Nautilus Insurance Group
Nautilus Insurance Group is a leading U.S. Excess and Surplus Lines carrier providing commercial property and casualty coverage for small- to medium-sized risks. It distributes exclusively through wholesale general agents and digital platforms, operating via two licensed carriers.
- Company typePrivate
- Founded1985
- HeadquartersScottsdale, United States
- Headcount251–500
- GTM typeB2B
- OfferingServices
What Nautilus Insurance Group does
Nautilus Insurance Group is a U.S. Excess and Surplus (E&S) Lines commercial property and casualty insurer founded in 1985 and headquartered in Scottsdale, Arizona. The company operates as a wholly-owned subsidiary of W. R. Berkley Corporation (NYSE: WRB), a Fortune 500 diversified insurance holding company and S&P 500 component. Nautilus writes through two carrier entities — Nautilus Insurance Company (domiciled in Arizona, NAIC #17370) and Great Divide Insurance Company (domiciled in North Dakota, NAIC #25224) — providing coverage in all 50 states and D.C. The company specializes in the high-volume, small-premium segment, serving small- to medium-sized commercial risks with low- to moderate-hazard profiles that fall outside standard insurance markets.
Nautilus offers five core E&S products: General Liability, Commercial Property, Commercial Excess, Light Brokerage, and Inland Marine. The Commercial Excess product supports Lead and Layered Excess Liability over General Liability, Auto Liability, Liquor Liability, Employee Benefits Liability, and Employer's Liability. Technology assets include the Nautilus eGuide (an underwriting reference tool for agent partners), Nautilus University (an industry education platform with hundreds of training assets), and a Nautilus Agent Portal for policy management, claims submission, loss run reports, and payment processing. No AI/ML capabilities, public APIs, or proprietary AI features are disclosed in the available data.
Nautilus operates exclusively through wholesale distribution, partnering with appointed wholesale general agents and Managing General Agents (MGAs) that have substantial underwriting authority. In June 2022, the company expanded digital distribution via a partnership with Pathpoint, a digital wholesale broker platform that places small commercial E&S business. Revenue is generated through commercial insurance premiums underwritten via these channel partners, with annual billing and risk-based pricing. Nautilus does not publish standalone financials; A+ (Superior) A.M. Best and AA- (Very Strong) S&P financial strength ratings reflect the Berkley member-insurer franchise. Recent leadership investments include a new CFO (October 2023), Chief Underwriting Officer (January 2024), and VP of Business Solutions (January 2026) to support data-driven growth and operational modernization.
Nautilus Insurance Group firmographics
Firmographics- Name
- Nautilus Insurance Group
- Legal name
- Nautilus Insurance Group
- Website
- https://nautilusinsgroup.com
- Company type
- Private
- Founded year
- 1985
- Operating status
- Operating
- Headcount range
- 251–500 employees
- Short description
- Nautilus Insurance Group is a leading U.S. Excess and Surplus Lines carrier providing commercial property and casualty coverage for small- to medium-sized risks. It distributes exclusively through wholesale general agents and digital platforms, operating via two licensed carriers.
- Ownership category
- akta.pro rank
Nautilus Insurance Group industry classification
Industry- Product category
- Excess and Surplus Lines Commercial Property and Casualty Insurance
- NAICS
- Direct Property and Casualty Insurance Carriers (524126)
- SIC
- Fire, Marine & Casualty Insurance (6331)
- akta.pro primary industry
- Excess Casualty (Lead/Umbrella/XS) (FSAJAGAA)
Keywords
Where Nautilus Insurance Group is headquartered
LocationHeadquarters
- HQ city
- Scottsdale
- HQ country
- United States
- HQ region
- North America
Offices1 record
Markets served
Nautilus Insurance Group business model
Business model- GTM type
- B2B
- Offering type
- Services
- Cost components
- Personnel, Operations, Technology or R&D, Marketing or Sales, Infrastructure
Revenue model
- Commercial Insurance Premiums: Nautilus Insurance Group generates revenue through commercial insurance premiums collected from policyholders. Coverage is provided by Nautilus Insurance Company and Great Divide Insurance Company for Excess and Surplus Lines products including General Liability, Commercial Property, Commercial Excess, Light Brokerage, and Inland Marine. The company specializes in the high-volume, small-premium market.
Pricing tiers
| Model | Billing | Price |
|---|---|---|
| Other | Annual | Quote-based commercial insurance pricing |
Go-to-market motion1 record
Distribution channels2 records
Marketing channels3 records
Nautilus Insurance Group product offering
Product offeringCore offering
Nautilus Insurance Group underwrites and provides Excess and Surplus (E&S) Lines commercial property and casualty insurance coverage through appointed wholesale general agents and Managing General Agents. Its product suite includes General Liability, Commercial Property, Commercial Excess, Light Brokerage, and Inland Marine, addressing small- to medium-sized commercial risks that cannot be placed in standard insurance markets and that are written monoline or packaged. Coverage is available in all 50 states and D.C., backed by Nautilus Insurance Company and Great Divide Insurance Company (both W. R. Berkley Corporation subsidiaries).
Product overview
Nautilus Insurance Group offers a unified suite of Excess and Surplus (E&S) Lines insurance products designed exclusively for the wholesale distribution market. The product portfolio consists of five core offerings: General Liability, Commercial Property, Commercial Excess, Light Brokerage, and Inland Marine. These products are specifically designed for small- to moderate-sized commercial risks with low- to moderate-susceptibility to loss, available nationwide through appointed wholesale general agents. The company provides coverage through Nautilus Insurance Company and Great Divide Insurance Company, both members of W. R. Berkley Corporation.
Differentiator
Problem solved
Functional benefit
Products and services
- General Liability General Liability insurance protects against claims for bodily injury, property damage, and personal/advertising injury. Nautilus specializes in insuring low- to moderate-hazard commercial risks, written monoline or packaged with other lines. Targeted at appointed wholesale general agents and the small-to-medium commercial insureds they serve.
- Commercial Property Commercial Property insurance protects a business's physical property from losses including fire, storms, theft, and other covered losses. Nautilus writes a wide range of low- to moderate-hazard Property classes and provides wind and hail coverage in catastrophe-exposed areas, available through wholesale general agents nationwide.
- Commercial Excess Commercial Excess insurance provides businesses with added liability protection beyond the limits of their primary coverage. Nautilus offers Lead and Layered Excess Liability over General Liability, Auto Liability, Liquor Liability, Employee Benefits Liability, and Employer's Liability, distributed exclusively through appointed wholesale general agents.
- Light Brokerage Light Brokerage provides coverage for tough-to-place risks that are not large or complex enough to meet traditional brokerage market premiums. It is a submit-only product where each risk is underwritten in-house by experienced Nautilus staff. Targeted at wholesale general agents placing difficult but moderate-sized risks.
- Inland Marine Inland Marine coverage protects assets (materials, products, equipment) that move or are transportable over land, including assets temporarily stored by a third party. The solution complements Nautilus's Property and General Liability offerings for commercial insureds placed through wholesale distribution.
Quantifiable outcome
- Highly successful underwriting company dedicated to delivering superior service since 1985
Companies that use Nautilus Insurance Group
Customer profileSegments2 records
Ideal customer profiles3 records
Nautilus Insurance Group technology and API
TechnologyTechnology focussed No
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Feature3 records
Nautilus Insurance Group partnerships and signals
Strategic signalPartnerships
One partnership is on record.
- PathpointcorePathpoint is a digital wholesale broker platform for placing small commercial E&S business. The partnership enables Pathpoint to offer Nautilus General Liability and Excess Casualty solutions to retail agents on their platform, covering core E&S verticals including Contractors and LRO (Lessor's Risk Only). Nautilus gains enhanced digital distribution footprint reaching thousands of insurance agents.
Scale indicators5 records
Recent moves6 records
Expansion highlights5 records
Nautilus Insurance Group competitors and assessment
Company assessmentBroad incumbents
- Markel Group: Markel is a large specialty insurer with a dedicated E&S / wholesale division writing commercial liability, property, and excess on hard-to-place risks. Highly comparable to Nautilus's E&S product suite and small-to-medium commercial focus, though Markel operates across many additional lines.
- Crum & Forster: Crum & Forster is a national P&C insurer with a substantial E&S and specialty division writing GL, property, and excess casualty through wholesale partners. Comparable products, channels, and small-to-medium commercial focus, though part of a larger Fairfax portfolio.
- Zurich North America: Zurich North America is a large commercial P&C insurer with a specialty E&S and surplus lines capability writing GL, property, and excess through wholesale and direct channels. Comparable lines, though Zurich is far broader and serves accounts of all sizes.
- Westfield Insurance: Westfield is a super-regional P&C group with specialty and excess casualty capabilities, including surplus lines for small-to-medium commercial accounts. Comparable product scope and distribution through independent agents, though smaller than global incumbents.
Direct peers
- Kinsale Insurance Group: Kinsale is a publicly traded Excess & Surplus Lines carrier focused on small-to-medium commercial accounts distributed through wholesale brokers. Directly comparable in product set (GL, Property, Excess, Inland Marine-like) and high-volume/small-premium go-to-market.
- James River Insurance Group:
- Capitol Specialty Insurance Corporation: Capitol Specialty is a Wisconsin-domiciled E&S carrier writing GL, property, inland marine, and excess casualty through wholesale agents. Closely comparable in product mix, distribution model, and small-to-medium commercial E&S positioning.
- North American Casualty Co. (NAC) — part of RPS / RPS Wholesale: Risk Placement Services is one of the largest wholesale brokers and managing general agents placing E&S business, including GL, property, and excess. Comparable in the wholesale distribution ecosystem where Nautilus's agent partners operate.
- Burns & Wilcox: Burns & Wilcox is a major national wholesale insurance broker specializing in E&S placement for hard-to-place commercial risks. Comparable as a wholesale-channel counterpart that distributes commercial E&S property and casualty products.
Emerging players
- SkyCover Insurance: SkyCover is a tech-enabled E&S commercial MGA and digital platform focused on small commercial excess and umbrella. Comparable in targeting small commercial E&S and using digital/embedded distribution to reach retail agents, similar in spirit to Nautilus's Pathpoint partnership.
Market position
Strengths4 records
Weaknesses4 records
Competitive moat6 records
Key risks6 records
Key highlights7 records
Customer concentration
Nautilus Insurance Group social profiles
Digital presenceNautilus Insurance Group financial estimates
Financial estimateRevenue estimate
Valuation estimate
Nautilus Insurance Group leadership team
Management profileNumber of profiles
Profiles7 records
Nautilus Insurance Group subsidiaries and ownership
Company hierarchySubsidiaries2 records
Nautilus Insurance Group funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
Nautilus Insurance Group M&A and investment
M&A and investmentM&A
Investments
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about Nautilus Insurance Group
What does Nautilus Insurance Group do?
Nautilus Insurance Group underwrites and provides Excess and Surplus (E&S) Lines commercial property and casualty insurance coverage through appointed wholesale general agents and Managing General Agents. Its product suite includes General Liability, Commercial Property, Commercial Excess, Light Brokerage, and Inland Marine, addressing small- to medium-sized commercial risks that cannot be placed in standard insurance markets and that are written monoline or packaged. Coverage is available in all 50 states and D.C., backed by Nautilus Insurance Company and Great Divide Insurance Company (both W. R. Berkley Corporation subsidiaries).
Is Nautilus Insurance Group a public or private company?
Nautilus Insurance Group is a private company. It is classified as corporate owned and is currently operating.
When was Nautilus Insurance Group founded?
Nautilus Insurance Group was founded in 1985. It employs 251 to 500 people.
Where is Nautilus Insurance Group based?
Nautilus Insurance Group is headquartered in Scottsdale, United States, in the North America region.
How does Nautilus Insurance Group make money?
One revenue line is on record: commercial Insurance Premiums.
Who are Nautilus Insurance Group's main competitors?
Broad incumbents on record are Markel Group, Crum & Forster, Zurich North America and Westfield Insurance. Direct peers are Kinsale Insurance Group, James River Insurance Group, Capitol Specialty Insurance Corporation, North American Casualty Co. (NAC) — part of RPS / RPS Wholesale and Burns & Wilcox. SkyCover Insurance is listed as an emerging player.
Does Nautilus Insurance Group have an API?
No public API is recorded for Nautilus Insurance Group.
What industry is Nautilus Insurance Group in?
Nautilus Insurance Group's product category is Excess and Surplus Lines Commercial Property and Casualty Insurance. Its primary akta.pro industry code is FSAJAGAA, Excess Casualty (Lead/Umbrella/XS). Its NAICS code is 524126 and its SIC code is 6331.