Trelleborg AB is a global engineering group focused on polymer technology, with headquarters in Trelleborg, Sweden, with approximately 16,500 employees (2015), and with revenue of 25 billion SEK (2015). Its stock has been publicly listed on stock exchanges since 1964, and currently (2016) is listed on the Nasdaq Stockholm, large cap. It is active in over 40 countries and describes its mission as the development of "engineered polymer solutions that seal, damp and protect critical applications in demanding environments. In addition, Trelleborg owns 50 percent of Trelleborg Vibracoustic, a global leader within antivibration solutions for light and heavy vehicles, with annual sales of SEK 18 billion (2015) and about 10,000 employees (2015) in about 20 countries."