Koninklijke Boskalis Westminster NV (Boskalis) is the Netherlands-based company engaged in the dredging and earthmoving, maritime infrastructure and maritime services sectors. It is divided in four segments. Dredging segment is engaged in port construction and maintenance, land reclamation, coastal defense, and riverbank protection, among others. Towage & Salvage provides assistance to incoming and outgoing vessels, management and maintenance of oil and gas terminals, wreck clearance, and environmental services. Offshore energy conducts offshore dredging and rock installation projects, heavy transport, lift and installation work, and support services for offshore industry. Inland Infra comprises construction of roads, railways, bridges, dams and terminals, including earthmoving, soil improvement and remediation. It operates through numerous subsidiaries, including STRABAG Wasserbau GmbH.