GuideOne’s Underwriting Center of Excellence Aims to Deliver Stronger Products and Results Date June 14, 2022 For more than 75 years, GuideOne Insurance Company® (GuideOne) has been recognized for its deep knowledge of niche businesses, strong relationships with partners and intellectual curiosity to keep the organization moving forward. Today, the company’s level of talent and knowledge makes it a larger, more sophisticated player in the marketplace than it was previously. “I’m proud to share that GuideOne is now positioned to further differentiate our organization in the marketplace by delivering intellectual capital and distinct risk insights to our distribution partners and policyholders,” said Patrick Daley, senior vice president, chief underwriting officer at GuideOne. “At this point in GuideOne’s evolution, we have a high level of underwriting excellence within our organization, and we’re ready to be known for that expertise.” By becoming the Underwriting Center of Excellence (Center of Excellence), the team will be able to support the underwriting integrity and profitability of each of the company’s segments. In this next chapter of the Home Office Underwriting team, it will now function as a shared service across all lines of business. While the Center of Excellence has launched, it will continue to evolve. The Pricing, Analytic and CAT teams will continue as-is, while GuideOne's underwriting teams will sharpen their focus on providing underwriting governance and leading the processes for all technical and data initiatives within three lines of business: Workers’ Compensation, Casualty and Property. Each head of the line business within the Center of Excellence will work with senior leadership, actuarial, risk management and segment leaders to drive the highest level of underwriting excellence within the organization. The Center of Excellence will bring tools and products to GuideOne’s Core, E&S and Programs underwriting teams that will help the company make better risk decisions and consistently and accurately deliver profitable results year-over-year. This drives our company's mission to provide nimble solutions for niche needs®. GuideOne aspires to be known for its underwriting excellence, and it will continue to strive to deliver the strongest products and results it can. ### About GuideOne Insurance Company GuideOne Insurance Company supports our policyholders’ goals by providing nimble solutions for niche needs®. GuideOne reached $1.06B in written premium in 2021 driven by diverse portfolio of property and liability insurance and risk management solutions provided through GuideOne Insurance, GuideOne National, CGA Insurance Services and GC3. Our company is guided by our mission and our promise — We Help Make Positive Change Possible — by protecting the people who strengthen and support our communities. Rated “A-” (Excellent) by industry analyst AM Best, GuideOne’s corporate headquarters are located in West Des Moines, Iowa. For more information, visit www.guideone.com. Media Contact GuideOne Insurance Corporate CommunicationsCorporate-communications@guideone.com