The company dates back to the carpentry workshop founded in 1900 by the two master carpenters Eduard Janssen and Peter Kampen. Today, reinforced concrete construction, building construction and civil engineering are the primary focus of their portfolio. Residential buildings, administration buildings or production halls are created in interdisciplinary cooperation with building owners, architects and external specialist planners and delivered as shell construction, turnkey construction, new buildings, commercial buildings or industrial halls. Façade design or thermal insulation, renovations, building on stock and building in the dyke line are also among the company's services.