Magnetek - based in USA
Magnetek has been involved in renewable energies since the 1990's, with a full range of products including solar, wind, hydro, and fuel cells.
N50 W13605 Overview Drive
Menomonee Falls, WI 53051
Inverters - Magnetek produce commercial grid tied inverterw with outputs of upto 1Mw
Location of Magnetek website - http://www.magnetekrenewableenergy.com