Insights

Market Niche Focus Superior Underwriters specializes in hard-to-place, specialty, and surplus lines insurance products, presenting an opportunity to target niche insurers and agents who require tailored coverage solutions for complex risk profiles.

Recent Acquisition The recent acquisition by AmWINS Group Inc. indicates a growth trajectory and potential for expanded distribution channels, making it a strategic point to introduce complementary insurance products and partnership proposals.

Regional Presence With a focus on the Western United States including Washington, Oregon, and California, there is an opportunity to tailor sales efforts toward regional brokers and carriers seeking specialized coverage options aligned with local market needs.

Financial Scope With revenue estimated between $10 million and $25 million, Superior Underwriters presents a mid-sized platform where targeted outreach to independent agents and brokers can help expand their market share with your specialized offerings.

Technology Utilization Leveraging their modern tech stack including analytics and web security tools indicates a commitment to digital efficiency, opening doors for innovative digital insurance solutions and partnership opportunities in insurtech.

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, reCAPTCHA, and more. Explore Superior Underwriters | GSU Insurance Services's tech stack below.

  • jQuery
    Javascript Libraries
  • Windows Server
    Operating Systems
  • reCAPTCHA
    Security
  • Imperva
    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 2 format(s):
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

Where is Superior Underwriters | GSU Insurance Services's headquarters located?

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Superior Underwriters | GSU Insurance Services's main headquarters is located at 2002 156th Avenue Northeast Suite 201 Bellevue, Washington 98007 United States. The company has employees across 1 continents, including North America.

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.

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

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Superior Underwriters | GSU Insurance Services's SIC code is 8721 - Accounting, Auditing, and Bookkeeping Services 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 April 2026, Superior Underwriters | GSU Insurance Services has approximately 17 employees across 1 continents, including North America. Key team members include Interim Vice President, Student Affairs And Enrollment Management: M. W.Commercial Auto Department Manager: L. S.Principal Agent: J. 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 jQueryWindows ServerreCAPTCHAImpervaZURB FoundationGoogle AnalyticsMicrosoft ASP.NETMicrosoft 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

InsuranceWashington, United States11-50 Employees

Superior Underwriters and GSU Insurance Services are divisions of Groninger & Co., Inc.

Established in 1928, we operate as a locally-owned independent General Agency with our home office located in Bellevue, Washington. We specialize in hard-to-place, specialty, and surplus lines business and market our products to Independent Agents throughout the United States including;  Alaska, California, Colorado, Idaho, Montana, Nevada, Oregon, Utah, Washington, and Wyoming. 

We offer various programs for admitted and non-admitted business, and have binding authority to write the following lines: Commercial Property & Casualty, Garage Liability, Personal Lines, and Transportation including business, public, local, intermediate, and long-haul trucking. With over 100 years of collective underwriting experience, our staff works closely with our carriers to provide well-designed products and coverages for our retail partners.

Section iconCompany Overview

Headquarters
2002 156th Avenue Northeast Suite 201 Bellevue, Washington 98007 United States
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

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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