Casualty insurance underwriting focuses on protecting individuals and businesses against unforeseen losses, liabilities, and damages. This industry comprises companies that provide a variety of products like auto, home, and workers’ compensation insurance. With increasing awareness about risk management and the need for financial security, the demand for these services is evolving. Innovations in technology and data analytics are streamlining underwriting processes, leading to improved customer service. Industry analysts anticipate strong growth, driven by emerging risks such as cyber threats and changing regulatory landscapes, challenging companies to adapt and enhance their offerings.

This list features 21 notable casualty insurance underwriting companies, each with substantial workforces and diverse specializations. The firms range from large, established names like State Farm and Liberty Mutual to innovative players like TATA AIG in India. Founded between 1905 and 2008, these companies have made significant impacts in their respective markets, emphasizing tailored insurance solutions to address the unique needs of families, small businesses, and corporations.

Continue reading to explore the top casualty insurance underwriting companies.

Top 21 Casualty Insurance Underwriting Companies

1. State Farm

• Website: statefarm.com
• Ownership type: Private
• Headquarters: Bloomington, Illinois, United States (USA)
• Employee distribution: United States (USA) 100%
• Founded year: 1922
• Headcount: 10001+
• LinkedIn: state_farm

State Farm Insurance, founded in 1922 and headquartered in Bloomington, Illinois, is a prominent insurance and financial services provider. The company offers a comprehensive array of insurance products, including auto, home, life, and health insurance, alongside investment services. State Farm serves individuals, families, and small businesses, helping them protect their assets and manage risks effectively. With a workforce exceeding 106,000 employees, the company operates solely in the United States, emphasizing its commitment to local markets. State Farm's extensive portfolio includes casualty insurance products such as personal liability and workers' compensation, making it a key player in the casualty insurance underwriting space. The company has also developed innovative solutions like the Personal Price Plan, which tailors insurance offerings to meet individual customer needs. State Farm's dedication to community involvement and environmental sustainability further enhances its reputation in the industry.

2. Farmers Insurance

• Website: farmers.com
• Ownership type: Private
• Headquarters: Los Angeles, California, United States (USA)
• Employee distribution: United States (USA) 100%
• Latest funding: Other (Debt), $300.0M, October 2024
• Founded year: 1928
• Headcount: 10001+
• LinkedIn: farmers-insurance

Farmers Insurance, based in Los Angeles, California, is a prominent insurance provider that has been serving customers since its inception in 1928. The company offers a wide array of insurance products, including auto, home, life, and business insurance, catering to both individual consumers and small businesses. Farmers Insurance is dedicated to helping clients manage risks and protect their assets through customized insurance solutions. They operate through a robust network of agents, ensuring personalized service and support for their customers. Farmers Insurance has also made significant strides in the industry, as evidenced by their recent funding of $300 million in October 2024, which underscores their commitment to growth and innovation in the insurance market. Their focus on claims management and customer education further solidifies their position as a relevant player in the insurance sector.

3. American Family Insurance

• Website: amfam.com
• Ownership type: Private
• Headquarters: Madison, Wisconsin, United States (USA)
• Employee distribution: United States (USA) 100%
• Founded year: 1927
• Headcount: 10001+
• LinkedIn: american-family-insurance

American Family Insurance, founded in 1927 and headquartered in Madison, Wisconsin, is a private insurance company that offers a comprehensive suite of insurance products. These include property, casualty, auto, life, health, and homeowners insurance, along with investment and retirement-planning services. The company aims to protect the financial well-being of its customers through tailored insurance solutions. With over 17,000 employees, American Family Insurance serves millions of customers across the United States, emphasizing a customer-centric approach. Their commitment to community involvement and corporate responsibility is evident through various initiatives aimed at enhancing social impact and supporting local communities. The company has not reported any recent funding, indicating a stable operational model based on its established market presence and customer trust.

4. TATA AIG General Insurance Company Limited

• Website: tataaig.com
• Ownership type: Private
• Headquarters: Mumbai, Maharashtra, India
• Employee distribution: India 100%
• Founded year: 2000
• Headcount: 1001-5000
• LinkedIn: tata-aig

TATA AIG General Insurance Company Limited, established in 2000, operates out of Mumbai, Maharashtra, India. It is a joint venture between the Tata Group and American International Group (AIG). The company provides a comprehensive array of general insurance products, including motor, health, travel, and business insurance. TATA AIG serves both individual consumers and businesses, focusing on risk management solutions that safeguard against financial losses. With a workforce of over 8,000 employees and a distribution network that includes more than 89,000 licensed agents, TATA AIG has issued over 1 crore policies and served more than 5 crore customers since its inception. The company recorded a Gross Written Premium (GWP) of 15,423 Crores as of March 31, 2023, indicating its substantial presence in the market. TATA AIG's offerings include casualty insurance, which is critical for businesses and individuals seeking protection against liabilities and unforeseen events. Their commitment to innovation and customer service is evident in their seamless claims process and extensive network of service partners.

5. HDFC ERGO General Insurance

• Website: hdfcergo.com
• Ownership type: Private
• Headquarters: Mumbai, Maharashtra, India
• Employee distribution: India 100%
• Founded year: 2008
• Headcount: 1001-5000
• LinkedIn: hdfcergo

HDFC ERGO General Insurance Company Limited, founded in 2008 and based in Mumbai, Maharashtra, is a private insurance provider that specializes in a wide array of insurance products. These include health, vehicle, travel, home, and notably, casualty insurance. The company serves both individual consumers and businesses, helping them manage risks and protect against financial losses from unforeseen events. HDFC ERGO is committed to customer service, aiming to deliver accessible and dependable insurance solutions. With a workforce of over 11,000 employees, the company has established a significant presence in the Indian insurance market. It has also been recognized for its innovative approaches and customer-centric initiatives, further solidifying its role in the insurance industry.

6. Axa Xl

• Website: axaxl.com
• Ownership type: Private
• Headquarters: Hamilton, Pembroke, Bermuda
• Employee distribution: India 33%, United States (USA) 19%, United Kingdom (UK) 13%, Other 35%
• Founded year: 1986
• Headcount: 10001+
• LinkedIn: axaxl

Axa XL, founded in 1986 and based in Hamilton, Bermuda, is a prominent insurance and reinsurance company. It operates under the umbrella of AXA, a well-known global insurance group. Axa XL specializes in providing a comprehensive range of risk management solutions, particularly for mid-sized and multinational businesses, as well as high-net-worth individuals. The company offers various insurance products, including professional liability, casualty, and specialty insurance. With a workforce of over 10,000 employees distributed across key markets such as the United States, India, and the United Kingdom, Axa XL demonstrates a strong global presence. Their commitment to casualty insurance is evident in their extensive product offerings and their focus on understanding the unique needs of their clients. Axa XL also emphasizes risk consulting and claims management, ensuring that they provide not just coverage but also valuable insights and support to their clients.

7. Berkshire Hathaway Specialty Insurance

• Website: bhspecialty.com
• Ownership type: Corporate
• Headquarters: Boston, Massachusetts, United States (USA)
• Employee distribution: United States (USA) 52%, Australia 11%, United Kingdom (UK) 9%, Other 29%
• Latest funding: May 2017
• Founded year: 2013
• Headcount: 1001-5000
• LinkedIn: berkshire-hathaway-specialty-insurance

Berkshire Hathaway Specialty Insurance (BHSI), based in Boston, Massachusetts, is a corporate entity that specializes in a broad spectrum of insurance products, including casualty, property, and healthcare liability insurance. Since its inception in 2013, BHSI has focused on serving businesses and organizations across various sectors, providing crucial coverage to manage risks and mitigate financial losses. The company operates globally, with a significant presence in the United States, Australia, the United Kingdom, Canada, and Germany, among others. BHSI is part of the Berkshire Hathaway group of insurance companies, which lends it a strong reputation and financial backing. The company has made notable strides in the industry, including recent leadership changes aimed at enhancing its casualty and healthcare underwriting capabilities. BHSI's commitment to innovation and customer service positions it as a relevant player in the casualty insurance market.

8. Sompo

• Website: sompo-intl.com
• Ownership type: Corporate
• Headquarters: Bermuda
• Employee distribution: United States (USA) 61%, United Kingdom (UK) 17%, Bermuda 4%, Other 18%
• Latest funding: $6.3B, March 2017
• Founded year: 2001
• Headcount: 5001-10000
• LinkedIn: sompo-international

Sompo International is an insurance and reinsurance company based in Bermuda, founded in 2001. It provides a broad spectrum of risk management solutions tailored to businesses and organizations across various sectors. Sompo specializes in several insurance products, including agriculture, aviation, casualty, cyber, and property insurance. The company operates on a global scale, ensuring compliance with local regulations while delivering high-quality service. With a workforce of over 4,000 employees, Sompo has a significant presence in the United States, the United Kingdom, and other regions. Their casualty insurance offerings include tailored protection for various industries, demonstrating their expertise in addressing complex risk exposures. Sompo's financial strength is reflected in their A+ ratings from A.M. Best and Standard & Poor's, indicating a solid foundation in the insurance market.

9. Huk-coburg

• Website: huk.de
• Ownership type: Private
• Headquarters: Coburg, Bavaria, Germany
• Employee distribution: Germany 100%
• Founded year: 1933
• Headcount: 10001+
• LinkedIn: huk-coburg

HUK-COBURG, founded in 1933 and based in Coburg, Bavaria, Germany, is a private insurance company that provides a wide array of insurance products. Their offerings include auto, health, liability, and property insurance, catering primarily to individual consumers. HUK-COBURG is particularly known for its strong presence in the auto insurance market, often recognized as a top provider in this segment. The company emphasizes a customer-centric approach, allowing clients to manage their policies and claims online, which enhances user experience and accessibility. With a workforce of over 10,000 employees, HUK-COBURG operates exclusively in Germany, focusing on delivering tailored insurance solutions to meet the needs of its customers. The company has not reported any recent funding, indicating stability and self-sufficiency in its operations.

10. Liberty Mutual Insurance

• Website: libertymutualgroup.com
• Ownership type: Private
• Headquarters: Boston, Massachusetts, United States (USA)
• Employee distribution: United States (USA) 94%, Other 6%
• Founded year: 1912
• Headcount: 10001+
• LinkedIn: liberty-mutual-insurance

Liberty Mutual Insurance, founded in 1912 and based in Boston, Massachusetts, is a prominent insurance provider specializing in property and casualty insurance. The company offers a comprehensive range of products, including personal automobile, homeowners, specialty lines, reinsurance, and various commercial insurance solutions. With over 45,000 employees and operations in 29 countries, Liberty Mutual has positioned itself as a key player in the global insurance market. The company is recognized for its commitment to risk management and customer service, providing tailored insurance solutions to both individual consumers and businesses. Liberty Mutual's significant presence in the casualty insurance sector, particularly through its offerings in workers' compensation and general liability, underscores its relevance in the industry.

11. Amica Insurance

• Website: amica.com
• Ownership type: Corporate
• Headquarters: Lincoln, Rhode Island, United States (USA)
• Employee distribution: United States (USA) 100%
• Latest funding: December 2003
• Founded year: 1907
• Headcount: 1001-5000
• LinkedIn: amica-mutual-insurance-co

Amica Mutual Insurance Company, founded in 1907 and headquartered in Lincoln, Rhode Island, is a mutual insurance provider that specializes in a range of insurance products. The company offers auto, home, life, and various other types of insurance, including umbrella and small business insurance. Amica is known for its direct-to-consumer model, which allows it to maintain close relationships with its policyholders. This approach is complemented by a strong focus on customer service, as evidenced by its high customer retention rates. The company has received an A+ (Superior) rating for financial strength from AM Best, indicating its solid standing in the insurance industry. Amica's commitment to empathy and support is reflected in its marketing and customer service strategies, making it a notable player in the insurance sector.

12. GEICO Local Office

• Website: geico.com
• Ownership type: Private Equity
• Headquarters: Chevy Chase, Maryland, United States (USA)
• Employee distribution: United States (USA) 100%
• Latest funding: January 1996
• Founded year: 1936
• Headcount: 201-500
• LinkedIn: geico-local-office

GEICO Local Office, based in Chevy Chase, Maryland, is a private equity-owned entity that operates under the Government Employees Insurance Company (GEICO) brand. Founded in 1936, the company has established itself as a prominent provider of insurance solutions, catering to both individual consumers and businesses. GEICO Local Office offers a wide array of insurance products, including auto, property, and business insurance, which are essential for managing risks and protecting assets. The company emphasizes online platforms and customer service channels to enhance accessibility and efficiency for its clients. With a workforce of approximately 421 employees, GEICO Local Office plays a crucial role in the broader GEICO network, contributing to the underwriting of various casualty insurance products.

13. American National

• Website: americannational.com
• Ownership type: Corporate
• Headquarters: Galveston, Texas, United States (USA)
• Employee distribution: United States (USA) 99%
• Latest funding: $5.1B, August 2021
• Founded year: 1905
• Headcount: 1001-5000
• LinkedIn: american-national-insurance

American National Insurance Company, founded in 1905 and headquartered in Galveston, Texas, is a prominent insurance provider. The company offers a wide array of insurance products, including life, health, and property insurance. It serves both individual consumers and businesses, helping them manage risks and secure financial stability. American National operates in all 50 states and Puerto Rico, showcasing its extensive reach. A key aspect of its operations is the American National Property and Casualty Company, which focuses on underwriting casualty insurance products. This includes auto, homeowners, and business insurance, among others. In 2021, the company reported a significant funding amount of $5.1 billion, indicating strong financial backing and support for its operations.

14. Amwins

• Website: amwins.com
• Ownership type: Venture Capital
• Headquarters: Charlotte, North Carolina, United States (USA)
• Employee distribution: United States (USA) 99%, Other 1%
• Latest funding: $10.0M, March 2020
• Founded year: 1998
• Headcount: 5001-10000
• LinkedIn: amwins-group

Amwins, founded in 1998 and headquartered in Charlotte, North Carolina, is a prominent specialty insurance broker that provides tailored insurance solutions across various industries, including construction, healthcare, and energy. With a workforce of over 4,800 employees, the company serves retail agents and businesses, helping them navigate complex insurance needs and secure appropriate coverage. Amwins specializes in difficult placements and unique opportunities, leveraging extensive market relationships and expertise to deliver effective insurance solutions. Their operations include a strong focus on casualty insurance, with dedicated teams that address challenging exposures and emerging risks. The company has also received significant funding, with the last reported amount being nearly $10 million in March 2020, indicating ongoing investment in their capabilities and market reach.

15. Arch Insurance Group Inc.

• Website: archinsurance.com
• Ownership type: Private
• Headquarters: Jersey City, New Jersey, United States (USA)
• Employee distribution: United States (USA) 86%, United Kingdom (UK) 8%, Canada 3%, Other 4%
• Founded year: 2001
• Headcount: 1001-5000
• LinkedIn: arch-insurance-group

Arch Insurance Group Inc., a subsidiary of Arch Capital Group Ltd., operates from Jersey City, New Jersey, and has been active in the insurance industry since its inception in 2001. The company provides specialty risk solutions, primarily focusing on property and casualty insurance. With a workforce of over 2,600 employees, Arch Insurance serves a wide array of businesses and organizations, helping them navigate risks and safeguard their assets. Their disciplined underwriting approach is complemented by a commitment to innovation, allowing them to adapt to the evolving needs of their clients. Arch Insurance operates globally, with a significant presence in North America, Europe, and Australia, and is recognized for its expertise in managing complex risks. The company does not report any recent funding, indicating a stable operational model supported by its parent company, Arch Capital Group Ltd.

16. Sompo Seguros

• Website: sompo.com.br
• Ownership type: Corporate
• Headquarters: Sao Paulo, Sao Paulo, Brazil
• Employee distribution: Brazil 99%
• Latest funding: $210.0M, May 2022
• Founded year: 1943
• Headcount: 501-1000
• LinkedIn: sompo-seguros

Sompo Seguros S.A., founded in 1943 and based in São Paulo, Brazil, is a corporate insurance provider that specializes in a wide array of insurance products. The company caters to both businesses and individual customers, offering tailored solutions to manage risks and protect assets. Their product lineup includes corporate insurance, personal insurance, health insurance, and notably, casualty insurance products such as professional liability and general liability coverage. Sompo Seguros is part of the global Sompo Holdings group, which enhances its operational capabilities and market presence. The company has shown growth and relevance in the industry, as evidenced by a significant funding round of 210 million BRL in May 2022, which underscores its ongoing commitment to expanding its offerings and improving service delivery.

17. Auto-Owners Insurance

• Website: auto-owners.com
• Ownership type: Private
• Headquarters: Lansing, Michigan, United States (USA)
• Employee distribution: United States (USA) 100%
• Founded year: 1916
• Headcount: 5001-10000
• LinkedIn: auto-owners-insurance

Auto-Owners Insurance, based in Lansing, Michigan, has been a significant player in the insurance industry since its inception in 1916. The company offers a comprehensive suite of insurance products, including auto, home, life, and business insurance, catering to both individual consumers and businesses. Their casualty insurance offerings include commercial auto and workers' compensation, which are essential for businesses managing risk. Auto-Owners operates through a network of independent agents, ensuring that clients receive tailored advice and support. The company is recognized for its commitment to customer service and claims management, having received numerous awards in these areas. With a workforce of over 5,000 employees, Auto-Owners Insurance continues to uphold its reputation for reliability and community involvement, making it a noteworthy entity in the insurance sector.

18. HDI Global SE

• Website: hdi.global
• Ownership type: Corporate
• Headquarters: Hanover, Lower Saxony, Germany
• Employee distribution: Germany 36%, United Kingdom (UK) 9%, Netherlands 8%, Other 47%
• Latest funding: November 2021
• Founded year: 1903
• Headcount: 5001-10000
• LinkedIn: hdiglobal-se

HDI Global SE, based in Hanover, Germany, has been a prominent insurance provider since its founding in 1903. The company specializes in a broad spectrum of insurance solutions, including property, liability, and specialized coverage tailored for various industries. With a workforce of approximately 4,098 employees, HDI Global SE operates on a global scale, serving businesses that require comprehensive risk management services to safeguard their operations and assets. Their offerings include critical areas such as liability insurance, which is essential for casualty underwriting. The company has also expanded its specialty insurance business through the acquisition of HDI Global Specialty SE, enhancing its capabilities in this sector. With a reported insurance revenue of €9.1 billion in 2023, HDI Global SE demonstrates significant financial strength and stability in the insurance market.

19. Federated Insurance

• Website: federatedinsurance.com
• Ownership type: Private
• Headquarters: Owatonna, Minnesota, United States (USA)
• Employee distribution: United States (USA) 100%
• Founded year: 1904
• Headcount: 1001-5000
• LinkedIn: federated-insurance

Federated Insurance, based in Owatonna, Minnesota, is a private insurance provider that has been operational since 1904. The company specializes in property and casualty insurance, catering primarily to businesses across various sectors. With a workforce of approximately 2,635 employees, Federated Insurance offers a comprehensive suite of insurance products designed to protect businesses from various risks. Their commitment to risk management is evident through initiatives like the Risk Management Academy, which provides clients with valuable resources and training to enhance their understanding of risk mitigation. Federated Insurance also emphasizes the importance of safe driving practices and has developed programs to support clients in managing their operational risks effectively. This focus on education and proactive risk management positions them as a significant player in the casualty insurance underwriting field.

20. Tokio Marine HCC

• Website: hccsurety.com
• Ownership type: Private
• Headquarters: Los Angeles, California, United States (USA)
• Employee distribution: United States (USA) 100%
• Founded year: 2004
• Headcount: 501-1000
• LinkedIn: hcc-surety-group

Tokio Marine HCC, founded in 2004 and based in Los Angeles, California, is a private insurance company that provides a wide array of insurance products. The company operates primarily in the casualty insurance sector, offering specialized solutions such as casualty liability, professional liability, and excess casualty coverage. Tokio Marine HCC serves a variety of industries, including contractors, manufacturers, and hospitality, helping businesses manage risks and protect against financial losses. Their underwriting teams are dedicated to crafting tailored insurance solutions, reflecting their commitment to meeting the specific needs of their clients. As a member of the Tokio Marine Group, Tokio Marine HCC benefits from a strong financial foundation, which supports its operations and enhances its reputation in the insurance market.

21. SBI General Insurance

• Website: sbigeneral.in
• Ownership type: Private Equity
• Headquarters: Mumbai, Maharashtra, India
• Employee distribution: India 100%
• Latest funding: $432.4M, October 2019
• Founded year: 2009
• Headcount: 5001-10000
• LinkedIn: sbigeneral

SBI General Insurance Company Limited, established in 2009 and headquartered in Mumbai, Maharashtra, is a private equity-backed general insurance provider in India. The company offers a wide array of insurance products, including health, motor, home, and travel insurance, catering to both individual consumers and businesses. With a workforce of over 7,000 employees, SBI General aims to provide essential financial protection against various risks. The company has built a strong network of branches and partners, enhancing accessibility to its insurance solutions. SBI General has also received significant funding, with the last reported amount being approximately ₹432 crore in October 2019. This financial backing supports its growth and operational capabilities in the competitive insurance market.

Casualty Insurance Underwriting Insights: Key Companies

Company	Headquarter	Size	Founded	Ownership
State Farm	Bloomington, Illinois, United States (USA)	10001+	1922	Private
Farmers Insurance	Los Angeles, California, United States (USA)	10001+	1928	Private
American Family Insurance	Madison, Wisconsin, United States (USA)	10001+	1927	Private
TATA AIG General Insurance Company Limited	Mumbai, Maharashtra, India	1001-5000	2000	Private
HDFC ERGO General Insurance	Mumbai, Maharashtra, India	1001-5000	2008	Private
Axa Xl	Hamilton, Pembroke, Bermuda	10001+	1986	Private
Berkshire Hathaway Specialty Insurance	Boston, Massachusetts, United States (USA)	1001-5000	2013	Corporate
Sompo	Bermuda	5001-10000	2001	Corporate
Huk-coburg	Coburg, Bavaria, Germany	10001+	1933	Private
Liberty Mutual Insurance	Boston, Massachusetts, United States (USA)	10001+	1912	Private
Amica Insurance	Lincoln, Rhode Island, United States (USA)	1001-5000	1907	Corporate
GEICO Local Office	Chevy Chase, Maryland, United States (USA)	201-500	1936	Private Equity
American National	Galveston, Texas, United States (USA)	1001-5000	1905	Corporate
Amwins	Charlotte, North Carolina, United States (USA)	5001-10000	1998	Venture Capital
Arch Insurance Group Inc.	Jersey City, New Jersey, United States (USA)	1001-5000	2001	Private
Sompo Seguros	Sao Paulo, Sao Paulo, Brazil	501-1000	1943	Corporate
Auto-Owners Insurance	Lansing, Michigan, United States (USA)	5001-10000	1916	Private
HDI Global SE	Hanover, Lower Saxony, Germany	5001-10000	1903	Corporate
Federated Insurance	Owatonna, Minnesota, United States (USA)	1001-5000	1904	Private
Tokio Marine HCC	Los Angeles, California, United States (USA)	501-1000	2004	Private
SBI General Insurance	Mumbai, Maharashtra, India	5001-10000	2009	Private Equity

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