Headquartered in Moosseedorf, Switzerland, the Marti Holding AG is a private limited company that has been in operation since 1922. The Marti Group is an internationally active Swiss construction group with around 80 subsidiaries, which are grouped under the umbrella of the Holding AG. The independently managed subsidiaries are operative in Switzerland, Germany, Austria, Iceland, Norway, Spain, Slovakia, Ukraine, Russia, India and China. The Group operates as a general contractor in all major areas of construction. These include building construction, civil engineering, tunneling, special civil engineering work, road construction, conveying technology as well as renewal and reconstruction. The current major projects of the Marti Group include the pump storage stations Limmern and Nant de Drance, the Prime Tower in Zurich and the Cross-city link at Zurich main station.