, Quantum Strategic Partners, Lux Capital, and Bright Capital.
Transphorm was founded in 2007 and is trying to reduce the more than 10% of all electricity lost due to power to electricity conversion inefficiencies. Transphorm previously closed their Google Ventures-led series C in 2011 at $20m. Quantum Strategic Partners led their $25m D round.