About Nautilus Insurance Group
Since 1985, we have specialized in providing solutions for Excess and Surplus Lines insurance coverage.
About Nautilus
Nautilus delivers smart underwriting solutions and exceptional customer experiences to appointed General Agents in all 50 states and D.C. We focus on providing solutions to benefit our agents through enhanced product offerings, underwriting expertise, technology, education, and service that promote ease and convenience, making us a premier partner in the industry.
Coverage placed by Nautilus Insurance Group is provided by Nautilus Insurance Company and Great Divide Insurance Company, both W. R. Berkley Corporation members with A.M. Best (Superior) A+ XV ratings.
Nautilus Insurance Company
Nautilus Insurance Company was formed in 1985 and operates as an eligible Surplus Lines insurer in all states except Arizona, where the company is domiciled and serves policyholders as a licensed, admitted insurance carrier. NAIC #17370.
Great Divide Insurance Company
Great Divide Insurance Company is domiciled in North Dakota and licensed as an admitted insurer in 49 states and the District of Columbia. In Arizona, Great Divide operates as an eligible Surplus Lines insurer. NAIC #25224.
Our Mission, Vision, and Cultural Pillars
Our Senior Leadership Team
Our experienced leaders understand the intricacies of the business and possess the creativity, strategic thinking, and strong leadership skills that make Nautilus the thriving company it is today.
Excess and Surplus Market
The Excess and Surplus Lines industry provides a market for insurance coverage for hard-to-place, unusual, and high risks not typically written by the standard insurance markets. This enables businesses and consumers to get insurance they can’t get with the standard market. Because regulations and laws limit the ability to market directly to consumers, Surplus Lines insurance is sold through licensed Surplus Lines producers. While Surplus Lines insurers are subject to regulation, they cannot participate in state insurance guaranty funds.
The Power ofBerkley

Nautilus is one of approximately 60 (re)insurance businesses that comprise the Berkley brand. Berkley is one of America’s largest commercial lines property casualty providers, operating worldwide. Each Berkley business offers deep expertise within an industry, product, region, or distribution type.