Sompo Japan Insurance
Corporate brand
UnclaimedA Japanese property and casualty insurer with roots in Japan’s first fire-insurance company and operations spanning insurance, risk management and related financial services.
Last updated October 14, 2026
Overview
Sompo Japan Insurance is a Japanese property and casualty insurance company whose historical roots extend to Tokyo Fire Insurance Company, established in 1887 as Japan’s first fire-insurance company. The company developed through a succession of mergers and acquisitions associated with the Yasuda business group. Tokyo Fire Insurance was absorbed into the Yasuda zaibatsu by entrepreneur Zenjiro Yasuda in 1893. In 1944, Tokyo Fire Insurance merged with Imperial Marine Insurance and First Engine & Boiler Insurance to form Yasuda Fire & Marine Insurance Company. This predecessor supplied the organization with its long-term focus on fire, marine and other general-insurance risks. The modern Sompo Japan entity was created on July 1, 2002, when Yasuda Fire and Nissan Fire & Marine Insurance merged. The company expanded its scale through the acquisition of Taisei Fire & Marine Insurance in December 2002 and through the purchase of Nipponkoa Insurance in September 2014. Following the latter transaction, the combined company was known as Sompo Japan Nipponkoa Insurance for a period before returning to the shorter Sompo Japan identity. As of 2010, it was a wholly owned subsidiary of SOMPO Holdings, the insurance group that also provides the wider corporate structure for the brand. Sompo Japan’s core business is non-life insurance, including property, casualty, motor, marine and commercial coverage. Its broader group activities have also included life insurance, securities, asset management, venture capital and risk-management services. In Japan, the company has historically been one of the largest property insurers, ranking behind Tokio Marine in the cited 2007 market comparison, when its reported share was 19.3 percent. Internationally, the company and related subsidiaries serve Japanese corporate customers and local clients through offices, branches, joint ventures and specialist insurance platforms. The company’s international development includes operations in North America, Latin America, Europe and the Asia-Pacific region. Its European business has maintained a presence in countries including the United Kingdom, Belgium, France, Germany, Italy, the Netherlands, Spain and Turkey. Its European organization has been a corporate member of Lloyd’s of London since 1993, supporting underwriting, claims settlement, risk management and insurance information services, particularly for Japanese businesses operating overseas. In 2014, Sompo acquired specialist Lloyd’s market company Canopius Group, broadening its specialty-insurance capabilities. In the Americas, Sompo Japan has operated through entities in the United States, Canada, Mexico and Brazil. The acquisition of Bermuda-based Endurance in 2016 was intended to create a more integrated global reinsurance and specialty-insurance platform, subsequently known as Sompo International. In Asia-Pacific, the company has participated in businesses in the Philippines, China, Malaysia, India, Indonesia and Australia, including joint ventures and locally incorporated insurers. Sompo Japan has also faced significant reputational and governance challenges. Its 1987 purchase of Vincent van Gogh’s “Sunflowers” later became the subject of a restitution lawsuit filed in Chicago in 2022 by heirs of Jewish banker and art collector Paul von Mendelssohn-Bartholdy. In 2023, the company was implicated in the Big Motor insurance-fraud scandal. Japan’s Financial Services Agency found that Sompo Japan continued its relationship with Big Motor despite warnings about systematic fraud and despite other insurers suspending business and investigating. Regulatory scrutiny included a raid on Sompo Japan’s Tokyo offices in September 2023 and an order to improve management practices. President Giichi Shirakawa resigned in January 2024, and CEO Kengo Sakurada stepped down in March 2024. These events made governance, compliance and sales incentives central issues in the company’s recent public profile.
History
Sompo Japan’s corporate lineage begins with Tokyo Fire Insurance Company, founded in 1887 as Japan’s first fire-insurance company. The new insurer sought to build public awareness of fire coverage at a time when organized insurance was still developing in Japan. It expanded rapidly enough to open five branch offices within its first year, but the major Yokosuka fire of 1890 placed severe pressure on the young business and nearly caused its collapse. In 1893, entrepreneur Zenjiro Yasuda absorbed Tokyo Fire Insurance into the Yasuda zaibatsu. The company’s later history followed the consolidation of Japan’s insurance industry. In 1944, Tokyo Fire Insurance joined Imperial Marine Insurance and First Engine & Boiler Insurance in a merger that created Yasuda Fire & Marine Insurance Company. The resulting business combined fire and marine capabilities and became an important predecessor of the modern Sompo organization. Yasuda Fire attracted international attention in 1987 when it successfully bid for Vincent van Gogh’s “Sunflowers,” reportedly paying approximately 5.3 billion yen. The acquisition later became controversial because heirs of Jewish banker and art collector Paul von Mendelssohn-Bartholdy alleged that the work had a Holocaust-related provenance requiring restitution. They filed suit in Chicago in December 2022. The present Sompo Japan company was formed on July 1, 2002, through the merger of Yasuda Fire and Nissan Fire & Marine Insurance. The new organization adopted the Sompo Japan name and continued operating primarily as a general insurer. In December 2002, it acquired Taisei Fire & Marine Insurance, strengthening its domestic platform. A major second-stage consolidation occurred in September 2014, when Sompo Japan acquired Nipponkoa Insurance. The combined company used the name Sompo Japan Nipponkoa Insurance for a period. The transaction increased the group’s domestic scale and helped support broader international expansion. Sompo Japan’s international network subsequently included offices and subsidiaries in 28 countries, with activities covering property and casualty insurance, corporate risk management, underwriting and claims services. In Europe, the company built a presence across major commercial-insurance markets and maintained a Lloyd’s of London corporate membership from 1993. Its European business focused particularly on Japanese companies operating abroad, while also participating in specialty underwriting. In April 2014, Sompo agreed to acquire Canopius Group, a specialist Lloyd’s market company, for a reported £594 million. In the Americas, it operated through businesses in the United States, Canada, Mexico and Brazil. The 2016 acquisition of Bermuda-based Endurance for approximately US$6.3 billion created the basis of Sompo International, an integrated global insurance and reinsurance platform. John Charman, formerly Endurance’s chairman and chief executive, led the new organization and reported to Sompo chief executive Kengo Sakurada. The company also developed a broad Asia-Pacific presence. Its activities included a Philippine partnership dating from 1991, a Chinese subsidiary established in Dalian in 2005, a Malaysian investment made in 2007, an Indian joint venture established in 2008 and continuing operations in Australia. In 2022, Sompo Indonesia partnered with Roojai Insurance on online motor-insurance services. Sompo Japan’s recent history has been heavily shaped by governance and compliance problems. In 2023, the company became implicated in allegations surrounding Big Motor, Japan’s then-largest used-car dealer. Regulators said Sompo Japan had been alerted to systematic insurance fraud but continued the business relationship, while other major insurers suspended dealings and investigated. The Financial Services Agency searched the company’s Tokyo offices in September 2023 and concluded that management had failed to respond appropriately to concerns, including allegations that Big Motor received preferential treatment in the sale of Sompo Japan insurance. The regulator ordered management improvements. President Giichi Shirakawa resigned on January 26, 2024, and CEO Kengo Sakurada stepped down in March 2024. The affair intensified scrutiny of insurer-dealer relationships, sales incentives and internal controls.
- 2024
Senior leaders resign after the Big Motor affair
[1]President Giichi Shirakawa and CEO Kengo Sakurada leave their positions following regulatory action and governance criticism.
- 2024
Senior leadership changes follow regulatory scrutiny
[1]President Giichi Shirakawa resigned in January and Sompo Holdings chief executive Kengo Sakurada stepped down in March after the Big Motor affair.
- 2023
Big Motor scandal triggers regulatory scrutiny
[1]The Financial Services Agency investigates Sompo Japan’s handling of its relationship with Big Motor and searches its Tokyo offices.
- 2023
Big Motor insurance scandal
[1]Sompo Japan faced regulatory investigation and public criticism over its continued relationship with Big Motor amid allegations of systematic insurance fraud.
- 2016
Endurance acquisition creates Sompo International
[1]Sompo completes the acquisition of Endurance and integrates it into Sompo International.
- 2016
Endurance becomes part of Sompo International
[1]Sompo completed its approximately US$6.3 billion acquisition of Endurance and integrated it into a Bermuda-based international insurance and reinsurance platform.
- 2014
Nipponkoa Insurance is acquired
[1]Sompo Japan acquires Nipponkoa Insurance and subsequently operates under the Sompo Japan Nipponkoa name.
- 2014
Canopius Group acquisition is agreed
[1]Sompo agreed to acquire specialist Lloyd’s market company Canopius Group for approximately £594 million.
- 2002
Sompo Japan is created
[1]Yasuda Fire and Nissan Fire & Marine Insurance merged on July 1 to create Sompo Japan Insurance Inc.
- 2002
Taisei Fire & Marine Insurance is acquired
[1]Sompo Japan acquired Taisei Fire & Marine Insurance in December.
Showing the 10 most recent.
Products and positioning
A large Japanese general insurer combining domestic property and casualty insurance with international commercial, specialty, reinsurance and risk-management capabilities.
Property insurance · 1887
Property and fire insurance
Property and fire coverage represents the company’s historical core. The business originated in an insurer established specifically to develop fire-insurance awareness in Japan and later expanded to cover residential, commercial and organizational property risks. Exact current policy names and terms are not specified in the supplied sources.
Personal and commercial insurance
Motor insurance
Sompo Japan provides motor-insurance services in Japan and through overseas businesses. The company’s motor-insurance activities became especially prominent in public reporting because of its relationship with used-car dealer Big Motor, where vehicle-repair and insurance-sales practices were investigated by Japanese regulators. Sompo Japan’s automobile insurance business covers common vehicle-related risks for private and commercial users, including third-party liability and damage connected with accidents. Automobile insurance is also important to the company’s distribution relationships with vehicle dealers and repair networks, a channel that became a major governance issue during the Big Motor scandal.
Commercial insurance · 1944
Marine insurance
Marine insurance is part of the company’s historical general-insurance portfolio. The 1944 merger that formed Yasuda Fire & Marine Insurance combined fire and marine capabilities, and marine coverage remains part of the commercial-risk tradition inherited by Sompo Japan. Marine insurance is part of the company’s long-standing commercial insurance capability. Its historical predecessor became Yasuda Fire & Marine Insurance in 1944 after a merger that combined fire, marine and engineering-related businesses. The modern business serves shipping, cargo and other transport-related risks within a broader commercial insurance portfolio.
Commercial insurance
Commercial casualty and liability insurance
The company serves businesses and institutions with property, casualty, liability and other commercial risk solutions. Its international network has particularly supported Japanese companies operating abroad, combining insurance placement with claims, risk-management and insurance-information services.
Specialty insurance · 2016
Specialty and reinsurance
Sompo’s international platform includes specialty underwriting and reinsurance capabilities. The acquisition of Canopius expanded its Lloyd’s-related specialty presence, while the Endurance transaction created Sompo International as a broader integrated insurance and reinsurance organization based in Bermuda.
Risk services
Risk-management services
Alongside underwriting, Sompo Japan’s international operations provide corporate risk management, claims settlement and insurance information. These services are aimed particularly at commercial clients and Japanese businesses with cross-border operations.
Property insurance · 1887
Fire and home insurance
Fire insurance is central to Sompo Japan’s historical identity, reflecting the company’s origin in Tokyo Fire Insurance. Modern property offerings extend beyond fire damage to cover homes, buildings and associated risks. Depending on the policy and market, property insurance can include protection for natural catastrophes, contents, business interruption and other related exposures.
Personal lines
Personal accident insurance
Personal accident insurance protects individuals against specified accidental injuries and related consequences. It complements Sompo Japan’s automobile, home and other personal insurance products and forms part of the company’s broad Japanese non-life insurance offering.
Commercial insurance
Commercial property and casualty insurance
Sompo Japan serves businesses with insurance for property damage, liability, marine exposures, accidents and other operational risks. Through the wider Sompo group and Sompo International, the commercial portfolio extends into specialty underwriting and reinsurance for multinational and complex risks.
Controversies
2023
Big Motor insurance-fraud affair
Sompo Japan was criticized for maintaining a close business relationship with Big Motor after being alerted to systematic insurance fraud. Regulatory findings and a search of the company’s offices raised questions about management awareness, sales incentives, internal controls and preferential insurance distribution. Sompo Japan was implicated in the wider Big Motor scandal after the used-car dealer was accused of systematic insurance fraud. Regulators scrutinized Sompo Japan because it continued business with Big Motor despite warnings and concerns, and because of the commercial importance of Big Motor’s sales channel. The Financial Services Agency searched Sompo Japan’s offices in September 2023 and criticized the company’s management and oversight.
2022
Van Gogh Sunflowers restitution lawsuit
Heirs of Paul von Mendelssohn-Bartholdy sued in Chicago over the restitution of Van Gogh’s Sunflowers, alleging that the painting’s Holocaust-linked ownership history was not properly addressed when it was acquired by the predecessor Yasuda Fire in 1987.
2022
Litigation over the provenance of Sunflowers
Heirs of Jewish banker and art collector Paul von Mendelssohn-Bartholdy filed suit in Chicago seeking to reclaim Vincent van Gogh’s Sunflowers, which Yasuda Fire acquired in 1987. The plaintiffs alleged that the insurer failed to account adequately for the painting’s Holocaust-linked ownership history.
Brand decisions
2024
Strengthen management practices after Big Motor investigationStrategyBackground
Regulatory scrutiny found serious problems in Sompo Japan’s response to warnings about Big Motor’s insurance practices and raised questions about internal governance.
Action taken
The Financial Services Agency ordered improvements to management practices, followed by the resignation of Sompo Japan president Giichi Shirakawa and the departure of Sompo Holdings chief executive Kengo Sakurada.
Aftermath
The affair produced senior leadership changes and increased scrutiny of insurer-dealer relationships, claims governance and compliance controls.
2023
Respond to Big Motor regulatory findingsStrategyBackground
Regulators concluded that Sompo Japan had not responded adequately to warnings concerning alleged systematic insurance fraud at Big Motor.
Action taken
The Financial Services Agency ordered the company to improve managerial and governance practices.
Aftermath
President Giichi Shirakawa resigned in January 2024 and CEO Kengo Sakurada stepped down in March 2024.
2016
Acquire Endurance and establish Sompo InternationalM&ABackground
Sompo pursued a larger international platform in commercial insurance and reinsurance, using Endurance’s Bermuda base and global specialty capabilities.
Action taken
Sompo acquired 100 percent of Endurance and integrated it into the newly launched Sompo International platform.
Aftermath
Endurance was delisted from the New York Stock Exchange, while Sompo International became a major vehicle for the group’s global specialty and reinsurance activities.
Acquisition consideration. US$6.3 billion (October 2016)
2014
Acquire Nipponkoa InsuranceM&ABackground
Sompo Japan pursued greater scale in Japan’s consolidated property and casualty insurance market.
Action taken
The company acquired Nipponkoa Insurance and adopted the Sompo Japan Nipponkoa name for a period.
Aftermath
The transaction increased the combined group’s domestic scale and supported its international platform.
2014
Purchase Canopius GroupM&ABackground
Sompo sought to increase its specialty insurance and international underwriting presence, particularly in the Lloyd’s market.
Action taken
Sompo agreed to acquire Canopius Group, a specialist Lloyd’s market company.
Aftermath
The acquisition broadened the group’s international specialty-insurance presence. The acquisition expanded Sompo’s access to specialist commercial insurance and Lloyd’s underwriting capabilities.
Acquisition consideration. £594 million (April 2014)
2002
Merge Yasuda Fire with Nissan Fire & MarineM&ABackground
The merger combined two Japanese general insurers and created the modern Sompo Japan organization. Japan’s insurance sector was undergoing consolidation, and the two insurers combined their operations to create a larger non-life insurance company.
Action taken
The merger was completed on July 1, 2002, creating Sompo Japan Insurance Inc.
Aftermath
The new company subsequently expanded through further acquisitions, including Taisei Fire & Marine Insurance. The new company became one of Japan’s leading property and casualty insurers and continued expanding through acquisitions.
Recent events
- 2016
Sompo completes Endurance acquisition and launches Sompo International platform[1]
M&A
Sompo Japan Nipponkoa completed its acquisition of Bermuda-based insurer Endurance and integrated the business into a new global insurance and reinsurance platform called Sompo International.
- 2014
Sompo Japan acquires Nipponkoa Insurance[1]
M&A
The transaction created a larger combined Japanese insurance business that operated for a period under the Sompo Japan Nipponkoa name.
- 2014
Sompo purchases Canopius Group[1]
M&A
The acquisition strengthened Sompo’s specialty insurance and Lloyd’s market capabilities.
- 2002
Sompo Japan is created through the merger of Yasuda Fire and Nissan Fire & Marine[1]
M&A · Other
The merger established Sompo Japan Insurance as a new major Japanese non-life insurer.
- 2002
Sompo Japan acquires Taisei Fire & Marine Insurance[1]
M&A
The company expanded its domestic insurance platform through the acquisition of Taisei Fire & Marine Insurance.
Sources1 sources
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