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Top 42 publicly traded companies in Wisconsin

Tamtam tracks 42 publicly traded companies headquartered in Wisconsin. This list ranks all of them by number of employees on LinkedIn, led by ManpowerGroup, Kohl's and Fiserv. Their median headcount is 2,226. Half of them were founded in 1962 or later. The most common headquarters are Milwaukee (17), Madison (5) and Brookfield (2).

๐Ÿ‡บ๐Ÿ‡ธ Wisconsin42 companiesUpdated Nov 2, 2026
#CompanyIndustryHeadquarters EmployeesFounded
1
ManpowerGroupmanpowergroup.com

Global workforce solutions company sourcing, assessing, and managing talent for organizations worldwide, while providing sustainable employment opportunities across various industries and skills

Staffing and Recruiting ๐Ÿ‡บ๐Ÿ‡ธ Milwaukee 72,454 1948
2
Kohl'skohls.com

Leading omnichannel retailer operating over eleven hundred stores and digital platforms, offering diverse brand portfolios and loyalty programs to millions of customers nationwide.

Retail ๐Ÿ‡บ๐Ÿ‡ธ Menomonee Falls 55,589 1962
3
Fiservfiserv.com

A global technology provider in financial services industry, specializing in payments, processing, risk & compliance, customer management, and business optimization

IT Services and IT Consulting ๐Ÿ‡บ๐Ÿ‡ธ Milwaukee 44,000 1984
4
Rockwell Automationrockwellautomation.com

It connects human imagination with technology potential, enhancing intelligence, connectivity, and productivity through recognized brands like Allen-Bradley and Rockwell Software.

Automation Machinery Manufacturing ๐Ÿ‡บ๐Ÿ‡ธ Milwaukee 22,584 n/a
5
A. O. Smith Corporationaosmith.com

Manufacturing and distributing residential and commercial water heaters and boilers with innovative, energy-efficient technology across global markets.

Manufacturing ๐Ÿ‡บ๐Ÿ‡ธ Milwaukee 14,023 1874
6
Quadquad.com

Global marketing experience company streamlining marketing complexities with state-of-the-art technology and data-driven solutions for brands to make direct consumer connections

Advertising Services ๐Ÿ‡บ๐Ÿ‡ธ Sussex 10,261 1971
7
Plexus Corp.plexus.com

A global leader in providing design, development, supply chain solutions, manufacturing, and aftermarket services for companies in complex industries since 1979

Appliances, Electrical, and Electronics Manufacturing ๐Ÿ‡บ๐Ÿ‡ธ Neenah 9,957 1979
8
First Data Corporationfiserv.com

A global leader in payments and financial technology, serving financial institutions, merchants, and businesses worldwide

IT Services and IT Consulting ๐Ÿ‡บ๐Ÿ‡ธ Brookfield 9,745 1984
9
Oshkosh Corporationoshkoshcorp.com

Design and manufacture advanced industrial equipment using electrification, autonomy, AI, and connectivity for tough jobs worldwide.

Motor Vehicle Manufacturing ๐Ÿ‡บ๐Ÿ‡ธ Oshkosh 7,170 1917
10
Snap-onsnapon.com

Global leader in designing, manufacturing, and marketing tools, equipment, diagnostics, and repair solutions for professionals across various industries worldwide

Machinery Manufacturing ๐Ÿ‡บ๐Ÿ‡ธ Kenosha 7,077 1920
11
Regal Rexnordmaintenance.regalrexnord.com

Global manufacturer of sustainable solutions for airflow, motion control, power transmission, and power generation in commercial, industrial, and residential settings Headquarters in Milwaukee, Wisconsin

Electric Power Transmission, Control, and Distribution ๐Ÿ‡บ๐Ÿ‡ธ Milwaukee 5,921 1955
12
Komatsu Miningkomatsu.com

Development and supply of technologies, equipment, and services for construction, mining, industrial, forestry, and forklift markets worldwide.

Mining ๐Ÿ‡บ๐Ÿ‡ธ Milwaukee 5,339 2017
13
Associated Bankassociatedbank.com

Provides comprehensive financial products and services through over 200 locations across Wisconsin, Illinois, Minnesota, and loan offices in several other states.

Financial Services ๐Ÿ‡บ๐Ÿ‡ธ Green Bay 5,089 1861
14
Brady Corporationbradyid.com

An international manufacturer providing complete solutions for identifying and protecting people, products, and places through labels, signs, safety devices, and software

Manufacturing ๐Ÿ‡บ๐Ÿ‡ธ Milwaukee 4,291 1914
15
Generacgenerac.com

Providing reliable, efficient energy solutions for homes, businesses, and critical infrastructure to ensure comfort, safety, and energy independence.

Electric Power Generation ๐Ÿ‡บ๐Ÿ‡ธ Waukesha 4,197 1959
16
TDSยฎtdsinc.com

Provides broadband internet, TV, phone services, wireless infrastructure leasing, and marketing solutions to urban, suburban, and rural U.S. communities.

Telecommunications ๐Ÿ‡บ๐Ÿ‡ธ Madison 3,980 1969
17
Lands'โ€‹ Endlandsend.com

Retail clothing, accessories, footwear, and home products through catalogs, online platforms, specialty websites, and physical retail locations.

Retail Apparel and Fashion ๐Ÿ‡บ๐Ÿ‡ธ Dodgeville 3,229 1963
18
Sensient Technologies Corporationsensient.com

Enhancing sensory experiences by developing specialized ingredients and technologies for colors, flavors, and extracts in industries worldwide

Food and Beverage Manufacturing ๐Ÿ‡บ๐Ÿ‡ธ Milwaukee 3,134 n/a
19
WEC Energy Groupwecenergygroup.com

Provides electric and natural gas services to millions of customers across multiple states, focusing on reliability, customer care, and operational efficiency.

Utilities ๐Ÿ‡บ๐Ÿ‡ธ Milwaukee 3,080 2015
20
Alliant Energyalliantenergy.com

Provides regulated electric and natural gas services to retail customers in Iowa and Wisconsin with focus on sustainability and community.

Utilities ๐Ÿ‡บ๐Ÿ‡ธ Madison 2,626 1917
21
Enerpac Tool Groupenerpactoolgroup.com

A global industrial tools and services company specializing in high-pressure hydraulic tools, controlled force products, and heavy load positioning solutions

Industrial Machinery Manufacturing ๐Ÿ‡บ๐Ÿ‡ธ Milwaukee 2,226 1910
22
Marten Transportmarten.com

A leading provider of refrigerated truckload, intermodal, and brokerage services in North America, focusing on reliability, savings, and customer satisfaction

Truck Transportation ๐Ÿ‡บ๐Ÿ‡ธ Mondovi 2,020 1946
23
Oshkosh Defenseoshkoshdefense.com

Design, production, and sustainment of heavy, medium, and light military vehicles plus mobility systems with global logistics and life cycle fleet support.

Defense and Space Manufacturing ๐Ÿ‡บ๐Ÿ‡ธ Oshkosh 1,610 1917
24
Badger Meterbadgermeter.com

It provides smart water solutions including flow measurement, water quality monitoring, and analytics to optimize operations for water utilities and industries.

Utilities ๐Ÿ‡บ๐Ÿ‡ธ Milwaukee 1,368 n/a
25
Johnson Outdoorsjohnsonoutdoors.com

Design and manufacture innovative fishing, diving, camping, and watercraft products that enhance outdoor experiences for enthusiasts worldwide.

Retail ๐Ÿ‡บ๐Ÿ‡ธ Racine 1,252 1970
26
MEC (Mayville Engineering Company, Inc.)mecinc.com

A leading manufacturing partner specializing in prototyping, fabrication, coating, assembly, and aftermarket components for various industries Operating across 20 facilities in seven states

Industrial Machinery Manufacturing ๐Ÿ‡บ๐Ÿ‡ธ Mayville 1,130 1945
27
Ksolves India Limitedksolves.com

AI-first software development for digital operations modernization and efficiency improvement. Expertise: AI, Big Data, Salesforce, DevOps, Odoo, custom solutions.

IT Services and IT Consulting ๐Ÿ‡บ๐Ÿ‡ธ Sheridan 895 2012
28
Douglas Dynamics, Inc.douglasdynamics.com

A leading manufacturer and upfitter of commercial work truck attachments and equipment, providing solutions for snow and ice control industries

Machinery Manufacturing ๐Ÿ‡บ๐Ÿ‡ธ Milwaukee 826 n/a
29
Strattec Security Corporationstrattec.com

A global leader in automotive security products, specializing in locks, keys, access control systems, and aftermarket support for customers worldwide

Motor Vehicle Manufacturing ๐Ÿ‡บ๐Ÿ‡ธ Milwaukee 687 1908
30
Artisan Partnersartisanpartners.com

Global investment platform offering diverse, high value-added multi-asset strategies managed by autonomous teams for sophisticated institutional clients.

Financial Services ๐Ÿ‡บ๐Ÿ‡ธ Milwaukee 637 1994
31
Fiserv Lending Solutionsfiserv.com

Stay updated on our latest news and developments by following us on LinkedIn for more insights and information

IT Services and IT Consulting ๐Ÿ‡บ๐Ÿ‡ธ Brookfield 525 1984
32
First Business Bankfirstbusiness.bank

A company offering business banking, private wealth management, bank consulting services, and total rewards for employees, committed to supporting communities

Financial Services ๐Ÿ‡บ๐Ÿ‡ธ Madison 485 1990
33
Aebi Schmidt USAaebi-schmidt.com

Global leader in providing intelligent solutions for clean and safe infrastructure, challenging terrains, and agricultural needs through a wide range of high-quality equipment and services

Machinery Manufacturing ๐Ÿ‡บ๐Ÿ‡ธ Chilton 401 n/a
34
Journal Broadcast Group (division of Journal Communications)journalcommunications.com

A diversified media company with operations in television, radio, publishing, and digital media, owning multiple stations and publications in various states

Broadcast Media Production and Distribution ๐Ÿ‡บ๐Ÿ‡ธ Milwaukee 400 1882
35
Zurnzurn.com

The company solves customer challenges by providing connected plumbing products for user safety, water efficiency, and control in buildings

Wholesale Building Materials ๐Ÿ‡บ๐Ÿ‡ธ Milwaukee 355 n/a
36
Enerpac Tool Group: Previously 'Actuant Corporation'enerpactoolgroup.com

Global industrial manufacturer offering high force industrial tools, position & motion control systems Transitioning to pure-play industrial tools & services company

Industrial Machinery Manufacturing ๐Ÿ‡บ๐Ÿ‡ธ Menomonee Falls 313 1910
37
Weyco Group, Inc.weycogroup.com

Designs and markets quality and innovative footwear for men, women, and children with well-recognized brand names sold worldwide through various retailers and concept stores

Retail Apparel and Fashion ๐Ÿ‡บ๐Ÿ‡ธ Glendale 250 n/a
38
Journal Communications, Inc.journalcommunications.com

A leading media company with publishing, broadcasting, digital media, and printing services, offering news and entertainment to local communities nationwide

Broadcast Media Production and Distribution ๐Ÿ‡บ๐Ÿ‡ธ Milwaukee 42 1882
39
American Risk Management Resources Network | ARMRarmr.net

Specialty insurance professionals offering innovative risk management solutions for environmental and specialty insurance challenges, with a focus on protecting natural resources for future generations

Insurance ๐Ÿ‡บ๐Ÿ‡ธ Madison 27 1999
40
Mosaic Financial Partnersmosaicfinancial.nm.com

This company helps successful individuals plan for a financially secure retirement by leveraging their assets to fulfill lifelong dreams and create a lasting legacy

Investment Management ๐Ÿ‡บ๐Ÿ‡ธ Whitefish Bay 25 2019
41
UIA Health Insurance Advisorsuiadvisors.com

Providing personalized health insurance plans, monitoring healthcare reform changes, offering ongoing education, and exceptional customer service for businesses and individuals

Insurance ๐Ÿ‡บ๐Ÿ‡ธ Menasha 7 1983
42
Berkeley Running Companyberkeleyrunningcompany.com

A premier specialty store in Madison for running and walking, offering top brands and products with exceptional customer service and passion for fitness

Sporting Goods Manufacturing ๐Ÿ‡บ๐Ÿ‡ธ Madison 3 n/a

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How this list is built

Every company on this list has a Tamtam company profile. The industry is the one the company gives on LinkedIn; categories such as SaaS or fintech are classified by Tamtam's AI from the company's website and LinkedIn page; and the headquarters city must match the company's own address. Companies are ranked by the number of employees on LinkedIn, and the list is refreshed every night. Classifications can be wrong, so treat the list as a starting point rather than an official ranking. Last updated Nov 2, 2026.

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