Andersen Windows, Inc., is a part of Andersen Corporation; the largest window and door manufacturer in North America.  The flagship Andersen® brand is the most recognized and most used brand in the window and patio door industry. In addition to the Andersen brand, Andersen Corporation includes Renewal by Andersen window replacement. Andersen was founded in 1903 and is privately owned. Andersen employs 9,000 people and markets products throughout North America and in South America, Europe, Asia and the Middle East