Wisconsin is home to a diverse range of industries, from manufacturing to healthcare to technology.
The state is also home to some of the largest companies in the country, with many Fortune 500 companies calling Wisconsin their headquarters.
In this article, we will explore the 30 largest companies in Wisconsin, each making a significant impact on the state’s economy and beyond.
We will explore each company’s history, their major contributions to their respective industries, and how they have helped shape Wisconsin’s economic landscape.
1. Johnson Controls International plc
Background: Johnson Controls International plc is a multinational conglomerate headquartered in Cork, Ireland, with operational headquarters in Milwaukee, Wisconsin, USA.
It was formed in 2016 through the merger of Johnson Controls with Tyco International.
Founded: 1885
Core Industries: Building Efficiency, HVAC Systems, Fire and Security Solutions, Energy Storage
Key Achievements: Johnson Controls is a global leader in building efficiency and sustainability solutions.
It has a strong reputation for innovation, particularly in energy-efficient technologies and smart building solutions.
The company’s products and services are widely used in commercial, industrial, and residential buildings worldwide.
2. Northwestern Mutual
Background: Northwestern Mutual is a financial services mutual organization based in Milwaukee, Wisconsin, USA.
Founded in 1857 by John C. Johnston, the company provides life insurance, disability income insurance, investment products, and advisory services.
Founded: 1857
Core Industries: Life Insurance, Financial Services, Wealth Management
Key Achievements: Northwestern Mutual is one of the largest life insurance providers in the United States and consistently ranks among the top financial services companies globally.
It has a strong reputation for financial strength, stability, and customer service. The company is also known for its commitment to community involvement and philanthropy.
3. Kohl’s Corporation
Background: Kohl’s Corporation is a retail chain headquartered in Menomonee Falls, Wisconsin, USA.
Founded in 1962 by Maxwell Kohl, the company operates department stores offering a wide range of apparel, accessories, home goods, and other products.
Founded: 1962
Core Industries: Retail, Apparel, Home Goods
Key Achievements: Kohl’s has built a loyal customer base through its emphasis on value, convenience, and customer service.
The company has also invested in digital innovation and omnichannel capabilities to enhance the shopping experience for its customers.
Kohl’s is recognized for its corporate responsibility initiatives, including sustainability efforts and community engagement programs.
4. ManpowerGroup
Background: ManpowerGroup is a multinational staffing and workforce solutions company headquartered in Milwaukee, Wisconsin, USA.
Founded in 1948 by Elmer Winter and Aaron Scheinfeld, the company provides recruitment, assessment, training, outsourcing, and workforce consulting services to businesses worldwide.
Founded: 1948
Core Industries: Staffing, Recruitment, Workforce Solutions
Key Achievements: ManpowerGroup is one of the largest and most recognized staffing firms globally, known for its expertise in workforce management and talent acquisition.
The company has received numerous awards for its workplace culture, diversity and inclusion initiatives, and corporate social responsibility efforts.
ManpowerGroup is also a thought leader in workforce trends and labor market insights.
5. Harley-Davidson
Background: Harley-Davidson is an iconic American motorcycle manufacturer headquartered in Milwaukee, Wisconsin, USA.
Founded in 1903 by William S. Harley, Arthur Davidson, Walter Davidson, and William A. Davidson, the company is known for producing heavyweight motorcycles with a distinctive design and sound.
Founded: 1903
Core Industries: Motorcycle Manufacturing, Apparel, Accessories
Key Achievements: Harley-Davidson is one of the most recognizable and respected brands in the motorcycle industry, with a rich history and heritage.
The company has a dedicated customer base and a strong brand community, supported by events such as Harley-Davidson rallies and motorcycle rides.
Harley-Davidson has also expanded its product offerings to include apparel, accessories, and lifestyle merchandise, further strengthening its brand presence worldwide.
6. Oshkosh Corporation
Background: Oshkosh Corporation is a leading manufacturer of specialty vehicles and vehicle bodies, headquartered in Oshkosh, Wisconsin, USA.
The company was founded in 1917 and has since grown to become a trusted supplier of tactical military vehicles, commercial trucks, fire and emergency vehicles, and access equipment.
Founded: 1917
Core Industries: Specialty Vehicles, Truck Manufacturing, Defense, Access Equipment
Key Achievements: Oshkosh Corporation is known for its innovation in vehicle design and engineering, particularly in the defense and emergency response sectors.
The company’s products are used by military forces, first responders, and commercial fleets around the world.
Oshkosh Corporation has a reputation for reliability, durability, and superior performance in challenging environments.
7. Rockwell Automation
Background: Rockwell Automation is a global leader in industrial automation and information solutions, with headquarters in Milwaukee, Wisconsin, USA.
Founded in 1903 as the Compression Rheostat Company, the company has evolved to become a pioneer in factory automation, control systems, and software.
Founded: 1903
Core Industries: Industrial Automation, Control Systems, Software
Key Achievements: Rockwell Automation is at the forefront of the fourth industrial revolution, helping manufacturers optimize their production processes, improve efficiency, and enhance competitiveness.
The company’s products and solutions enable seamless integration of machines, data, and analytics, leading to smarter, more connected factories.
Rockwell Automation is committed to driving innovation and digital transformation in the manufacturing industry.
8. WEC Energy Group
Background: WEC Energy Group is a diversified energy company based in Milwaukee, Wisconsin, USA.
Formed in 2015 through the merger of Wisconsin Energy Corporation and Integrys Energy Group, the company operates electric and natural gas utilities serving customers in Wisconsin, Illinois, Michigan, and Minnesota.
Founded: 2015 (through merger)
Core Industries: Electric Utilities, Natural Gas Utilities, Energy Services
Key Achievements: WEC Energy Group is committed to providing safe, reliable, and affordable energy to its customers while promoting sustainability and environmental stewardship.
The company invests in renewable energy sources, energy efficiency programs, and grid modernization initiatives to meet the evolving needs of the communities it serves.
WEC Energy Group is recognized for its strong financial performance, operational excellence, and commitment to customer satisfaction.
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9. American Family Insurance Group
Background: American Family Insurance Group is a mutual insurance company headquartered in Madison, Wisconsin, USA.
Founded in 1927 by Herman Wittwer, the company offers a wide range of insurance products, including auto, home, life, and business insurance.
Founded: 1927
Core Industries: Insurance, Financial Services
Key Achievements: American Family Insurance Group is committed to protecting and supporting its customers’ dreams and aspirations.
The company focuses on delivering personalized insurance solutions, exceptional customer service, and innovative digital experiences.
American Family Insurance Group is also actively involved in community outreach and philanthropic initiatives, contributing to the well-being of the communities it serves.
10. Schneider National
Background: Schneider National is a premier provider of transportation and logistics services, headquartered in Green Bay, Wisconsin, USA.
Founded in 1935 by A.J. Schneider, the company has grown to become one of the largest trucking and logistics companies in North America, offering a comprehensive range of transportation solutions.
Founded: 1935
Core Industries: Transportation, Logistics, Supply Chain Management
Key Achievements: Schneider National is known for its commitment to excellence in transportation and logistics, leveraging advanced technology, industry expertise, and a vast network of assets and resources.
The company provides tailored solutions to meet the unique needs of its customers, ranging from truckload and intermodal transportation to warehousing and distribution services.
Schneider National is dedicated to driving efficiency, reliability, and sustainability across the supply chain.
11. Aurora Health Care
Background: Aurora Health Care is a healthcare system based in Milwaukee, Wisconsin, USA.
Founded in 1984, it has grown to become one of the largest integrated healthcare systems in the Midwest, serving communities throughout eastern Wisconsin and northern Illinois.
Founded: 1984
Core Industries: Healthcare Services, Hospital Management, Medical Research
Key Achievements: Aurora Health Care is committed to delivering high-quality, compassionate care to its patients and communities.
The healthcare system provides a comprehensive range of services, including primary care, specialty care, hospitals, clinics, and urgent care centers.
Aurora Health Care is known for its patient-centered approach, innovative medical treatments, and commitment to medical research and education.
12. Quad/Graphics
Background: Quad/Graphics is a leading provider of print and marketing services, with headquarters in Sussex, Wisconsin, USA.
Founded in 1971 by Harry V. Quadracci, the company has grown to become one of the largest printing companies in the world, offering a wide range of print products, marketing solutions, and multichannel communications services.
Founded: 1971
Core Industries: Printing Services, Marketing, Advertising
Key Achievements: Quad/Graphics is known for its innovation and expertise in print production, leveraging advanced technology and creative solutions to help clients achieve their marketing goals.
The company offers a comprehensive suite of services, including offset printing, digital printing, direct mail, packaging, and marketing automation.
Quad/Graphics is committed to sustainability and environmental stewardship, implementing initiatives to reduce waste, conserve resources, and minimize its carbon footprint.
13. Fiserv
Background: Fiserv is a global provider of financial services technology, headquartered in Brookfield, Wisconsin, USA.
Founded in 1984, the company specializes in software and solutions for banking, payments, processing, and digital commerce.
Founded: 1984
Core Industries: Financial Services Technology, Banking, Payments
Key Achievements: Fiserv is a leader in fintech innovation, empowering financial institutions and businesses with cutting-edge technology and digital solutions.
The company’s products and services enable secure, convenient, and efficient financial transactions, both online and offline.
Fiserv is committed to driving digital transformation in the financial services industry, helping clients adapt to evolving consumer preferences and market trends.
14. MGIC Investment Corporation
Background: MGIC Investment Corporation is a mortgage insurance company based in Milwaukee, Wisconsin, USA.
Founded in 1957, it is the largest private mortgage insurer in the United States, providing mortgage insurance to lenders and investors to protect against credit risk.
Founded: 1957
Core Industries: Mortgage Insurance, Financial Services
Key Achievements: MGIC Investment Corporation plays a vital role in the housing market by facilitating access to mortgage financing for homebuyers, particularly those with less than 20% down payment.
The company’s mortgage insurance products help lenders manage risk and expand homeownership opportunities.
MGIC Investment Corporation is recognized for its financial strength, risk management expertise, and commitment to responsible lending practices.
15. S.C. Johnson & Son
Background: S.C. Johnson & Son is a global manufacturer of household cleaning products and consumer goods, headquartered in Racine, Wisconsin, USA.
Founded in 1886 by Samuel Curtis Johnson, the company is known for brands such as Windex, Pledge, Glade, and Raid.
Founded: 1886
Core Industries: Household Cleaning Products, Consumer Goods
Key Achievements: S.C. Johnson & Son is a leader in the household cleaning and home care industry, offering a wide range of products to meet the needs of consumers worldwide.
The company is committed to sustainability and environmental responsibility, developing products and packaging that minimize environmental impact.
S.C. Johnson & Son is also dedicated to corporate social responsibility, supporting communities and charitable initiatives around the globe.
16. Alliant Energy
Background: Alliant Energy is a public utility holding company headquartered in Madison, Wisconsin, USA.
Founded in 1917 as the Wisconsin Power and Light Company, the company provides electric and natural gas services to customers in Wisconsin, Iowa, and Minnesota.
Founded: 1917
Core Industries: Electric Utilities, Natural Gas Utilities, Energy Services
Key Achievements: Alliant Energy is committed to delivering safe, reliable, and affordable energy to its customers while promoting sustainability and environmental stewardship.
The company invests in renewable energy projects, energy efficiency initiatives, and grid modernization efforts to support a clean energy future.
Alliant Energy also engages with communities to foster economic development and improve quality of life.
17. Plexus Corp.
Background: Plexus Corp. is a global electronic manufacturing services company headquartered in Neenah, Wisconsin, USA.
Founded in 1979, the company provides design, engineering, manufacturing, and aftermarket services for a diverse range of industries, including healthcare, aerospace, defense, and telecommunications.
Founded: 1979
Core Industries: Electronic Manufacturing Services, Engineering, Design
Key Achievements: Plexus Corp. is known for its expertise in complex manufacturing and supply chain solutions, helping customers bring innovative products to market efficiently and cost-effectively.
The company’s comprehensive capabilities, advanced technology platforms, and global footprint enable it to support customers throughout the product lifecycle. Plexus Corp. is committed to quality, reliability, and customer satisfaction.
18. Generac Power Systems
Background: Generac Power Systems is a leading manufacturer of backup power generation equipment, headquartered in Waukesha, Wisconsin, USA.
Founded in 1959, the company designs, manufactures, and distributes generators, transfer switches, and other power equipment for residential, commercial, and industrial applications.
Founded: 1959
Core Industries: Power Generation Equipment, Backup Power Solutions
Key Achievements: Generac Power Systems is a pioneer in the residential and commercial backup power market, known for its innovative products, reliable performance, and customer support.
The company’s generators are widely used in homes, businesses, hospitals, data centers, and other critical facilities to ensure uninterrupted power supply during outages.
Generac Power Systems is committed to promoting energy independence and resilience through its backup power solutions.
19. Sentry Insurance
Background: Sentry Insurance is a mutual insurance company based in Stevens Point, Wisconsin, USA.
Founded in 1904, the company offers a wide range of insurance products, including auto, home, business, and specialty lines, to individuals and businesses across the United States.
Founded: 1904
Core Industries: Insurance, Financial Services
Key Achievements: Sentry Insurance is known for its financial strength, stability, and personalized service, earning the trust of policyholders for over a century.
The company provides comprehensive insurance solutions tailored to the unique needs of its customers, backed by responsive claims handling and risk management expertise.
Sentry Insurance is committed to building long-term relationships and delivering peace of mind to its policyholders.
20. Joy Global Inc.
Background: Joy Global Inc. was a manufacturer of mining equipment and machinery, with headquarters in Milwaukee, Wisconsin, USA.
Founded in 1884 as the Joy Manufacturing Company, the company supplied equipment for surface and underground mining operations worldwide.
Founded: 1884
Core Industries: Mining Equipment, Machinery
Key Achievements: Joy Global Inc. was a global leader in the mining industry, known for its innovative products, advanced technology, and commitment to safety and productivity.
The company’s equipment and solutions helped mining companies increase efficiency, reduce costs, and maximize resource extraction.
Joy Global Inc. supported the global mining industry’s growth and development for over a century before being acquired by Komatsu in 2017.
21. Bemis Company
Background: Bemis Company is a global manufacturer of flexible packaging products, headquartered in Neenah, Wisconsin, USA.
Founded in 1858, the company produces packaging materials and solutions for food, consumer goods, healthcare, and industrial applications.
Founded: 1858
Core Industries: Packaging, Manufacturing
Key Achievements: Bemis Company is known for its innovative packaging solutions, including barrier films, pouches, and rigid containers, designed to protect and preserve a wide range of products.
The company’s packaging materials are used by leading brands worldwide, contributing to food safety, product freshness, and brand differentiation.
Bemis Company is committed to sustainability and environmental stewardship, striving to reduce waste and minimize its environmental footprint.
22. Johnsonville Sausage
Background: Johnsonville Sausage is a family-owned manufacturer of sausage products, headquartered in Sheboygan Falls, Wisconsin, USA.
Founded in 1945 by Ralph F. and Alice Stayer, the company specializes in the production of bratwurst, Italian sausage, breakfast sausage, and other meat products.
Founded: 1945
Core Industries: Food Processing, Manufacturing
Key Achievements: Johnsonville Sausage is renowned for its high-quality, flavorful sausage products, made from premium ingredients and traditional recipes.
The company’s sausages are popular among consumers for their taste, texture, and versatility, enjoyed at home, restaurants, and events across the country.
Johnsonville Sausage is committed to innovation and product development, introducing new flavors and varieties to meet evolving consumer preferences.
23. Harley-Davidson Financial Services
Background: Harley-Davidson Financial Services (HDFS) is a subsidiary of Harley-Davidson, Inc., providing financing solutions to support motorcycle purchases and ownership experiences.
Headquartered in Milwaukee, Wisconsin, USA, HDFS offers retail financing, leasing, insurance, and extended service contracts to customers worldwide.
Founded: Not Applicable (Subsidiary of Harley-Davidson, Inc.)
Core Industries: Financial Services, Motorcycle Financing
Key Achievements: Harley-Davidson Financial Services plays a crucial role in enabling customers to realize their dreams of owning and riding Harley-Davidson motorcycles.
The company provides flexible financing options, competitive rates, and personalized customer service to enhance the purchasing process and ownership journey.
Harley-Davidson Financial Services is committed to supporting the Harley-Davidson brand and fostering customer loyalty through its comprehensive financial solutions.
24. Acuity Insurance
Background: Acuity Insurance is a property and casualty insurance company headquartered in Sheboygan, Wisconsin, USA.
Founded in 1925, the company offers a wide range of insurance products, including auto, home, business, and liability coverage, to individuals and businesses across the United States.
Founded: 1925
Core Industries: Insurance, Financial Services
Key Achievements: Acuity Insurance is known for its exceptional customer service, industry-leading claims handling, and financial strength.
The company has received numerous awards and accolades for its performance and reliability, earning recognition as one of the top insurance companies in the nation.
Acuity Insurance is committed to protecting its policyholders’ assets and providing peace of mind through comprehensive insurance coverage and personalized risk management solutions.
25. Associated Banc-Corp
Background: Associated Banc-Corp is a diversified financial services company headquartered in Green Bay, Wisconsin, USA.
Founded in 1861, the company offers a wide range of banking, lending, wealth management, and insurance products and services to individuals, businesses, and institutions.
Founded: 1861
Core Industries: Banking, Financial Services, Wealth Management
Key Achievements: Associated Banc-Corp is committed to helping customers achieve their financial goals and navigate life’s milestones with confidence.
The company’s comprehensive suite of financial products and services is designed to meet the diverse needs of its clients, providing personalized solutions and expert guidance.
Associated Banc-Corp is known for its strong community presence, supporting local businesses and organizations through charitable giving and community development initiatives.
26. Wausau Paper
Background: Wausau Paper is a manufacturer of paper and tissue products, headquartered in Mosinee, Wisconsin, USA.
Founded in 1899, the company produces a variety of paper towels, tissue products, and specialty papers for commercial and consumer use.
Founded: 1899
Core Industries: Paper Manufacturing, Tissue Products
Key Achievements: Wausau Paper is known for its commitment to quality, sustainability, and innovation in the paper industry.
The company’s products are widely used in commercial settings, including office buildings, healthcare facilities, and foodservice establishments, as well as in households across the country.
Wausau Paper is dedicated to environmental stewardship, sourcing responsibly managed fibers and implementing eco-friendly manufacturing practices.
27. Uline
Background: Uline is a distributor of shipping, packaging, and industrial supplies, headquartered in Pleasant Prairie, Wisconsin, USA.
Founded in 1980 by Liz and Dick Uihlein, the company offers a comprehensive selection of products, including boxes, tape, bubble wrap, and warehouse equipment, to businesses and organizations worldwide.
Founded: 1980
Core Industries: Distribution, Packaging Supplies, Industrial Equipment
Key Achievements: Uline is known for its extensive product catalog, fast shipping, and excellent customer service, earning a reputation as a trusted partner for businesses’ packaging and supply needs.
The company’s distribution network and logistics capabilities enable it to deliver orders quickly and efficiently to customers across North America.
Uline is committed to providing high-quality products and value-added services to support its customers’ success.
28. Trek Bicycle Corporation
Background: Trek Bicycle Corporation is a leading manufacturer of bicycles and cycling products, headquartered in Waterloo, Wisconsin, USA.
Founded in 1976 by Richard Burke and Bevil Hogg, the company designs and produces a wide range of bicycles, components, and accessories for recreational and competitive cyclists.
Founded: 1976
Core Industries: Bicycle Manufacturing, Cycling Products
Key Achievements: Trek Bicycle Corporation is known for its innovation, performance, and commitment to the cycling community.
The company’s bicycles and equipment are designed and engineered with the latest technologies and materials to enhance the rider experience and performance.
Trek sponsors professional cycling teams and events worldwide, contributing to the growth and popularity of the sport.
Trek Bicycle Corporation is dedicated to promoting cycling as a healthy, sustainable mode of transportation and recreation.
29. Shopko
Background: Shopko was a retail chain headquartered in Green Bay, Wisconsin, USA, specializing in general merchandise and pharmacy products.
Founded in 1962 by James Ruben, the company operated department stores and pharmacies in the Midwest, Mountain, and Pacific Northwest regions of the United States.
Founded: 1962
Core Industries: Retail, Pharmacy
Key Achievements: Shopko served as a convenient shopping destination for consumers, offering a wide selection of everyday essentials, apparel, home goods, and healthcare products.
The company’s stores provided a one-stop shopping experience, combining retail and pharmacy services under one roof.
Shopko was committed to serving its local communities and supporting charitable organizations through philanthropy and community outreach programs.
30. Kwik Trip
Background: Kwik Trip is a chain of convenience stores headquartered in La Crosse, Wisconsin, USA.
Founded in 1965 by Don Zietlow, the company operates retail locations across Wisconsin, Minnesota, and Iowa, offering a variety of convenience items, fuel, and foodservice options.
Founded: 1965
Core Industries: Convenience Stores, Fuel, Foodservice
Key Achievements: Kwik Trip is known for its clean, well-stocked stores, friendly customer service, and fresh food offerings.
The company’s stores are popular destinations for travelers and local residents alike, providing a convenient place to refuel, grab a snack, or enjoy a meal on the go.
Kwik Trip is committed to quality and value, offering a range of affordable products and services to meet its customers’ needs.
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Conclusion
In conclusion, the companies based in Wisconsin represent a diverse array of industries, ranging from manufacturing and financial services to healthcare and retail.
These companies play integral roles in their respective sectors, driving innovation, economic growth, and community development in the state and beyond.
With a rich history of entrepreneurship and a commitment to excellence, Wisconsin’s largest companies continue to make significant contributions to the local economy and society at large.
Through their products, services, and corporate citizenship, these companies shape the landscape of Wisconsin and leave a lasting impact on the communities they serve.
