The International Window Film Association, referred to as IWFA (international window film association), is an authoritative organization in the window film industry composed of well-known window film manufacturers around the world. The global industry standards set by it represent the highest quality and technical standards. In other words, no matter what brand you have, as long as you manufacture window film, the technical standards must be implemented? The standards set by the IWFA!

From the 1990s to the present, there are only 7 automotive window film manufacturers as members of IWFA. They are: Johnson & Johnson of the United States, 3M of the United States, Lonzo Film of the United States, Saint-Louis of Israel, and Marriott of the United States. Dico, American Quantum, and Chinese Kangdexin.