SOMPO Holdings (Sompo Holdings)

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This entry sits under non-life-insurers INDEX. Read it against MS&AD Insurance Group Holdings for peer / contrast context and banking index for the broader system / regulatory boundary.

TL;DR

One of Japan’s 3 major non-life insurers (Tokio Marine · MS&AD HD · SOMPO HD). Founded as NKSJ HD through the 2010-04 business integration of the former Sompo Japan Insurance + Nipponkoa Insurance, then renamed 2014-09 to Sompo HD → 2016-10 SOMPO HD. With a “theme-park strategy,” it positions non-life + life + nursing care (SOMPO Care = Japan’s largest nursing-care operator) + digital + overseas insurance (Sompo International, acquiring the former Endurance for approx. 6300 億円 in 2017 ) as its 5 pillars. Due to the 2023-2024 Big Motor fraudulent-repair problem, Sompo Japan received a business-improvement order from the FSA (2024). TSE PRIME 8630.

1. Company overview

Formal name: SOMPO Holdings, Inc. English name: Sompo Holdings, Inc. Securities code: TSE PRIME 8630 Established: 2010-04-01 (as NKSJ Holdings, Inc.) Renaming history: NKSJ HD (2010-04) → Sompo HD (2014-09) → SOMPO HD (2016-10) Head office: Nishi-Shinjuku, Shinjuku-ku, Tokyo (Sompo Japan head-office building) Representatives: Kengo Sakurada (Chairman ※after stepping down as CEO 2024-03 ) / Mikio Okumura (President, SOMPO HD) / Koji Ishikawa (President, Sompo Japan, assumed office 2024 ) Business type: insurance holding company (non-life + life + nursing care + overseas)

Main subsidiaries / equity stakes

SOMPO HD (holding company · listed 8630)
  ├── Sompo Japan Insurance Inc. (SOMPO non-life insurance, 100%) ── domestic non-life core
  │     └── derived from the 2014-09  merger of former Sompo Japan + former Nipponkoa Insurance
  ├── SOMPO Himawari Life Insurance (100%) ── domestic life
  ├── SOMPO Care Inc. (100%) ── Japan's largest nursing-care operator
  │     └── 2019  integration of former Watami nursing care + former Message
  ├── Sompo International Holdings Ltd. (100%) ── Bermuda-based · specialty insurance/reinsurance
  │     ├── former Endurance Specialty (acquired 2017  for approx. 6300 億円)
  │     └── oversees North America · South America · Asia · Europe businesses
  ├── DC Capital (UK Lloyd's syndicate management)
  ├── Sompo Insurance (US / Canada / Asia / Europe offices)
  ├── Sompo Sigorta (Turkey non-life)
  └── Sompo Brasil (Brazil non-life)

Merger history / predecessors

Former Yasuda Fire & Marine Insurance: former Yasuda zaibatsu lineage (prewar Kyosai Life lineage)
Former Nissan Fire & Marine Insurance: former Nissan konzern lineage
Former Taisei Fire & Marine Insurance: 2001 business failure → integrated into Sompo Japan (2002)
Sompo Japan: 2002-07 founded through the merger of Yasuda Fire + Nissan Fire + Taisei Fire
Former Nipponkoa Insurance: 2001-04 merger of Nichido Fire & Marine + Koa Fire & Marine (established 2001-04 )
NKSJ HD: 2010-04-01 business integration of Sompo Japan + Nipponkoa Insurance via the joint-holding-company method
Sompo Japan Nipponkoa: 2014-09-01 merger / renaming of Sompo Japan + Nipponkoa Insurance (holdco NKSJ HD → Sompo HD renamed simultaneously)
Sompo Japan (re-renaming): 2020-04-01 “Sompo Japan Nipponkoa” → re-renamed to “Sompo Japan” (“Nipponkoa” disappeared)

Key chronology (excerpt)

Year / month	Event
2002-07	Sompo Japan founded (merger of Yasuda Fire + Nissan Fire + Taisei Fire)
2010-04-01	NKSJ HD established (business integration of Sompo Japan + Nipponkoa Insurance · joint holding company)
2014-09-01	NKSJ HD → Sompo HD renamed / Sompo Japan + Nipponkoa Insurance merged → Sompo Japan Nipponkoa
2016-10-01	Sompo HD → SOMPO Holdings renamed
2017-03	Endurance Specialty Holdings acquisition completed (approx. 6300 億円) → reorganized into Sompo International
2019	SOMPO Care founded (Watami nursing care + Message integration) → Japan’s largest nursing-care operator scale
2020-04-01	Sompo Japan Nipponkoa → “Sompo Japan” re-renamed (“Nipponkoa” gone)
2023〜2024	Big Motor fraudulent-repair problem · Sompo Japan fraudulent-insurance-claim incident (fraudulent insurance claims in collusion with specific repair shops)
2024	FSA business-improvement order (to Sompo Japan) / management change · internal-control reform

1.5 Latest financials (FY2024 = 2025-03 term, consolidated)

Indicator	FY2024 results	YoY
Ordinary revenue	5,453,769 百万円 (≒ 5.45 兆)	+10.5%
Ordinary profit	552,900 百万円 (≒ 5,529 億)	—
Net profit (attributable to parent-company shareholders)	422,927 百万円 (≒ 4,229 億)	+1.7%
Total assets	15,030,015 百万円 (≒ 15.03 兆)	—
Net assets	2,870,000 百万円 (≒ 2.87 兆)	—
Consolidated employees	54,106 名	—
SOMPO Care number of facilities	approx. 470 facilities	—
Internal-control report	”effective” evaluation	—

Major shareholder composition

Top 10 shareholders: trust accounts (Japan Master Trust / Japan Custody) approx. 23%
Foreign corporate, etc. ownership ratio: over 10%
Continuing policy of reducing policy-holding shares (responding to the FSA cross-shareholding-unwinding policy)

Source: SOMPO HD official IR (https://www.sompo-hd.com/) 2025-05 earnings announcement / based on securities reports

2. Business segment map

Segment	Main operator	Characteristics
Domestic non-life	Sompo Japan	One of Japan’s 3 major non-life insurers (auto · fire · new-type · corporate insurance)
Domestic life	SOMPO Himawari Life	Mid-tier life position
Nursing care	SOMPO Care	Japan’s largest nursing-care operator (former Watami · former Message integration); core of the non-insurance segment
Overseas insurance	Sompo International (former Endurance)	Bermuda-based · specialty insurance + reinsurance, North-America-centric
Lloyd’s	DC Capital	UK Lloyd’s syndicate management
Emerging-market non-life	Sompo Sigorta (Turkey) / Sompo Brasil / Asia offices	Emerging-market small-scale diversification
Digital	SOMPO Digital Lab (Tokyo · US Silicon Valley · Tel Aviv offices)	“Real Data Platform” concept

Theme-park strategy

Synonymous with SOMPO’s management. Positions non-life + life + nursing care + digital + overseas insurance as a “theme park of security, safety, and health beyond insurance”
A concept long led by Kengo Sakurada (Chairman)
Placing nursing care (SOMPO Care) at the strategic core of the non-insurance segment is the clearest among Japan’s 3 major non-life insurers

Nursing-care business

SOMPO Care: integration of former Watami nursing care (acquired from Watami for 210 億円 in 2015 ) + former Message (TOB for approx. 270 億円 in 2016 )
2019 unified as SOMPO Care → Japan’s largest nursing-care operator scale by number of rooms

Overseas strategy

Sompo International (former Endurance Specialty): acquired for approx. 6300 億円 in 2017-03 → Bermuda-lineage · specialty insurance + reinsurance hub
North-America-centric: US non-life + Bermuda reinsurance
Emerging markets: small-scale diversification via Sompo Sigorta (Turkey) / Sompo Brasil / Asia offices
DC Capital: UK Lloyd’s syndicate management

Digital

SOMPO Digital Lab (Tokyo · Silicon Valley · Tel Aviv)
Palantir strategic alliance (2020): SOMPO HD invests approx. USD 5 億 (approx. 540 億円) in Palantir Technologies. SOMPO HD · Palantir · Palantir Japan, the 3 parties, launch a “Real Data Platform (RDP) for security, safety, and health” built on Palantir Foundry, integrating and analyzing data inside and outside the group starting from the nursing-care / health fields
Integrated-platform concept of nursing-care data + non-life data

Governance improvement since the Big Motor incident (FY2024 progress)

2024-01-26: Sompo Japan President Giichi Shirakawa resigns
2024-03: SOMPO HD CEO Kengo Sakurada steps down (moves to Chairman position) → management-top renewal
Successors: Koji Ishikawa assumes Sompo Japan presidency / Mikio Okumura SOMPO HD presidency structure
2024 business-improvement order (FSA · to Sompo Japan) → internal-control report · clarification of management responsibility
FY2024 internal-control evaluation: “effective” (improvement officially confirmed in the first comprehensive evaluation after rebuilding)
Board reform · raising the ratio of outside directors
Review of the used-car-repair-shop-dependent sales model (strengthening specific-repair-shop risk management)
2026 strategic alliances with DRS Group (vehicle-repair platform) / Zego (UK insurtech), etc. → pivot to an overseas / digital offensive after governance rebuilding
The 3 major non-life insurers’ cartel suspicion (advance adjustment of corporate insurance premiums, antitrust violation) is also separately under Fair Trade Commission investigation → industry-wide structural-reform pressure continues

4. Regulation / policy

Supervisor: Financial Services Agency (FSA)
Holding-company regulation: Insurance Business Act (insurance holding company)
Domestic non-life industry regulation: Insurance Business Act, Antitrust Act (cartel-suspicion related)
Overseas regulation:
- Bermuda Monetary Authority (BMA, Sompo International)
- State insurance regulators in the Americas
- UK PRA / FCA (DC Capital / Lloyd’s related)
- Turkey SEDDK (Sompo Sigorta)
Recent policy issues:
- 2024 business-improvement order (to Sompo Japan, Big Motor case) → internal-control report · clarification of management responsibility
- Suspected antitrust violation (3 major non-life insurers’ cartel suspicion, corporate-premium adjustment) → JFTC investigation
- Reduction of policy-holding shares (FSA cross-shareholding-unwinding policy)
- Increasing frequency of natural disasters → pressure for fire-insurance rate revision (via the General Insurance Rating Organization)

mufg · smfg · mizuho-fg · ndfg · nomura-hd
Japan’s 3 major non-life insurers: Tokio Marine HD (8766) / MS&AD HD (8725) / SOMPO HD (8630)

Sources

Wikipedia: SOMPO Holdings (public information, 2026-05-19 extraction)
Wikipedia: Sompo Japan / SOMPO Care / Sompo International (public information)
FSA business-improvement order (to Sompo Japan, Big Motor related, 2024 public announcement)
Japan Fair Trade Commission (related to the 3 major non-life insurers’ cartel-suspicion investigation, public announcement)
Nihon Keizai Shimbun “SOMPO invests 540 億円 in US data major Palantir” (https://www.nikkei.com/article/DGXMZO60525400Y0A610C2EE9000/, 2020-06) — confirmation of approx. USD 5 億 investment in Palantir
Shin Nihon Insurance News “SOMPO Holdings launches a ‘Real Data Platform for security, safety, and health’ with Palantir” (https://www.shinnihon-ins.co.jp/industry-news/industry-news-20200622-9/, 2020-06-22) — confirmation of RDP / Palantir Foundry / 3 -party alliance

[!info] Verification status confidence: likely (v1.1 IR reflected 2026-05-19). The FY2024 (2025-03 term) consolidated earnings figures (ordinary revenue 5.45 兆 / net profit 4,229 億 / total assets 15.03 兆 / consolidated employees 54,106 名 / SOMPO Care approx. 470 facilities) are reflected on a SOMPO HD official IR basis. The management change (Shirakawa 2024-01 / Sakurada 2024-03) and the “effective” internal-control evaluation are also added. The Endurance acquisition amount and integration date are based on Wikipedia public materials. The 3 major non-life insurers’ cartel-suspicion disposition is an ongoing matter → periodic updates required.