SOMPO P&C
Domestic P&C Insurance
Sompo Japan Insurance Inc.
Line of Business: P&C Insurance
Head Office: 26-1 Nishi-shinjuku 1-chome, Shinjuku-ku, Tokyo.
Proportion of Voting Rights Held by the Group*：100.0%
https://www.sompo-japan.co.jp/english
Sompo Japan DC Securities Inc.
Line of Business: Defined-contribution Pension Plans and Sale of Investment Trust.
Head Office: 25-1 Nishi-shinjuku 1-chome, Shinjuku-ku, Tokyo.
Proportion of Voting Rights Held by the Group*：100.0%
https://www.sjdc.co.jp/english/
Sompo Japan Partners Inc.
Line of Business: Insurance Agency Business
41F, Shinjuku Mitsui Building, 1-1 Nishi-Shinjuku 2-chome, Shinjuku-ku, Tokyo
Proportion of Voting Rights Held by the Group*：100.0%
https://www.sjpt.co.jp (Japanese only)
Sompo Risk Management Inc.
Line of Business: Risk Consulting and Cyber Security Business
Head Office: 8-1 Nishi-shinjuku 6-chome, Shinjuku-ku, Tokyo.
Proportion of Voting Rights Held by the Group*：100.0%
https://www.sompo-rc.co.jp/services_e
Mysurance Inc.
Line of Business：Small Amount & Short Term Insurance
Head Office：26-1 Nishi-shinjuku 1-chome, Shinjuku-ku, Tokyo
Proportion of Voting Rights Held by the Group*：100.0%
https://www.mysurance.co.jp/(Japanese only)
Prime Assistance Inc.
Line of Business: Assistance (helpdesk and arrangement service for solutions)
Head Office: 32-2 Honcho 1-chome, Nakano-ku, Tokyo.
Proportion of Voting Rights Held by the Group*：66.6%
https://prime-as.co.jp/en/
Sompo Warranty Inc.
Line of Business：Extended Warranty
Head Office：8F, Sumitomo Fudosan Ochanomizu Building, 2-2-3 Sotokanda, Chiyoda-ku, Tokyo
Proportion of Voting Rights Held by the Group*：100.0%
https://www.sompo-swt.com/(Japanese only)
*As of March 31, 2026
Overseas Insurance
*‘Sompo International' means Sompo International Holdings Ltd. and its subsidiaries and affiliates.
plus more than 50 companies
SOMPO Wellbeing
Domestic Life Insurance
Sompo Himawari Life Insurance Inc.
Line of Business: Life insurance
Head Office: Sompo Japan Kasumigaseki Building, 7-3, Kasumigaseki 3-chome, Chiyoda-ku, Tokyo.
Proportion of Voting Rights Held by the Group*：100.0%
http://www.himawari-life.co.jp (Japanese only)
*As of March 31, 2026
Nursing Care Business
Sompo Care Inc.
Line of Business: Nursing Care
Head Office:Shinagawa Seaside East Tower, 12-8, higashishinagawa 4-chome, shinagawa-ku,Tokyo.
Proportion of Voting Rights Held by the Group*：100.0%
Corporate information site（Japanese only）
Nursing care service information site（Japanese only）
Sompo Care Group Companies and Affiliates（Japanese only）
ND Software Co., Ltd.
Line of Business:
Planning, development, sales and operation support and maintenance
services for welfare operations support software
Head Office: 3369 Wada, Nanyo-shi, Yamagata Prefecture
Proportion of Voting Rights Held by the Group*：100.0%
https://www.ndsoft.jp/ (Japanese only)
*As of March 31, 2026
Other Wellbeing
Sompo Health Support Inc.
Line of Business：Healthcare Business
Head Office：2-3, Kanda Awaji-cho 1chome, Chiyoda-ku, Tokyo
Proportion of Voting Rights Held by the Group*：100.0%
https://www.sompo-hs.co.jp/(Japanese only)
Sompo Wellbeing Inc.
Line of Business：Consultation and support services for health, caregiving, retirement funds, and work-care balance
Head Office：7-3, Kasumigaseki 3-chome, Chiyoda-ku, Tokyo
Proportion of Voting Rights Held by the Group*：100.0%
https://www.sompo-wb.co.jp(Japanese only)
*As of March 31, 2026
Others
Sompo Direct Insurance Inc.
Line of Business: P&C
Insurance Head Office: 26-1 Nishi-shinjuku 1-chome, Shinjuku-ku, Tokyo.
Proportion of Voting Rights Held by the Group*：100.0%
https://www.sompo-direct.co.jp (Japanese only)
SOMPO Light Vortex Inc.
Line of Business: Digital
Head Office: 26-1 Nishi-Shinjuku 1-chome, Shinjuku-ku, Tokyo
Proportion of Voting Rights Held by the Group*：100.0%
https://lightvortex.com (Japanese only)
Sompo Asset Management Co.,Ltd.
Line of Business: Investment Advisory Service and Management Business of Investment
TrustHead Office: 2-16 Nihonbashi 2-chome, Chuo-ku, Tokyo.
Proportion of Voting Rights Held by the Group*：100.0%
https://www.sompo-am.com
Sompo Institute Plus Inc.
Line of Business: Research and Consulting
Head Office: 26-1 Nishi-Shinjuku 1-chome, Shinjuku-ku, Tokyo
Proportion of Voting Rights Held by the Group*：100.0%
https://www.sompo-ri.co.jp/eng/
*As of March 31, 2026
