marine services predecessor royal maritime auxiliary service headquarters united kingdom parent serco group website www.sercomarine.com her majesty s naval service of the british armed forces components royal navy surface fleet fleet air arm submarine service royal naval reserve royal navy medical service nursing service qarnns chaplaincy royal navy police royal marines royal marines reserve special boat service history and future history of the royal navy royal marines customs and traditions future ships current fleet current deployments historic ships personnel the admiralty senior officers uniforms officer ratings rank insignia auxiliary services royal fleet auxiliary marine services v t e serco marine services is an auxiliary maritime service provided by serco group to her majesty s naval service incl . royal navy royal marines and the royal fleet auxiliary . marine services primarily operates from the nation s three main naval bases hmnb portsmouth hmnb devonport and hmnb clyde but also supports training and operations overseas as well as at various british overseas territories . marine services was previously provided by the royal maritime auxiliary service until its disbandment in 2008 . thereafter it was briefly provided by serco denholm a joint venture between serco group and denholm group 1 until denholm s share was bought out in late 2009 by its larger partner serco . 2 contents 1 history 2 role 3 ships 4 see also 5 references 6 external links history edit further information royal maritime auxiliary service ensign of the now disbanded royal maritime auxiliary service in 1976 the former admiralty yard craft service merged with the royal maritime auxiliary service to provide marine services for the united kingdoms naval service . however by 1996 marine services was put out to commercial tender by the ministry of defence warship support agency now part of the defence equipment and support organisation which resulted in all tugs lifting craft and various tenders being operated by serco denholm the joint venture between serco group and denholm group . 3 the commercial tender awarded to serco denholm also included the management of naval bases devonport portsmouth and clyde . 3 at the time of the international festival of the sea in 2005 serco denholm were operating over 120 vessels in support of the naval service including tugs passenger vessels pilot boats and a range of stores and tank cleaning lighters . 3 although serco denholm operated and provided all auxiliaries it did so under the then royal maritime auxiliary service . in 2006 the mod awarded the future provision of marine services contract a private finance initiative to the preferred bidders serco denholm . 4 in december 2007 serco began the flagship 1bn private finance initiative to provide marine services to the royal navy for the next 15 years . this contract includes the manning operation and maintenance of over one hundred vessels and the introduction of around thirty new ones . 5 as a direct result of this the royal maritime auxiliary service which had previously provided this role was formally disbanded on 31 march 2008 . 6 all vessels formally prefixed rmas assumed the sd prefix instead . in 2009 serco being the larger partner in the joint venture with denholm bought out denholm s share . since then all vessels have seen the sd funnel logos replaced with the serco logo on the vessels superstructure . however the sd prefix has been retained . the service is now known as serco marine services . 2 role edit serco marine services supports the naval service and the royal fleet auxiliary in both port and deep water operations . 7 in port and uk waters marine services is primarily tasked with berthing and towage activities located at the three main naval bases ; devonport portsmouth and clyde . other tasks such as coastal logistics including stores liquids and munitions and passenger ferrying is also readily undertaken . out of port operations in uk waters include direct involvement in supporting diving and minelaying training exercises as well as torpedo recovery . 2 overseas serco marine services undertake similar activities in locations such as gibraltar the falklands and the sovereign base areas of akrotiri and dhekelia in cyprus which includes the maintenance of navigational marks or buoys and supporting military operations and training . 2 ships edit main article list of ships of serco marine services the red ensign as of 2014 there are over 100 vessels operated by serco marine services . 8 since the disbandment of the royal maritime auxiliary service all vessels carry the ship prefix sd and continue to do so since denholm s share was bought out by serco in late 2009 . vessels currently in service can be recognised by their black hulls with white beading and white coloured upperworks . the former buff coloured upperworks which had once been associated with the rmas are steadily disappearing with the last few vessels due to adopt the new colour scheme in coming years . 2 marine services enables royal navy and royal fleet auxiliary ships including the united kingdoms strategic nuclear deterrent to either move in or out of port for operational deployment and training exercises around the world . the service operates a large assortment of auxiliaries including tugs and pilot boats as well as transporting stores liquid and munitions and providing passenger transfer services to and from ships for officers and crew . all ships of serco marine services fly the red ensign . 2 the largest ship currently in service is sd northern river . 2 see also edit her majesty s naval service royal navy royal marines royal fleet auxiliary references edit damen and serco put the royal navy to sea . damen.nl . retrieved 25 may 2010 . a b c d e f g bush steve 2014 . british warships and auxiliaries . maritime books . p. 64 . isbn 1904459552 . a b c international festival of the sea official souvenir programme hm naval base portsmouth june 30th july 3rd 2005 . international festival of the sea . 2005 . 1 billion mod marine services contract . serco.com . 6 february 2006 . retrieved 2011 12 06 . serco marine services queen s thanks as last post sounds for royal maritime auxiliary service serco marine servicesn defence sercomarine.com retrieved 20 june 2014 serco marine services vessel management sercomarine.com retrieved 20 june 2014 external links edit wikimedia commons has media related to serco marine services . serco marine services official website sercomarine.com v t e her majesty s naval service components royal navy surface fleet fleet air arm submarine service royal navy medical service nursing service qarnns royal marines 3 commando brigade special boat service naval reserve forces royal naval reserve royal marines reserve royal fleet auxiliary history and future history of the royal navy history of the royal marines customs and traditions future of the royal navy ships current fleet current deployments historic ships ships of the royal fleet auxiliary administration the admiralty admiralty board navy board navy command headquarters personnel chief of the naval staff and first sea lord senior officers uniforms officer rank insignia ratings rank insignia former components royal maritime auxiliary service royal naval auxiliary service royal naval air service royal naval supply and transport service women s royal naval service royal naval volunteer reserve royal corps of naval constructors category retrieved from https en.wikipedia.org w index.php title serco marine services & oldid 697959660 categories companies of the united kingdomhidden categories use british english from january 2016use dmy dates from february 2014commons category with local link same as on wikidata navigation menu personal tools not logged intalkcontributionscreate accountlog in namespaces article talk variants views read edit view history more search navigation main pagecontentsfeatured contentcurrent eventsrandom articledonate to wikipediawikipedia store interaction helpabout wikipediacommunity portalrecent changescontact page tools what links hererelated changesupload filespecial pagespermanent linkpage informationwikidata itemcite this page print export create a bookdownload as pdfprintable version in other projects wikimedia commons languages add links this page was last modified on 3 january 2016 at 02 18 . text is available under the creative commons attribution sharealike license ; 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