NSI Electrical Contractors performs electrical installations and maintenance for a variety of restaurants, big-box retail stores, apartment buildings, hotels, and retirement facilities.  View our client list to see some of our more well-known business partners in the Greater Milwaukee area, Madison and across Southeastern Wisconsin.  We install outlets, lighting, and wiring systems that meet the specific needs of large and small businesses.  Our commercial wiring projects place an emphasis on safety and efficiency.  See more information about why we are one the premier commercial and residential electrical contractors in Milwaukee and Madison.