{{Short description|Japanese insurance holding company}} {{Hatnote|"Mitsui Sumitomo" redirects here. For the keiretsus, see Mitsui and Sumitomo Group. Not to be confused with Sumitomo Life Insurance Company or Sumitomo Mitsui Banking Corporation.}} {{Expand Japanese|date=November 2023}} {{Infobox company | name = Mitsui Sumitomo Insurance Group Holdings, Inc. | native_name = 三井住友海上グループホールディングス株式会社 | logo = MSIG logo.svg | logo_size = 120px | type = Public (K.K) | fate = Merged | successor = MS&AD Insurance Group | foundation = October 21, 1918 (as Taishō Marine and Fire Insurance Co.) <br>October 2001 (merger of Mitsui Marine & Fire Insurance Co. and The Sumitomo Marine & Fire Insurance) | location = Tokyo, Japan | key_people = Yoshiaki Shin, Chairman<br />Toshiaki Egashira, President | area_served = Worldwide | num_employees = 20,237 (2008) | industry = Insurance | revenue = {{profit}} JP¥ 2,137,603 million (FY 2007) | net_income = {{profit}} JP¥ 40,027 million (FY 2007) | subsid = Ceylinco Insurance <small>(15%)</small><ref>{{Cite web|url = https://cdn.cse.lk/cmt/upload_report_file/367_1591607144562.pdf|title = Ceylinco Insurance Annual Report 2019 |website=www.cdn.cse.lk |publisher = Colombo Stock Exchange |access-date= March 2, 2020 }}</ref> | homepage = {{url|ms-ad-hd.com/en}} | traded_as = {{tyo|8725}} }} thumb|MSIG headquarters in Tokyo, Japan {{Nihongo|'''Mitsui Sumitomo Insurance Group Holdings, Inc.'''|三井住友海上グループホールディングス株式会社|Mitsui Sumitomo Kaijō Gurūpu Hōrudingusu Kabushiki-Kaisha}} is a Japanese insurance holding company headquartered in Tokyo, Japan.
MSIG was formed in 2001 from the merger of Mitsui Marine & Fire Insurance Co. (itself descended from the Taishō Marine and Fire Insurance Co. founded in 1918) and The Sumitomo Marine & Fire Insurance. In 2010, April Aioi Insurance Co., Ltd., Nissay Dowa General Insurance Co., Ltd., merged into MSIG, making the group's name changed in to MS&AD Insurance Group Holdings, Inc.. According to this business integration, MS&AD has become the largest property insurance company in Japan, with market share of 33% in 2013.<ref>MS&AD Insurance Inc. ''[http://www.ms-ad-hd.com/en/group/about/position.html]''. 2013.</ref>
On 8 September 2015, it was announced that Mitsui Sumitomo had agreed to buy the UK insurance firm Amlin for £3.5bn.<ref>{{cite web|url=https://www.ft.com/content/ee83e56e-559d-11e5-9846-de406ccb37f2|title=Mitsui Sumitomo to buy insurer Amlin for £3.5bn |publisher=FT|date=8 September 2015|accessdate=1 October 2015}}</ref>
==Group companies==
===Non-life insurance=== *Mitsui Sumitomo Insurance Co
===Life insurance=== *Mitsui Sumitomo Kirameki Life Insurance Co *Mitsui Sumitomo MetLife insurance Co
===Companies not based in Japan=== *Amlin *Cholamandalam MS General Insurance *MSIG Insurance Europe *MSIG Insurance Vietnam Company *MS Frontier Reinsurance *MS First Capital Insurance *Mitsui Sumitomo Reinsurance *Mitsui Sumitomo Insurance London Management *MSI Guaranteed Weather *Mitsui Sumitomo Insurance *MS Transverse Insurance
===Financial services=== *Sumitomo Mitsui Asset Management Co *Venture Capital Co
===Risk-related businesses=== *InterRisk Research Institute & Consulting *Mitsui Sumitomo Insurance Care Network Co *American Appraisal Japan Co
==Annual Reports== * ''[https://web.archive.org/web/20090226201447/http://www.msig.com/en/ir/library/annual/pdf/annual2008.pdf MSIG Annual Report 2008]'' * ''[https://web.archive.org/web/20160914140426/http://www.msig.com/en/ir/library/annual/pdf/2014_msad_01.pdf MSIG Annual Report 2014]''
==References== {{Reflist}}
==External links== * [https://web.archive.org/web/20080407202257/http://www.msig.com/en/ Mitsui Sumitomo Insurance Group] * [https://www.msi-oceania.com/ Mitsui Sumitomo Insurance – Oceania] {{Mitsui|state=autocollapse}} {{ICISA members}} {{Authority control}}
Category:Companies listed on the Tokyo Stock Exchange Category:Companies listed on the Osaka Exchange Category:Insurance companies based in Tokyo Category:Mitsui Category:Japanese brands Category:Sumitomo Group Category:Japanese companies established in 2001 Category:Financial services companies established in 2001 Category:Holding companies established in 2001 Category:Holding companies based in Tokyo Category:MS&AD Insurance Group