Serious Materials develops and manufactures green building materials, including windows, doors and interiors. The company has received the Global Gypsum Product of the Year award and has also been recognized by the TIME/CNN, Fortune, Business Week, AlwaysOn and Red Herring magazines as one of the top green technology companies. The company offers windows and doors under the SeriousWindows, SeriousGlass, QuietRock and QuietHome Windows brand names. Serious Materials manufactures products in the states of California and Pennsylvania in the United States, as well as Canada. The company has a staff of more than 135 people and a manufacturing facility that is spread over an area of nearly 70,000 square feet. Its division includes Alpen.