Arch Capital Group Ltd., together with its subsidiaries, provides insurance, reinsurance, and mortgage insurance products worldwide. The company's Insurance segment offers primary and excess casualty coverages; loss sensitive primary casualty insurance programs; directors' and officers' liability, errors and omissions liability, employment practices and fiduciary liability, crime, professional indemnity, and other financial related coverages; medical professional and general liability insurance coverages; and workers' compensation and umbrella liability, as well as commercial automobile and inland marine products. It also provides property, energy, marine, and aviation insurance; travel insurance; accident, disability, and medical plan insurance coverages; captive insurance programs; employer's liability; contract and commercial surety coverages; and collateral protection, debt cancellation, and service contract reimbursement products. This segment markets its products through a group of licensed independent retail and wholesale brokers. Its Reinsurance segment provides casualty reinsurance for third party liability exposures; marine and aviation; motor reinsurance, whole account multi-line treaties, cyber, trade credit, surety, accident and health, workers' compensation catastrophe, agriculture, trade credit, and political risk products; reinsurance protection for catastrophic losses, and personal lines and commercial property exposures; life reinsurance; casualty clash; and risk management solutions. This segment markets its reinsurance products through brokers. The company's Mortgage segment offers direct mortgage insurance and mortgage reinsurance. The company was founded in 1995 and is based in Pembroke, Bermuda.

Everest Group, Ltd., through its subsidiaries, provides reinsurance and insurance products in the United States, Europe, and internationally. The company operates through two segment, Insurance and Reinsurance. The Reinsurance segment writes property and casualty reinsurance; and specialty lines of business through reinsurance brokers, as well as directly with ceding companies in the United States, Bermuda, Ireland, Canada, Singapore, Switzerland, and the United Kingdom. The Insurance Operations segment writes property and casualty insurance directly, as well as through brokers, surplus lines, and general agents in the United States, Bermuda, Canada, Europe, South America, Singapore, France, Germany, Spain, Canada, Chile, the United Kingdom, Ireland, and the Netherlands. The company also provides treaty and facultative reinsurance products; admitted and non-admitted insurance products; and accident and health, specialty underwriters, eversports and entertainment, and surety and credit, marine and aviation, as well as structured and property hybrid solutions. In addition, it offers commercial property and casualty insurance products through wholesale and retail brokers, surplus lines brokers, and program administrators. The company was formerly known as Everest Re Group, Ltd. and changed its name to Everest Group, Ltd. in July 2023.Everest Group, Ltd., was founded in 1973 and is headquartered in Hamilton, Bermuda.

RenaissanceRe Holdings Ltd., together with its subsidiaries, provides reinsurance and insurance products in the United States and internationally. The company operates through Property, and Casualty and Specialty segments. The Property segment writes property catastrophe excess of loss reinsurance and excess of loss reinsurance to insure insurance and reinsurance companies against natural and man-made catastrophes, including hurricanes, earthquakes, typhoons, and tsunamis, as well as winter storms, freezes, floods, fires, windstorms, tornadoes, explosions, and acts of terrorism; and other property class of products, such as proportional reinsurance, property per risk, property reinsurance, binding facilities, and regional U.S. multi-line reinsurance. The Casualty and Specialty segment writes various classes of products, such as directors and officers, medical malpractice, and professional indemnity; automobile and employer's liability, casualty clash, umbrella or excess casualty, workers' compensation, and general liability; financial and mortgage guaranty, political risk, surety, and trade credit; and accident and health, agriculture, aviation, cyber, energy, marine, satellite, and terrorism. It distributes products and services primarily through intermediaries. The company invests in and manages funds. RenaissanceRe Holdings Ltd. was founded in 1993 and is headquartered in Pembroke, Bermuda.

Kinsale Capital Group, Inc., a specialty insurance company, engages in the provision of property and casualty insurance products in the United States. The company's commercial lines offerings include commercial property, small business casualty and property, excess and general casualty, construction, allied health, life sciences, entertainment, energy, environmental, excess professional, health care, public entity, commercial auto, inland marine, aviation, ocean marine, product recall, and railroad, as well as product, professional, and management liability insurance. It markets and sells its insurance products in all 50 states, the District of Columbia, the Commonwealth of Puerto Rico, and the U.S. Virgin Islands primarily through a network of independent insurance brokers. The company was founded in 2009 and is headquartered in Richmond, Virginia.

The Hanover Insurance Group, Inc., through its subsidiaries, provides various property and casualty insurance products and services in the United States. The company operates through four segments: Core Commercial, Specialty, Personal Lines, and Other. The Commercial Lines segment offers commercial multiple peril, commercial automobile, workers' compensation, and other commercial lines coverage. The Specialty segment provides professional and executive Lines, marine, and surety and other, as well as specialty property and casualty, such as program business, specialty industrial business, excess and surplus business, and specialty general liability coverage. The Personal Lines segment offers personal automobile and homeowner's coverages, as well as other personal coverages, such as personal umbrella, inland marine, fire, personal watercraft, personal cyber, and other miscellaneous coverages. The Other segment markets investment advisory services to institutions, insurance companies, pension funds, and other organizations. The Hanover Insurance Group, Inc. markets its products and services through independent agents and brokers. The company was formerly known as Allmerica Financial Corp. and changed its name to The Hanover Insurance Group, Inc. in December 2005. The Hanover Insurance Group, Inc. was founded in 1852 and is headquartered in Worcester, Massachusetts.

Palomar Holdings, Inc., a specialty insurance company, provides property and casualty insurance to residential and businesses in the United States. The company offers personal and commercial specialty property insurance products, including residential and commercial earthquake, fronting, commercial all risk, specialty homeowners, inland marine, Hawaii hurricane, and residential flood, as well as other products, such as assumed reinsurance. It markets and distributes its products through retail agents, wholesale brokers, program administrators, and carrier partnerships. The company was formerly known as GC Palomar Holdings and changed its name to Palomar Holdings, Inc. The company was incorporated in 2013 and is headquartered in La Jolla, California.

Donegal Group Inc., an insurance holding company, provides property and casualty insurance to businesses and individuals. It operates through three segments: Investment Function, Personal Lines of Insurance, and Commercial Lines of Insurance. The company offers private passenger automobile policies that provide protection against liability for bodily injury and property damage arising from automobile accidents, as well as protection against loss from damage to automobiles; and homeowners policies, which provide coverage for damage to residences and their contents from a range of perils, including fire, lightning, windstorm, and theft, as well as liability of the insured arising from injury to other persons or their property. Donegal Group Inc. also offers commercial automobile policies that provide protection against liability for bodily injury and property damage arising from automobile accidents and protection against loss from damage to automobiles owned by the insured; commercial multi-peril policies that provide protection to businesses against combining liability and physical damage coverages; and workers' compensation policies, which provide benefits to employees for injuries sustained during employment. The company markets its insurance products primarily to Mid-Atlantic, Midwestern, New England, Southern, and Southwestern regions through independent insurance agencies. Donegal Group Inc. was incorporated in 1986 and is based in Marietta, Pennsylvania. Donegal Group Inc. operates as a subsidiary of Donegal Mutual Insurance Company.

Argo Group International Holdings, Inc. underwrites specialty insurance and reinsurance products in the property and casualty markets. The company operates in two segments, U.S. Operations and International Operations. It offers primary and excess specialty casualty, general liability, commercial multi-peril, and workers compensation, as well as product, environmental, and auto liability insurance products; management liability, transaction liability, and errors and omissions liability insurance; primary and excess property, inland marine, and auto physical damage insurance; and surety, animal mortality, and ocean marine insurance products. The company also provides directors and officers liability, errors and omissions liability, and employment practices liability insurance; international casualty and motor treaties insurance; professional indemnity and medical malpractice insurance; direct and facultative excess insurance, North American and international binders, and residential collateral protection for lending institutions; and personal accident, aviation, cargo, yachts, and onshore and offshore marine insurance products. It markets its products through wholesale and retail agents, managing general agents, brokers, and third-party intermediaries. The company was founded in 1948 and is based in New York, New York. Argo Group International Holdings, Inc. operates as a subsidiary of BNRE Triangle Acquisition Inc.