Largest Tech Companies in Wisconsin

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We’ve compiled a list of the largest tech companies in Wisconsin to set the record straight about this Upper Midwestern gem having more to offer than meets the eye.

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Derco is actively engaged with the U.S. military. Their AI technology is in constant flow to make the shift from manned to unmanned a safe and smooth transition.

Derco Aerospace – 284 employees

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Magnetek specializes in developing and producing both digital power and control systems for mining, people moving, and material handling.

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Magnetek – 350 employees

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Renaissance provides SaaS services to PreK-12 students for education and assessment in one-third of U.S. schools and in 90 countries worldwide.

Renaissance Learning – 700 employees

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Epic is the first privately held company to make the list, and is one of the more interesting tech companies in Wisconsin. It provides healthcare software to hospitals.

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Epic Systems – 10,000 employees

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Rockwell automation has become involved in everything from IT to industrial automation, robotics, and cybersecurity.

Rockwell Automation – 24,500 employees

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It provides services to banks, credit unions, mortgage companies, insurance, and retailers.

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Fiserv – 44,000 employees

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