Private company

Nipponkoa Insurance Co.

Logo: NIPPONKOA Insurance Co., Ltd., Public domain, via Wikimedia Commons4

Nipponkoa Insurance Co. is a limited company based in Tokyo, Japan, founded in 1944, dissolved in 2014.1 It is part of SOMPO.1

日本興亜損害保険株式会社（にっぽんこうあそんがいほけん、英: NIPPONKOA INSURANCE CO., LTD.）は、かつて存在した日本の損害保険会社である。通称、日本興亜損保。本社は東京都千代田区霞が関3丁目7番3号にあった。2 From the Japanese Wikipedia, CC BY-SA 4.0

Last updated Oct 20, 2026.

Overview

Oct 1, 1944Founded1

See how the biggest companies compare on our leaderboards

Corporate structure

Nipponkoa Insurance Co. is part of a group headed by SOMPO. 34 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
    • Nipponkoa Insurance Co. Chiyoda-Ku, Japan
    • Sompo Direct Insurance Inc. Subsidiary · Tokyo, Japan
    • Sompo Himawari Life Insurance Inc. Subsidiary
    • Sompo Japan Insurance Subsidiary · Shinjuku Ku, Japan
    • 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.

Subsidiaries and ownership

Parent company

From Wikidata.1

Timeline

  1. Sep 1, 2014Dissolved Dissolved1
  2. Oct 1, 1944Founded Founded1

Sources

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

  1. 1
  2. 2
  3. 3
  4. 4