Cory Koster brings determination, creativity, and a strong work ethic to his role as an Independent Sales Representative for Stewart Marketing Group in Wisconsin and the surrounding Midwest region.

Living and working in a rural community, Cory understands the unique challenges many organizations face when operating with limited resources and tight budgets. He knows that building relationships takes time, persistence, and trust—and he approaches his work with that mindset every day.

Cory has experience working across several industries, including manufacturing, financial services, and real estate. His background also includes technical training in systems and information technology, which supports his ability to manage details, solve problems, and keep projects moving forward. He focuses on helping customers identify practical solutions that meet their needs while staying mindful of cost and timing.

In developing new markets in Wisconsin and Minnesota, Cory has demonstrated resilience and creativity—qualities that are essential when serving rural communities and growing businesses. He understands the value of showing up consistently, listening carefully, and following through on commitments.

At Stewart Marketing Group, Cory supports customers by coordinating orders, communicating clearly, and ensuring that projects move smoothly from planning through delivery. His personable style and willingness to roll up his sleeves make him easy to work with and dependable in day-to-day operations.

Outside of work, Cory enjoys fishing, spending time outdoors, and gathering with his young family for backyard barbecues—activities that reflect his connection to the community he serves.

Our customers know that when Cory is involved, they can expect persistence, honest communication, and a genuine commitment to getting the job done right.