Gearbulk Holding Ltd. is an international shipping company that operates the world's largest fleet of open hatch gantry and semi-open jib craned vessels.

[2] These vessels specialise in carrying unitised breakbulk cargoes like forest products, non-ferrous metals, and steel.

Founded by Kristian Gerhard Jebsen of Bergen, Norway in 1968,[2][3] it took over the Dublin Shipping company thirty years later.

[2] Standardising on this design makes the vessels interchangeable, and offers operational flexibility.

[2] On 2 January 2015, the MS Bulk Jupiter sank off the coast of Vũng Tàu, Vietnam.