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General Agent & Surplus Lines Broker

Superior Underwriters

GSU Passionately Works to Exceed your Expectations.
Proudly Serving Producers in 10 Western States.

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Providing Superior Service Since 1928 Superior Underwriters - GSU Insurance Services - Groninger & Co., Inc. - CA License #0745051

800-782-8699 (WA Office) 866-366-1644 (UT Office)