Boskalis Westminster N.V. is a Dutch dredging and heavylift company that provides services relating to the construction and maintenance of maritime infrastructure internationally.

During 1933, Boskalis partnered with the Westminster Dredging Company (based in Fareham, England), which opened business opportunities with West Africa.

In Hong Kong, the company worked on the major land reclamation project for the new Chek Lap Kok airport,[8] while in Singapore it cooperated on a multi-year development program.

[11] During 2000, Boskalis and the Dutch maritime construction firm Hollandsche Beton Groep (HBG) explored multiple avenues aimed at bringing together or merging the two businesses, ranging from a hostile takeover to even agreeing terms from a friendly transaction.

[19] Despite the offer being promptly rejected by Smit's board, Boskalis subsequently built a stake of over 25% in the firm[20] and expressed a continuing desire to buy a number of its business units.

[26][27] In October 2014, Egypt signed a $1.5 billion contract with Boskalis, alongside five other multinational firms, to carry out dredging in connection with the expansion of the Suez Canal.

[30][31] Boskalis has played a key role in the delivery of numerous offshore wind power generation schemes, in particular the use of cable-laying ships to connect such farms to land-based energy grids.

On 15 September 2023, Boskalis’ Group Director, Pim van der Knaap, accepted the International Association of Dredging Companies Safety Award 2023 from IADC’s President Frank Verhoeven for the new and improved waterbox, used for sandfill areas.