GenStar Insurance Services, LLC
Excess, surplus, and specialty casualty and property insurance through wholesale distribution channels.
Overview
GenStar Insurance Services, LLC is an excess and surplus lines MGA writing specialty property and casualty insurance through a wholesale-only distribution model across the United States. The company operates as a wholly owned subsidiary of General Reinsurance Corporation, itself a member of the Berkshire Hathaway family of companies.
GenStar provides capacity through two carrier entities: General Star Indemnity Company on a non-admitted basis and General Star National Insurance Company on an admitted basis. Its underwriting focus covers hard-to-place and specialty casualty and property risks, including primary and excess casualty, professional liability, property brokerage for hospitality risks, and specialty programs.
Distribution is restricted exclusively to wholesale brokers, managing general underwriters, and program administrators. The company does not transact business with retail agents or directly with insureds. Since 1984, GenStar has maintained A.M. Best A++ XV (Superior) and S&P AA+ financial strength ratings, reflecting the backing of its Berkshire Hathaway parent.
Products & Services
Excess and Surplus Lines Casualty
Primary and excess casualty coverages for hard-to-place commercial risks in the specialty and surplus lines market.
Key Features
- Primary casualty for hard-to-place classes
- Excess casualty layering
- Non-admitted and admitted paper options
Target Users: Commercial insureds with specialty or non-standard risk profiles.
Distribution: Wholesale brokers, MGUs, and program administrators only
Specialty Property
Property coverage for hospitality and related specialty risks, including hotels, motels, and restaurants.
Key Features
- Hotel and motel property
- Restaurant property
- Related specialty property classes
Target Users: Hospitality sector operators with specialty property exposures.
Distribution: Wholesale brokers only
Professional Liability Programs
Specialty professional liability programs developed in partnership with program administrators and platforms, including accountants professional liability.
Key Features
- Accountants professional liability
- Program-based structure with program administrators
- Multi-state distribution capability
Target Users: Professional services firms, including accountants and related professionals.
Distribution: Program administrators and wholesale brokers
At a Glance
- Founded
- 1984
- Headquarters
- Stamford, Connecticut, USA
- Employees
- 101-500
Category & Focus
Links
Last updated: 2026-05-17