[1] As of 2021, Marine Services operates nearly 100 vessels at six locations in the U.K. at: Portsmouth, Devonport, Falmouth, Clyde and two at Inner Raasay Sound.
Vessels of the Marine Service range in length from 11 m to 93 m and displace from 12 to 3,600 gross tonnes.
[2][3] The ships Kingdom of Fife and Cameron are provided by Briggs Marine who won a £100M subcontract from Serco Marine Services for the support and maintenance of the Royal Navy's navigational marks (or buoys) and moorings in the United Kingdom and overseas.
[1][4] In 2022, a £200m contract with Serco was signed extending the arrangement for a further 27 months commencing in December 2022.
Under the arrangement, the Ministry of Defence has the option to extend that contract for up to six more months.