Nautilus Logo

Nautilus is a leading U.S. Commercial Excess and Surplus (E&S) Lines insurance provider, specializing in the high-volume, small-premium market.

We Are Excess And Surplus (E&S) Specialists

As a leading Excess and Surplus Lines market, Nautilus Insurance Group offers commercial property and casualty insurance solutions to appointed wholesale general agents countrywide. Our comprehensive insurance coverages are provided by Nautilus Insurance Company or Great Divide Insurance Company and available in all 50 states.

Why Nautilus

We work in partnership with a select group of general agents to make hard-to-insure risks easy to write.

Specialty E&S Coverages

Nautilus General Liability Coverage

General Liability

General Liability insurance can protect against claims for bodily injury, property damage, and personal injury.

Nautilus Property Coverage


Commercial Property insurance can protect a business’ physical property from losses such as fire, storms, and theft, as well as other covered losses.

Nautilus Commercial Excess Coverage

Commercial Excess

Commercial Excess can give businesses added liability protection beyond the limits of their primary coverage.

Nautilus Light Brokerage Coverage

Light Brokerage

Light Brokerage can provide solutions for tough-to-place risks that are not large or complex enough to meet traditional brokerage market premiums.

Nautilus Inland Marine Coverage

Inland Marine

Inland Marine insurance can protect assets (material, products, and equipment) that move or are transportable over land.

Work For Nautilus

Work For Nautilus

Join our growing team of engaged professionals.

Products We Offer

Products We Offer

We provide our agent partners a wide array of products.

Connect With Us On LinkedIn

Connect With Us

Follow Nautilus Insurance Group to learn more about our company and our culture.

Top Companies To Work For in Arizona

Nautilus Insurance Group has earned the distinction of being named a 2023 Top Companies to Work for in Arizona.

AM Best A+ Superior Financial Strength Rating

Nautilus Insurance Group as a W R Berkley member insurance company is rated A+ (Superior), Financial Size Category XV by A.M. Best Company.


Nautilus Insurance Group is a proud member of the Wholesale & Specialty Insurance Association.