founded 2000 headquarters fredericia denmark key people jens frederik hansen ceo services transport installation and servicing of offshore wind farms parent dong energy website www.a2sea.com a2sea is an offshore wind farm installation and services company based in fredericia denmark . the company specializes in transport installation and servicing of offshore wind farms . 1 in addition to denmark the company has subsidiaries in the united kingdom and germany . contents 1 history 2 fleet 3 references 4 external links history edit a2sea was established in 2000 . in 2001 m s ocean ady now sea energy and m s ocean hanne now sea power were converted into turbine installation vessels . the company s first installation work was the horns rev 1 wind farm in the north sea in 2002 . 2 in following years the company installed among others the frederikshavn nysted arklow bank scroby sands kentish flats and thanet and got contracts for the installation works on london array and ormonde offshore wind farms . 3 in 2009 the company was acquired by the danish energy company dong energy . in 2010 it was announced that siemens wind power will acquire a 49 % stake in the company at a price of dkk 860m . 1 2 the deal needed an approval of regulatory authorities 4 which came on 13 october 2010 . 5 in 2010 turnover was 586m dkk while profit was 86m . 6 fleet edit a2sea has fleet of two semijacked vessels sea energy and sea power and two jack ups sea jack and sea worker all of them specially converted for offshore wind turbines installation . in 2010 a2sea ordered a new semijacked vessel sea installer which is the first specially designed wind generator installation vessel of its fleet . 2 7 in early 2016 the barge sea worker was grounded off nymindegab denmark after its tow cable broke during bad weather . 8 approximately 1 week later the vessel capsized . 9 10 references edit a b siemens to become shareholder in a2sea . the engineer . centaur media plc. 29 june 2010 . retrieved 14 july 2010 . a b c stromsta karl erik 12 july 2010 . a2sea signs 139m contract for offshore wind installation vessel . recharge . nhst media group . retrieved 14 july 2010 . a2sea presentation pdf . a2sea . export promotion denmark . 12 april 2005 . retrieved 14 july 2010 . siemens catches wind with a2sea move . upstream online . nhst media group . 29 june 2010 . subscription required . retrieved 14 july 2010 . antitrust authority approves siemens as equity partner in a2sea dong energy 13 october 2010 . retrieved 16 november 2010 . pedersen lars dalsg rd. a2sea profits energy supply 21 march 2011 . accessed 9 october 2011 . dong orders 139m vessel from cosco . upstream online . nhst media group . 12 july 2010 . subscription required . retrieved 14 july 2010 . 15 crew safe after a2sea rescue renews.biz 27 january 2016 sea worker capsizes off denmark renews.biz 3 february 2016 sea worker er v ltet i nattens bl st www.tsyvd.dk in danish 3 february 2016 external links edit wikimedia commons has media related to a2sea . official website v t e siemens divisions and subsidiaries current energy sector siemens wind power industry sector siemens milltronics process instruments siemens mobility siemens plm software siemens financial services siemens healthineers siemens canada siemens mexico siemens pakistan former and defunct acuson corporation1 c. a. parsons and company1 dispolok2 helios ag2 infineon technologies2 osram 2 roke manor research2 siemens communications1 siemens dematic2 siemens home and office communication devices2 siemens hearing instruments2 siemens it solutions and services2 siemens mobile2 siemens vai1 siemens nixdorf informationssysteme2 siemens plessey2 siemens vdo2 wincor nixdorf2 rolm1 joint ventures and shareholdings current a2sea 49 % areva np 34 % atos 15 % german shanghai metro group primetals technologies 49 % siemens saudi arabia former and defunct biin bsh bosch and siemens home appliances gaggenau neff eurotrain fujitsu siemens computers krauss maffei nokia siemens networks 49.9 % siemens matsushita components unify gmbh & co. kg 49 % predecessors siemens & halske siemens schuckert siemens reiniger werke products services and projects current finex locomotives multiple units siemens modular metro siemens inspiro software products tram vehicles mobility projects defunct elektrische viktoria mobile phones simatic s5 plc simpad people wilfried feldenkirchen joe kaeser karlheinz kaske klaus kleinfeld peter l scher bernhard plettner heinrich von pierer jim reid anderson erich reinhardt ernst von siemens carl friedrich von siemens carl heinrich von siemens hermann von siemens peter von siemens werner von siemens georg wilhelm von siemens carl wilhelm siemens gerd tacke places gro siedlung siemensstadt siemens arena siemensstadt other phoebus cartel siemens competition siemens foundation siemens open siemens scandal japan 1914 siemens scandal greece 2008 werner von siemens ring 1now integrated into other siemens divisions or business groupings 2sold category commons retrieved from https en.wikipedia.org w index.php title a2sea & oldid 704700296 categories companies of denmarksiemenshidden categories pages containing links to subscription only contentcs1 danish language sources da use dmy dates from february 2016commons 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 deutsch edit links this page was last modified on 13 february 2016 at 01 33 . text is available 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