Andersen Corporation, Formosa Plastics Group, Jeld-Wen Inc., Masonite International Inc. and Pella Corporation are the five most highly rated window manufacturers according to a classification by Window & Door. The rankings are based on global sales.
Other companies, such as VKR and YKK are included among the top firms because they have residential window, skylight or door manufacturing in the United States. Door & Window's list is not all-inclusive, since it does not attempt to include manufacturers that do not have operations in North America. Some private companies might not be included because they refuse to disclose their information. Also, it is important to note that sales figures for some companies might include products other than windows and doors.