Our Story.

GroupOne Insurance Services is a national intermediary insurance underwriting agency specializing in standard and non-standard property, liability and specialty insurance with robust capacity within domestic carriers and Lloyd’s syndicates.

Backed by 50 years of unparalleled service, GroupOne Insurance Services originated from the 2010 merger of two long-time, trusted Canadian intermediary underwriting groups; Genmark Insurance Services Inc. and Central Underwriters Inc.  Today, GroupOne continues this legacy by delivering quality customer service, underwriting expertise, market experience and integrity to our broker partners in need of placing regular and hard-to-place risks. 

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We pride ourselves on our unrelenting support to brokers and leading insurers.

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Guiding Excellence.

Our best in class underwriting team specializes in many niche products and programs. We pride ourselves on fast quoting and turnaround time at competitive rates, immediate binding, and quick policy issuance.

At GroupOne we understand the importance of access to intermediaries who write business that otherwise could not be placed within traditional markets. 

Our insurance markets are licensed in Canada, both domestically and internationally. We pride ourselves on our unrelenting support to our brokers as well as our provision of access to leading insurers with whom we have had long-standing relationships. GroupOne is RIBO licensed.

Collectively, our experienced management and underwriting teams, use of a customer-centric approach as well as our access to competitive insurance markets, ensure that we continue to support our broker partners with “Service Excellence.  Delivered One Policy at a Time.”