Insights

Acquisition Opportunity Amwins acquisition of Superior Underwriters creates a potential cross-sell path to Amwins’ broader distribution network and carrier relationships. Leverage the enhanced scale and access to new admitted and non-admitted markets to prospect expansion opportunities for existing clients and partners.

Specialty Focus Strong specialization in hard-to-place, specialty and surplus lines with trucking and transportation programs positions the firm to target mid-market insureds with complex risk profiles. Sales teams can target independent agents serving niche industries seeking robust capacity and tailored coverage.

Regional Presence Bellevue, Washington based MG A with national reach to states including Alaska, California, Colorado and more offers geographic expansion and multi-state programs. Opportunities exist to partner with agents in target states seeking admitted and non-admitted solutions and binding authority capabilities.

Experience and Leadership Over a century of underwriting experience and a track record of leadership appointments indicates stability and expertise. This can be a trust signal for agents and carriers seeking reliable underwriting and strong agency relationships for complex commercial lines.

Growth Signals Revenue range of ten to twenty-five million with recent leadership hires and strategic promotions suggests ongoing growth. Leverage this momentum to position as a growth partner for agents looking to scale specialty lines and for carriers seeking experienced underwriters for high-touch programs.

Similar companies to Superior Underwriters | GSU Insurance Services

Superior Underwriters | GSU Insurance Services Tech Stack

Superior Underwriters | GSU Insurance Services uses 8 technology products and services including jQuery, Windows Server, Imperva, and more. Explore Superior Underwriters | GSU Insurance Services's tech stack below.

  • jQuery
    Javascript Libraries
  • Windows Server
    Operating Systems
  • Security
  • reCAPTCHA
    Security
  • ZURB Foundation
    UI Frameworks
  • Google Analytics
    Web Analytics
  • Microsoft ASP.NET
    Web Frameworks
  • Microsoft IIS
    Web Servers

Superior Underwriters | GSU Insurance Services's Email Address Formats

Superior Underwriters | GSU Insurance Services uses at least 5 email formats:
Superior Underwriters | GSU Insurance Services Email FormatsExamplePercentage
FLast@gsusuperior.comJDoe@gsusuperior.com
75%
First@gsusuperior.comJohn@gsusuperior.com
25%
Last@superiorunderwriters.comDoe@superiorunderwriters.com
40%
First@superiorunderwriters.comJohn@superiorunderwriters.com
40%
First.Last@superiorunderwriters.comJohn.Doe@superiorunderwriters.com
20%

Frequently Asked Questions

What is Superior Underwriters | GSU Insurance Services's phone number?

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You can contact Superior Underwriters | GSU Insurance Services's main corporate office by phone at . For more prospecting data, LeadIQ has access to up-to-date and accurate contact information within our platform. Find, capture, and sync contact data to your CRM and sales tools in one click.

What is Superior Underwriters | GSU Insurance Services's official website and social media links?

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Superior Underwriters | GSU Insurance Services's official website is superiorunderwriters.com and has social profiles on LinkedIn.

How much revenue does Superior Underwriters | GSU Insurance Services generate?

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As of October 2026, Superior Underwriters | GSU Insurance Services's annual revenue is estimated to be $10M - $25M.

What is Superior Underwriters | GSU Insurance Services's SIC code and NAICS code?

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Superior Underwriters | GSU Insurance Services's SIC code is 8721 - Accounting, Auditing, and Bookkeeping Services and NAICS code is 524 - Insurance Carriers and Related Activities.

How many employees does Superior Underwriters | GSU Insurance Services have currently?

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As of October 2026, Superior Underwriters | GSU Insurance Services has approximately 16 employees across 2 continents, including North America and Asia. Key team members include Commercial Auto Department Manager: L. S. Explore Superior Underwriters | GSU Insurance Services's employee directory with LeadIQ.

What industry does Superior Underwriters | GSU Insurance Services belong to?

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Superior Underwriters | GSU Insurance Services operates in the Insurance industry.

What technology does Superior Underwriters | GSU Insurance Services use?

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Superior Underwriters | GSU Insurance Services's tech stack includes jQuery, Windows Server, Imperva, reCAPTCHA, ZURB Foundation, Google Analytics, Microsoft ASP.NET and Microsoft IIS.

What is Superior Underwriters | GSU Insurance Services's email format?

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Superior Underwriters | GSU Insurance Services's email format typically follows the pattern of FLast@gsusuperior.com. Find more Superior Underwriters | GSU Insurance Services email formats with LeadIQ.

When was Superior Underwriters | GSU Insurance Services founded?

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Superior Underwriters | GSU Insurance Services was founded in 1928.
Superior Underwriters | GSU Insurance Services logo

Superior Underwriters | GSU Insurance Services

InsuranceWashington, United States11-50 Employees

Superior Underwriters and GSU Insurance Services operate as divisions of Groninger & Co., Inc., a long-established insurance organization. Established in 1928, the firm is based in Bellevue, Washington, and functions as a locally owned independent General Agency. It focuses on hard-to-place, specialty, and surplus lines and markets its products through Independent Agents across the United States, including Alaska, California, Colorado, Idaho, Montana, Nevada, Oregon, Utah, Washington, and Wyoming.

It maintains programs for both admitted and non-admitted business and has binding authority to write Commercial Property & Casualty, Garage Liability, Personal Lines, and Transportation coverages, including various trucking operations. With more than a century of underwriting experience collectively, its staff collaborates with carriers to design products and coverages for its retail partners. Recent development: In January 2025, AmWINS Group, Inc. announced the acquisition of Superior Underwriters.

Section iconCompany Overview

Phone number
SIC Code
8721 - Accounting, Auditing, and Bookkeeping Services
NAICS Code
524 - Insurance Carriers and Related Activities
Founded
1928
Employees
11-50

Section iconFunding & Financials

  • $10M - $25M

    Superior Underwriters | GSU Insurance Services's revenue is estimated to be in the range of $10M - $25M

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