The Company – Waterproofing standards. SOPREMA is an international manufacturer specializing in the development and production of waterproofing products for the building and civil engineering sectors. Founded in 1908, SOPREMA has its headquarters in Strasbourg, France and operates in 90 countries. SOPREMA North America employs around 660 people in six manufacturing facilities and 20 technical sales support offices located throughout Canada, the United States and all over the world, and in the Research and Development Centre in Drummondville. Since starting operations in Canada in 1978, SOPREMA has manufactured and installed millions of square metres of waterproofing membranes. Each year, hundreds of building professionals choose SOPREMA for the quality of its products and the expertise of its technical support team.