puren gmbh

puren gmbh is a medium-sized, family-owned German manufacturer specializing in rigid polyurethane (PU) foam technology and high-performance insulation materials. Founded in 1968 in Überlingen on Lake Constance by Hans Bommer, the company has grown into an internationally active group with over 300 employees and multiple production sites across Germany.

Its core activities include the development, production, and sale of thermal insulation systems for pitched and flat roofs, facades, floors, and industrial applications such as window and door construction, vehicle and shipbuilding, and model making. A key product is purenit®, a wood-like functional material produced primarily from recycled PU residues and construction waste at its specialized Obermarchtal facility, supporting circular economy principles. The company also manufactures environmental products like oil and chemical binders.

puren operates throughout Europe with a subsidiary in the Czech Republic, a sales office in Hungary, and a joint venture in China. It forms part of a group that includes BOMAT Heiztechnik GmbH, focused on condensing boiler technology. The company emphasizes sustainability, resource conservation, and innovation, holding certifications such as ISCC PLUS for its purenit® production and maintaining a strong position as a pioneer in the European PU insulation and construction materials industry.