Private company

Sompo Japan Insurance

Logo: 損保ジャパン, Public domain, via Wikimedia Commons4

Japanese insurance company

Sompo Japan, Inc. (損害保険ジャパン株式会社, Songai Hoken Japan Kabushiki-gaisha; lit. "General Insurance Japan"), formerly known as Sompo Japan Nipponkoa Insurance, Inc. (損害保険ジャパン日本興亜株式会社, Songai Hoken Japan Nihonkoa), is a Japanese insurance company. It is the second-largest property insurance company in Japan only behind Tokio Marine, with market share of 19.3% in 2007.2 Wikipedia text CC BY-SA 4.0

Last updated Oct 20, 2026.

Overview

Oct 1888Founded1

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Shinjuku-Sompo-Japan- Insurance-Building-02
Photo: Rs1421, CC BY-SA 3.0, via Wikimedia Commons6

Sompo Japan, Inc. (損害保険ジャパン株式会社, Songai Hoken Japan Kabushiki-gaisha; lit. "General Insurance Japan"), formerly known as Sompo Japan Nipponkoa Insurance, Inc. (損害保険ジャパン日本興亜株式会社, Songai Hoken Japan Nihonkoa), is a Japanese insurance company. It is the second-largest property insurance company in Japan only behind Tokio Marine, with market share of 19.3% in 2007. As of 2010, the company is a wholly owned subsidiary of SOMPO Holdings.2

Corporate structure

Sompo Japan Insurance is part of a group headed by SOMPO. 35 entities, 7 countries on record. Switch between the flow chart and the network, and select any entity to see its details.

  • SOMPO 東京都 新宿区, Japan
    • Sompo Japan Insurance Shinjuku Ku, Japan
    • Nipponkoa Insurance Co. Subsidiary · Chiyoda-Ku, Japan
    • Sompo Direct Insurance Inc. Subsidiary · Tokyo, Japan
    • Sompo Himawari Life Insurance Inc. Subsidiary
    • Sompo Japan Nipponkoa Subsidiary · Sompo Japan Building
    • ENDURANCE U.S. HOLDINGS CORP. Subsidiary · Dover, Delaware, United States
      • ENDURANCE ASSURANCE CORPORATION Subsidiary · Harrison, New York, United States
        • ENDURANCE AMERICAN INSURANCE COMPANY Subsidiary · Harrison, New York, United States
        • ENDURANCE AMERICAN SPECIALTY INSURANCE COMPANY Subsidiary · Purchase, New York, United States
        • ENDURANCE RISK SOLUTIONS ASSURANCE CO. Subsidiary · Purchase, New York, United States
        • Sompo America Insurance Company Subsidiary · Purchase, New York, United States
      • ENDURANCE SERVICES LIMITED Subsidiary · New York, New York, United States
    • RIVERSTONE CORPORATE CAPITAL 5 LIMITED Subsidiary · Brighton, United Kingdom
      • SYNDICATE 5151 Subsidiary · London, United Kingdom
    • Sompo International Holdings Ltd. Subsidiary · Hamilton, Bermuda
      • ENDURANCE SPECIALTY INSURANCE LTD. Subsidiary · Pembroke, Bermuda
        • SOMPO INTERNATIONAL HOLDINGS (EUROPE) LIMITED Subsidiary · London, United Kingdom
          • 2 more
        • SOMPO WORLDWIDE HOLDINGS LIMITED Subsidiary · London, United Kingdom
          • 1 more
        • Endurance Specialty Insurance Ltd., Pembroke (Bermuda), Zurich Branch Branch · Pembroke, Bermuda
    • Sompo Life Re Ltd. Subsidiary · Pembroke, Bermuda
    • エヌ・デーソフトウェア株式会社 Subsidiary · 山形県 南陽市, Japan
    • 損害保険ジャパン株式会社 Subsidiary · 東京都 新宿区, Japan
    • ＳＯＭＰＯひまわり生命保険株式会社 Subsidiary · 東京都 新宿区, Japan
    • ＳＯＭＰＯアセットマネジメント株式会社 Subsidiary · 東京都 中央区, Japan
      • NUVEEN US EQUITY LONG & SHORT FUND Fund · George Town, Cayman Islands

Built from parent and subsidiary links from GLEIF, the Global Legal Entity Identifier Foundation (CC0); subsidiaries, stakes and holdings from Wikidata (CC0). Each entity in the chart links to its source.

What it owns

What Sompo Japan Insurance reports owning in its annual reports to the SEC: buildings, land and equipment, real estate and locations, investments, intangible assets and inventory, at the end of its latest fiscal year and a year before.

Stakes and holdings (Wikidata)

Things Wikidata records the company as owning, with the share when stated.1

The story

Tokyo Fire Insurance Company, Ltd. was established in 1887 as Japan's first fire insurance company. The company worked to cultivate an awareness of fire insurance, and five branch offices were added within a year. The major Yokosuka fire of 1890, however, nearly toppled the fledgling company.

In 1893, Japanese entrepreneur Zenjiro Yasuda absorbed the Tokyo Fire Insurance Company into the Yasuda zaibatsu. Later, in 1944, Tokyo Fire Insurance, Imperial Marine Insurance, and First Engine & Boiler Insurance merged to become the Yasuda Fire & Marine Insurance Company (安田火災海上保険).

Yasuda Fire made a successful bid for Van Gogh's "Sunflower" paintings for about 5.3 billion yen in 1987.

On July 1, 2002, Yasuda Fire and Nissan Fire & Marine Insurance (日産火災海上保険) merged into a new company, Sompo Japan Insurance Inc.

In December 2002, Sompo Japan acquired Taisei Fire & Marine Insurance.

In September 2014, Sompo Japan acquired Nipponkoa Insurance.

In December 2022, the heirs to the Jewish banker and art collector Paul von Mendelsohn-Bartholdly filed suit in Chicago to reclaim the Van Gogh, alleging that the insurance company ignored the Holocaust-linked history of the painting during its acquisition in 1987.

In 2023, Sompo Japan was implicated in an insurance fraud scandal along with Big Motor, then the largest used car dealer in Japan. According to the Financial Services Agency, despite being alerted to systematic insurance fraud at Big Motor in 2022, Sompo Japan decided to continue business with the dealer, despite two other major insurers suspending business and conducting an investigation. When this investigation confirmed systematic and pervasive insurance fraud at Big Motor, suspicion fell on Sompo Japan due to their close business relationship with Big Motor. On September 19 2023, Sompo Japan's offices in Shinjuku, Tokyo were raided by the Financial Services Agency, and it was revealed that Sompo Japan's management was aware of the fraud but decided to ignore it in exchange for Big Motor prioritizing selling Sompo Japan insurance. After the Financial Services Agency ordered Sompo Japan to improve managerial practices in the wake of the scandal, President Giichi Shirakawa resigned on 26 January 2024, and CEO Kengo Sakurada stepped down in March 2024.

From Wikipedia’s article on Sompo Japan, shared under CC BY-SA 4.0.5

Products and brands

Sompo Japan Nipponkoa has offices and subsidiaries in 28 countries, providing insurance services and risk management.

Asia Pacific

In 1991, PGA Yasuda Insurance Company, Inc., was established in Partnership with Prudential Guarantee and Assurance Inc. In September 2014, upon acquisition of Nippon Koa, it is now named PGA Sompo Insurance Corporation.

In June 2005, Sompo Japan established Sompo Japan Insurance (China) Co., Ltd. in Dalian, China.

Sompo Japan's Australian branch has more than 35 years of operating history.

Read the full text

In 2007, Sompo Japan developed its business in Malaysia by purchasing a 30% stake of Berjaya General Insurance Bhd, now Berjaya Sompo Insurance.

In 2008, Sompo Japan established a joint venture with Karnataka Bank, Indian Overseas Bank and Allahabad Bank (Which later merged with Indian Bank and Dabur Investment Corp. in India, Universal Sompo General Insurance (main office in Mumbai).

In 2022, Sompo Indonesia partnered with Roojai Insurance to provide online car insurance services.

Europe

Sompo Japan has been serving clients in Europe for about 50 years with offices in the United Kingdom, Belgium, France, Germany, Italy, the Netherlands, Spain and Turkey. Sompo Japan Insurance Company of Europe, a corporate member of Lloyd's of London since 1993, conducts underwriting and provides claim settlement, risk management and insurance information mainly to Japanese companies.

In April 2014, Sompo concluded the purchase of specialist Lloyd's of London market company Canopius Group for £594m.

Americas

Through its subsidiary Sompo Japan Insurance Company of America, headquartered in New York, Sompo Japan conducts property and casualty insurance operations in the United States and Canada. Sompo Japan Insurance De Mexico S.A. de C.V. started local operation in Mexico in 1998.

In South America, Sompo Japan's main base of operations is its subsidiary in Brazil, Yasuda Seguros S.A., established in 1958. The majority of Yasuda Seguros clients are local businesses and individuals.

In October 2016, Sompo Japan Nipponkoa has completed its acquisition of Bermuda-based insurer Endurance and will integrate it into its newly launched, fully integrated re/insurance platform in Bermuda, named Sompo International.

The new organization will have a board of its own, led by John Charman as chairman and CEO. He will report to Sompo CEO Kengo Sakurada. Charman was chairman and CEO of Endurance prior to its acquisition.

In October 2016, Sompo announced the initiation of processes to buy 100% of Endurance for the sum of US$6.3 billion. Endurance was delisted from the New York Stock Exchange upon completion of the transaction.

From Wikipedia’s article on Sompo Japan, shared under CC BY-SA 4.0.5

Subsidiaries and ownership

Parent company

Subsidiaries

Also owns

From Wikidata.1

Acquisitions

  1. Succeeded Sompo Japan Nipponkoa1
  2. Succeeded The Taisei Fire and Marine Insurance Co., Ltd.1

Timeline

  1. Oct 1888Founded Founded1

Sources

The numbers on this page point here. Each one links to the record it came from.

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