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Mills-Winfield Engineering Sales, Inc.

About Us

Since our founding in 1930, Mills-Winfield Engineering Sales, Inc. has been a trusted manufacturers’ representative, delivering the finest standard and engineered process equipment to manufacturers and industrial operations throughout the region. With nearly a century of experience, we have built a reputation for reliability, technical expertise, and commitment to helping plants maximize uptime and optimize equipment performance.

As a full-service partner for industrial operators, our team combines decades of hands-on experience with a deep understanding of process equipment solutions, preventive maintenance, and spare parts management, enabling our customers to reduce downtime and streamline their operations. By representing leading global equipment manufacturers, we ensure access to high-quality, durable, and compliant components for every stage of production.

We serve a wide range of industries critical to the Midwest economy. Our expertise spans food and beverage processing, chemical manufacturing, corn and grain milling, paints and coatings, personal care and cosmetics, pharmaceuticals, plastics, municipal systems, steel production, and oil & gas refining. Whether you are an engineer specifying equipment, a contractor installing systems, an OEM sourcing reliable components, or an end-user maintaining operations, Mills-Winfield delivers solutions tailored to your industry needs.

Mills-Winfield proudly serves manufacturers and plants across our territories in Illinois, Indiana, Iowa, Michigan, and Wisconsin. Our offices in Itasca, IL, and Milwaukee, WI allow us to provide local support, fast response times, and expert guidance to our customers. By combining regional knowledge with industry-leading product representation, we help our clients maintain reliable, efficient, and compliant operations in a competitive industrial landscape.

At Mills-Winfield, we are more than a parts and equipment supplier; we are a strategic partner for process industries across the Midwest, dedicated to helping your plant succeed.

Meet the Team

Our team brings decades of combined experience across process equipment, applications, sales, and service. We work closely with manufacturers throughout the Midwest to help solve processing challenges, support equipment over its full lifecycle, and connect customers with the right solutions for their operation.

Patrick Dorn

President and Sales Engineer
Patrick serves as President and Sales Engineer at Mills-Winfield, working with equipment and brands including LIGHTNIN, Philadelphia, Plenty, Tranter, NASH/Garo, Runtech, Quadro, Scott-Turbon, and Plas-Tanks. He has been with Mills-Winfield for 10 years. In his free time, Patrick enjoys hiking, biking, 16-inch softball, golf, and other outdoor activities.

Bob McDermott

Sales Engineer
Bob is a Sales Engineer who works primarily with SPX FLOW-LIGHTNIN fluid mixers, Tranter heat exchangers, and Quadro high-shear dispersers. He has been with Mills-Winfield for 27 years. When he isn’t working with customers, Bob enjoys following Chicago Blackhawks hockey.

Steve Andretich

Vice President and Sales Engineer
Steve is Vice President and a Sales Engineer, supporting products including LIGHTNIN, Philadelphia, and Plenty mixers, along with GD NASH vacuum pumps, Tranter heat exchangers, and Quadro high-shear dispersers. Steve has fifteen years of experience as a sales engineer specializing in customer-focused solutions, currently in his sixth year with Mills-Winfield. He also has five additional years of experience with LIGHTNIN Mixers as an aftermarket engineer, product specialist, and regional manager. Steve’s hobbies include being a Chicago area sports fan, and he also enjoys physical fitness and mountain biking.

Benjamin Drummond

Sales Engineer
Ben is a Sales Engineer focused on Mills-Winfield’s dry-side equipment. He has been with Mills-Winfield for two years. One of Benjamin’s hobbies is homebrewing beer.

Josh Anderson

Sales Engineer
Josh is a Sales Engineer who works primarily with powder processing and air and gas handling equipment. He has been with Mills-Winfield for three years. Josh enjoys biking and spending time outdoors with his wife and kids.

Matt Heiligenthaler

Sales Engineer
Matt is a Sales Engineer and Mills-Winfield’s Wisconsin representative, working primarily with dry material processing equipment. He has been with Mills-Winfield for five years. A Buffalo Bills and Sabres fan, Matt also enjoys billiards and other games of skill.

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