Implenia AG engages in the provision of construction services. It operates through the following segments: Development, Switzerland, Infrastructure, and International. The Development segment involves activities such as, planning and construction of real estate projects. The Buildings segment offers planning, engineering, coordination, processing as general and total contractor, technical facility management, and execution of complex construction projects. The Switzerland segment provides services for modernising residential and commercial properties, general or total contracting, building construction, road building and civil works. The Infrastructure segment focuses on tunnel construction and foundation engineering transnationally. The International segment focuses on activities in the German, Austrian, Norwegian, and Swedish markets, as well as its foreign gravel plants. The company was founded on November 4, 2005 and is headquartered in Dietlikon, Switzerland.