Aflac Incorporated, through its subsidiaries, provides supplemental health and life insurance products. The company operates through Aflac Japan and Aflac U.S. segments. The Aflac Japan segment offers cancer, medical, nursing care, work leave, GIFT, and whole and term life insurance products, as well as WAYS and child endowment plans under saving type insurance products in Japan. The Aflac U.S. segment provides cancer, accident, short-term disability, critical illness, hospital indemnity, dental, vision, long-term care and disability, and term and whole life insurance products in the United States. It sells its products through sales associates, brokers, independent corporate agencies, individual agencies, and affiliated corporate agencies. Aflac Incorporated was founded in 1955 and is headquartered in Columbus, Georgia.

The Travelers Companies, Inc., through its subsidiaries, provides a range of commercial and personal property, and casualty insurance products and services to businesses, government units, associations, and individuals in the United States and internationally. The company operates through three segments: Business Insurance, Bond & Specialty Insurance, and Personal Insurance. The Business Insurance segment offers workers' compensation, commercial automobile and property, general liability, commercial multi-peril, employers' liability, public and product liability, professional indemnity, marine, aviation, onshore and offshore energy, construction, terrorism, personal accident, and kidnap and ransom insurance products. This segment operates through select accounts, which serve small businesses; commercial accounts that serve mid-sized businesses; national accounts, which serve large companies; and national property and other that serve large and mid-sized customers, commercial trucking industry, and agricultural businesses, as well as markets and distributes its products through brokers, wholesale agents, and program managers. The Bond & Specialty Insurance segment provides surety, fidelity, management and professional liability, and other property and casualty coverages and related risk management services through independent agencies and brokers. The Personal Insurance segment offers property and casualty insurance covering personal risks, primarily automobile and homeowners' insurance to individuals through independent agencies and brokers. The Travelers Companies, Inc. was founded in 1853 and is based in New York, New York.

The Allstate Corporation, together with its subsidiaries, provides property and casualty, and other insurance products in the United States and Canada. It operates in five segments: Allstate Protection; Protection Services; Allstate Health and Benefits; Run-off Property-Liability; and Corporate and Other segments. The Allstate Protection segment offers private passenger auto and homeowners insurance; other personal lines products; and commercial lines products through agents, contact centers, and online. The Protection Services segment provides consumer product protection; protection and insurance products, including vehicle service contracts, guaranteed asset protection, road hazard tire and wheel, and paintless dent repair protection; and roadside assistance, device and mobile data collection services, and analytic solutions using automotive telematics information, as well as identity theft protection and remediation services. This segment also offers its products under various brands, including Allstate Protection Plans, Allstate Dealer Services, Allstate Roadside, Arity, Avail, and Allstate Identity Protection. The Allstate Health and Benefits segment provides life, accident, critical illness, short-term disability, and other health insurance products; stop-loss and fully insured group health products to employers; and short-term medical and medicare supplement insurance to individuals. The Run-off Property-Liability segment offers property and casualty insurance coverage that primarily relates to policies written during the 1960s through the mid-1980s. The Corporate and Other segment provides debt services, as well as non-insurance operations. It sells its products through agents, independent agents, call and contact centers, retailers, direct to consumer, wholesale partners, and affinity groups, as well as through online and mobile applications. The Allstate Corporation was founded in 1931 and is headquartered in Northbrook, Illinois.

American International Group, Inc. offers insurance products for commercial, institutional, and individual customers in North America and internationally. It operates through three segments: General Insurance, Life and Retirement, and Other Operations. The General Insurance segment provides commercial and industrial property insurance, including business interruption and package insurance that cover exposure to made and natural disasters; general liability, environmental, commercial automobile liability, workers' compensation, excess casualty, and crisis management insurance products; and professional liability insurance. This segment offers marine, energy-related property insurance, aviation, political risk, trade credit, trade finance, and portfolio solutions, as well as operates reinsurance business; voluntary and sponsor-paid personal accident, and supplemental health products; and personal auto and personal property insurance. Its Life and Retirement segment offers individual retirement products, including variable, fixed index, and fixed annuities, as well as retail mutual funds; group retirement products comprising record-keeping, plan administrative and compliance services, financial planning, and advisory solutions; life insurance, including term and universal life insurance; and institutional markets products, which includes wrap products, structured settlement, pension risk transfer annuities, corporate and bank-owned life insurance, high net worth, and guaranteed investment contract products. It distributes its products through a network of brokers, agents, advisors, banks, and other distributors. The company was founded in 1919 and is headquartered in New York, New York.

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.

Primerica, Inc., together with its subsidiaries, provides financial products and services to middle-income households in the United States and Canada. The company operates in four segments: Term Life Insurance; Investment and Savings Products; Senior Health; and Corporate and Other Distributed Products. The Term Life Insurance segment underwrites individual term life insurance products. The Investment and Savings Products segment provides mutual funds and various retirement plans, managed investments, variable and fixed annuities, and fixed indexed annuities. The Senior Health segment offers segregated funds; and medicare advantage and supplement plans. The Corporate and Other Distributed Products segment provides mortgage loans; prepaid legal services that assist subscribers with legal matters, such as drafting wills, living wills and powers of attorney, trial defense, and motor vehicle-related matters; ID theft defense services; auto and homeowners' insurance; home automation solutions; and insurance products, including supplemental and accidental death, and disability insurance. It distributes and sells its products through licensed sales representatives. Primerica, Inc. was founded in 1927 and is headquartered in Duluth, Georgia.

Selective Insurance Group, Inc., together with its subsidiaries, provides insurance products and services in the United States. The company operates through four segments: Standard Commercial Lines, Standard Personal Lines, E&S Lines, and Investments. It offers casualty insurance products that covers the financial consequences of employee injuries in the course of employment and bodily injury and/or property damage to a third party; property insurance products, which covers the accidental loss of an insured's real property, personal property, and/or earnings due to the property's loss; and flood insurance products. The company also invests in fixed income investments and commercial mortgage loans, as well as equity securities, short-term investments, and alternative investments, and other investments. It offers its insurance products and services to businesses, non-profit organizations, local government agencies, and individuals through independent retail agents and wholesale general agents. The company was founded in 1926 and is headquartered in Branchville, New Jersey.

ProAssurance Corporation, through its subsidiaries, provides property and casualty insurance, and reinsurance products in the United States. The company operates through Specialty Property and Casualty, Workers' Compensation Insurance, and Segregated Portfolio Cell Reinsurance segments. It offers professional liability insurance to healthcare providers and institutions, and attorneys and their firms; medical technology liability insurance to medical technology and life sciences companies; and custom alternative risk solutions, including assumed reinsurance, loss portfolio transfers, and captive cell programs for healthcare professional liability insureds. The company also provides workers' compensation insurance products, such as guaranteed cost policies, policyholder dividend policies, retrospectively rated policies, and deductible policies, as well as alternative market solutions that include program design, fronting, claims administration, risk management, SPC rental, asset management, and SPC management services for individual companies, agencies, groups, and associations. The company also participates in Syndicate 1729 at Lloyd's of London for underwriting. It markets its products through independent agencies and brokers, as well as an internal business development team. The company was founded in 1976 and is headquartered in Birmingham, Alabama.