NWL is the largest Film Capacitor manufacturer in North America and the world leader in water-cooled DC link applications. NWL is focused on film (Aluminum film with foil & segmented metallized film) capacitors exclusively because of their lower heat dissipation and longer life compared to other dielectric types. NWL was among the first companies to embrace this technology, the company focuses on innovative designs and state-of-the-art manufacturing processes. The company was founded in the 1930s by John Nothelfer as a transformer repair shop - Nothelfer Winding Laboratories, hence NWL. In 2013, NWL generated $72 Million in sales and employs over 375 staff members.