Superior Underwriters | GSU Insurance Services Employee Directory

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.

Find Superior Underwriters | GSU Insurance Services employees' phone numbers or email addresses

Superior Underwriters | GSU Insurance Services Global Highlights

North America
22

United States Of America
22

Superior Underwriters | GSU Insurance Services's Leadership

M. W.
Interim Vice President, Student Affairs And Enrollment Management
Mobile Phone
Email
L. S.
Commercial Auto Department Manager
Mobile Phone
Email
J. S.
Principal Agent
Mobile Phone
Email

Contact profiles from Superior Underwriters | GSU Insurance Services

Name

Title

Contact Info

Location

Last Update

M. W.
Interim Vice President, Student Affairs And Enrollment Management
Mobile Phone
Email
United StatesTexas
Dec 30, 2023
L. S.
Commercial Auto Department Manager
Mobile Phone
Email
Oct 23, 2024
J. S.
Principal Agent
Mobile Phone
Email
United StatesTexas
Oct 22, 2024

Frequently Asked Questions

What is Superior Underwriters | GSU Insurance Services known for?

Superior Underwriters | GSU Insurance Services was founded in 1928 operates in the Insurance industry. The company's main headquarters is located in 2002 156th Ave NE Suite 201, Bellevue, Washington 98007, US; you can contact the main corporate office by phone at

+1-425-643-****

. Explore Superior Underwriters | GSU Insurance Services's company overview page for more information.

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

Superior Underwriters | GSU Insurance Services employees' email format typically follows the pattern of . Trying to find reliable and up-to-date employee contact data? Find more Superior Underwriters | GSU Insurance Services email formats with LeadIQ.

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

Superior Underwriters | GSU Insurance Services has approximately 16 employees as of October 2025. These team members are located across 1 continents, including North America.

Who are Superior Underwriters | GSU Insurance Services's key employees and leadership?

As of October 2025, Superior Underwriters | GSU Insurance Services's key employees include:

Interim Vice President, Student Affairs And Enrollment Management: M. W.
Commercial Auto Department Manager: L. S.
Principal Agent: J. S.

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