Wisconsin Top Companies List by Market Cap as of August 2026

Oshkosh Corporation is a Industries and Automobile parts manufacturing company. The regional service support centers provide critical nationwide access to apparatus repairs, preventative maintenance, modification, customization, fabrication, upgrades, and performance hardware. The company committed to delivering the best equipment at the time of sale, as well as providing the best service, training and aftermarket care in the industry. The headquarters is in USA.

Zurn Elkay Water Solutions supplies the industry’s widest range of clean water solutions for drinking water.

A. O. Smith Corporation is a water heating and water treatment solutions company. The company products are water boilers, water heaters, water tanks and water treatment products. The Headquarters is in USA.

Plexus is a Integrated Design, Engineering and Manufacturing Solutions company. The headquarters is in USA.

MGIC Investment Corporation is a Mortgage Insurance company. It support to causes emphasizing health, social services, civic efforts, education, arts and culture. In 2019, company and co workers donated approximately $1,218,192 in financial contributions and countless volunteer hours to local organizations. The headquarters is in USA.

Schneider National is a Car Transportation company. It is having approximately $2 billion in third party freight managed per year and annual operating revenues is $5 billion as per 2019. The headquarters is in USA.

Associated Banc-Corp is a Banking and Financial Service Holding company. It is having employs more than 4,400 colleagues. The headquarters is in USA.

Sensient Technologies Corporation is a manufacturer and marketer of colors, flavors, and other specialty ingredients. It uses advanced technologies and robust global supply chain capabilities to develop specialized solutions for food and beverages as well as products that serve the pharmaceutical, nutraceutical, cosmetic and personal care industries. The company operations allow to serve customers in more than 150 nations with annual revenues surpassing $1.5 billion. The headquarters is in USA.