Mammoet a is privately-hel Dutch company specialised in hoisting and transporting heavy objects. It raised the Russian submarine Kursk. The company is experienced in the offshore sectors, in placing large objects in the petrochemical industry, construction, as well as rapid bridge replacement using Self Propelled Modular Transporter vehicles. It is headquartered in Schiedam in an office building named De Bolder (= "The Bollard"). Mammoet also has offices in North America, South America, South Africa, the Middle East, and Eastern Asia. The Director of Mammoet is Roderik van Seumeren. Most of the shares are in hands of SHV, parts are in hands of the van Seumeren family.