Gilbèrt de Bock is the founding owner of De Bock Maritiem B.V., a ship-owning and ship-management company based in Alkmaar, The Netherlands, specialized in sea-river trade, shortsea trade and specialized vessels. Founded in 1999, the company started a as single-ship company with Gilbèrt de Bock as captain-owner.
Presently the company owns and/or manages a fleet of in total 15 vessels.
Gilbèrt de Bock is also a board member of the Royal Dutch Shipowners Association.