stockrowWhat it does
Kinsale Capital Group is a U.S. property and casualty insurer focused exclusively on the excess and surplus lines market, often called E&S. It writes coverage for risks that can be unusual or difficult to place with standard insurers. These include newly established companies or industries, high-risk operations, businesses in places with frequent litigation and companies with poor loss histories.
Its core clients are small and medium-sized accounts. Its commercial products cover risks ranging from property and construction to casualty, health care and entertainment. It also writes personal insurance, including homeowners coverage. Kinsale sells primarily through independent insurance brokers, which bring insurance applications from prospective customers to its underwriters.
E&S insurers have flexibility in the rates they charge and the policy forms they use. Kinsale underwrites each account individually, setting prices, coverage terms and exclusions for the risk. It keeps underwriting authority in-house rather than giving it to brokers or other outside parties. It also handles claims internally, using its underwriters and technology systems to help investigate them.
Founded in 2009, Kinsale is led by chairman, president and chief executive officer Michael P. Kehoe. The company has one reportable insurance segment and sells policies across the U.S., the District of Columbia, Puerto Rico and the U.S. Virgin Islands.
How it makes money
Kinsale earns premiums by taking on insurance risks. It recognizes those premiums over the life of each policy, rather than all at once when a policy is written. Customers may renew, and renewal volumes are one factor affecting the premiums Kinsale writes. It also charges flat policy fees, which it recognizes when the related premium is written.
The company prices and structures each account individually. Gross written premiums are the amounts received or receivable for policies before deductions such as reinsurance and acquisition costs. Net earned premiums exclude the portion ceded to reinsurers, which take on some of Kinsale’s exposure in exchange for premium. Kinsale also earns investment income on cash and invested assets, primarily fixed-maturity securities.
The Excess and Surplus Lines Insurance segment is Kinsale’s only reportable segment. In 2025, its gross written premiums included both casualty and property coverage, with commercial lines accounting for most premiums. Kinsale’s product divisions include commercial property, excess casualty, general casualty and small business coverage.
FY2025 segment revenue was $1.9 billion; Q3 2026 gross written premium declined.
Profit depends in part on whether premiums and fees cover claims and expenses. Kinsale’s combined ratio adds its loss and expense ratios. An underwriting profit occurs when premiums and fees exceed losses and underwriting expenses. The company also records investment gains or losses and changes in the fair value of equity securities.
| Segment | Revenue, FY2025 | Share | Change on the year |
|---|---|---|---|
| Excess and Surplus Lines Segment | $1.9 billion | 100.0% | 18.0% |
Customers and how it sells
Kinsale’s customers include businesses seeking coverage for risks that standard insurers may not accept, along with personal insurance customers seeking homeowners coverage. The company focuses on small and medium-sized accounts and offers a range of commercial property and casualty policies. Its underwriters specialize in individual lines of business and assess each risk separately.
Independent brokers are the main distribution channel. Kinsale selects brokers based on their experience, knowledge and business plans, and its underwriters visit broker offices to market and discuss coverage. The company also distributes policies through its wholly owned broker, Aspera, primarily for manufactured housing risks within its personal insurance division.
For the year ended December 31, 2025, RSG Specialty, LLC produced 18.8% of gross written premiums, AmWINS Brokerage produced 17.1%, and CRC Commercial Solutions produced 11.7%. Kinsale does not give independent brokers underwriting or claims authority. Brokers consider price, service and carrier expertise when placing business, as well as commissions.
Kinsale sells policies across the U.S., the District of Columbia, Puerto Rico and the U.S. Virgin Islands. The company appointed new wholesale brokers to the Kinsale platform and new retail brokers to Aspera during Q3 2026.
| Segment | Revenue, FY2025 | Share | Change on the year |
|---|---|---|---|
| Excess and Surplus Lines Segment | $1.9 billion | 100.0% | 18.0% |
Suppliers and costs
Kinsale buys reinsurance to limit exposure to large losses. Reinsurers assume some of its risk in return for part of the premium. The company uses quota-share treaties, under which a reinsurer takes a specified share of losses and premiums, and excess-of-loss treaties, which cover losses above an agreed amount. It renews its treaties annually, considering factors including loss trends, capital, risk appetite and reinsurance cost and availability.
Claims and the costs of adjusting them are central expenses. Kinsale also pays broker commissions and incurs employee, technology, telecommunications, legal and auditing costs.
Kinsale develops and improves key applications supporting its insurance business in-house. Its digital systems process broker submissions and maintain electronic account files used by underwriting, servicing and claims staff. The company manages claims internally but may use local counsel and independent adjusters when needed.
- Revenue$1.9B
- Cost of revenue−$1.2B
- Operating income$644.9M
Competitive position
Kinsale competes with domestic and international insurers in the E&S market. Its primary competitors include American International Group, Berkshire Hathaway, Chubb, Fairfax Financial Holdings, Markel, RLI and W. R. Berkley, as well as Lloyds of London. Competition involves price and policy terms, service, claims payment speed, reputation and financial strength ratings. Some competing insurers have greater financial, marketing and management resources and experience.
The company’s underwriters assess risks individually, while its proprietary platform supports quoting, policy processing, data analysis and claims handling. Kinsale says its systems allow underwriters to respond quickly to many submissions.
Our reading: Kinsale’s in-house underwriting and claims control provide a differentiated operating approach, although competitors can also employ insurance expertise. Our reading: Its technology and accumulated data support a potentially durable efficiency advantage, but the evidence does not establish how far competitors’ systems lag. Our reading: Its expense management supports a cost-based advantage, though pricing pressure can still make business difficult to win.
Competition in commercial property weighed on growth in Q3 2026. Competition also increased for homeowners insurance in California and Florida.
| Competitor | Where they compete | Threat (our reading) |
|---|---|---|
| American International Group, Inc. | Excess and surplus lines insurance | Medium |
| Berkshire Hathaway Inc. | Excess and surplus lines insurance | Medium |
| Chubb Limited | Excess and surplus lines insurance | Medium |
| Fairfax Financial Holdings Limited | Excess and surplus lines insurance | Medium |
| Markel Group Inc. | Excess and surplus lines insurance | Medium |
| RLI Corp. | Excess and surplus lines insurance | Medium |
| W. R. Berkley Corporation | Excess and surplus lines insurance | Medium |
Growth opportunities
Kinsale aims to expand its presence in E&S while maintaining underwriting profitability through market cycles. Its approach includes writing risks that require more extensive underwriting, developing broker relationships and using technology to quote and process policies.
Gross written premiums increased for the year ended December 31, 2025. Commercial Property Division premiums decreased relative to the prior year, as rates declined and competition increased, including from standard carriers. Excluding that division, gross written premiums grew primarily because of broker submissions across most divisions.
Kinsale is investing in analytics and artificial intelligence tools to support existing workflows, research and routine processes. It continues to evaluate integrating AI-enabled functions into its technology platform and data warehouse. Its strategy also includes using its systems to handle more business while maintaining a low expense ratio.
In Q3 2026, gross written premium declined, while submissions, quotes and bind orders grew. The account mix had shifted slightly from larger to smaller accounts amid competition. Its growth initiatives include new and enhanced products, appointing brokers, marketing and customer service. Competition in commercial property continued to weigh on the quarter’s growth rate.
- $653.5MFY2021
- $838.8MFY2022
- $1.2BFY2023
- $1.6BFY2024
- $1.9BFY2025
Structural risks
- Inadequate reserves: Kinsale’s loss reserves may not cover actual losses. Claims inflation, litigation trends, changes in liability and claim development can affect the ultimate cost of claims, including those incurred but not yet reported.
- Catastrophes: Hurricanes are Kinsale’s main catastrophe risk. Its models are uncertain and may not accurately capture event frequency, damage or the effects of a catastrophe on claim payments. Actual losses can differ materially from estimates.
- Competition and pricing: Increased competition can affect Kinsale’s ability to price policies at rates adequate for the risks, retain customers or write new business on favorable terms. Competition in commercial property weighed on Q3 2026 growth.
- Investments and liquidity: The investment portfolio is exposed to market risks. As a holding company, Kinsale depends on dividends or other permitted payments from its insurance subsidiary for cash to pay its own dividends.
- Ratings and regulation: A financial strength rating downgrade could restrict Kinsale’s ability to write business or make reinsurance more costly or less available. State insurance regulators have broad authority over matters including capital, reserves, investments and licensing.
Bottom line
Our reading
Kinsale is a specialist insurer whose business rests on pricing hard-to-place risks, retaining control of underwriting and claims, and using its own systems to serve brokers. Its expense management and underwriting result show how that model has operated, while the more recent premium decline illustrates its exposure to competitive pricing. Reserve estimates, catastrophe losses and investment results remain important to its financial performance.