Ategrity Specialty Insurance Company

Ategrity Specialty Insurance Company is a Delaware-domiciled excess and surplus (E&S) lines carrier founded in 2018 and headquartered in Scottsdale, Arizona. The company was established by Mike Miller, former President and COO of Scottsdale Insurance Company, with backing from Zimmer Financial Services Group, which has invested over USD 335 million since inception. In June 2025, Ategrity completed a USD 113.3 million IPO on the New York Stock Exchange under the ticker ASIC.

Ategrity focuses exclusively on commercial E&S property and casualty insurance for small and medium-sized businesses, distributing solely through wholesale brokers and appointed general agents. The company underwrites across selected industry verticals including retail, real estate, hospitality, and construction. It has built a proprietary technology platform combining data analytics with automated underwriting workflows, enabling distribution partners to generate bindable quotes in as little as 90 seconds.

For full year 2025, Ategrity generated USD 581.5 million in gross written premiums (up 33.1% year-over-year) and achieved a combined ratio of 88.2%, reflecting strong underwriting discipline and operational leverage from its technology platform.