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The 100 largest companies in Madison

Tamtam tracks 230 companies headquartered in Madison. This list ranks the 100 largest by number of employees on LinkedIn, led by Coldwell Banker, Coldwell Banker Realty and CENTURY 21®. Their median headcount is 1,070. Half of them were founded in 1956 or later.

🇺🇸 Madison100 companiesUpdated Oct 24, 2026
#CompanyIndustryHeadquarters EmployeesFounded
1
Coldwell Bankercoldwellbanker.com

Real estate company providing property listings, professional agents, and customer support to assist buyers and sellers throughout transactions.

Real Estate 🇺🇸 Madison 100,000 1906
2
Coldwell Banker Realtycoldwellbankerhomes.com

A leading real estate brokerage with 55,000 agents across 50 markets in the US, part of a global brand operated by Anywhere Real Estate Inc

Real Estate 🇺🇸 Madison 44,775 n/a
3
CENTURY 21®century21.com

Network of over 140,000 real estate agents across 81 countries, providing extensive property services and market expertise worldwide.

Real Estate 🇺🇸 Madison 39,788 n/a
4
University of Wisconsin-Madisonwisc.edu

A prestigious public university in Madison, offering a wide range of liberal arts studies, professional programs, and student activities on a sprawling campus

Higher Education 🇺🇸 Madison 30,836 n/a
5
American Family Insuranceamfam.com

Providing insurance products and services with a focus on fairness, integrity, exceptional claims experience, and building long-term customer relationships.

Insurance 🇺🇸 Madison 18,898 1927
6
Anywhere Real Estate Inc.anywhere.re

Leading integrated residential real estate services including franchise, brokerage, relocation, title, mortgage, and technology support for global agents.

Real Estate 🇺🇸 Madison 10,320 n/a
7
UW Healthuwhealth.org

Integrated academic health system operating multiple hospitals and clinics, providing care to over 832,000 patients annually in Wisconsin and Illinois.

Hospitals and Health Care 🇺🇸 Madison 10,155 n/a
8
State of Wisconsinwisc.jobs

The State of Wisconsin Government is an Equal Opportunity Employer with diverse talent, providing professional opportunities in the public sector

Government Administration 🇺🇸 Madison 7,738 1848
9
Sotheby's International Realtysothebysrealty.com

Network of independent luxury real estate brokerages providing marketing, referrals, and support to prestigious clientele worldwide.

Real Estate 🇺🇸 Madison 7,585 1976
10
Exact Sciencesexactsciences.com

Development of cancer prevention and early detection solutions, guiding personalized treatment to help eradicate cancer and improve patient outcomes.

Biotechnology Research 🇺🇸 Madison 5,321 n/a
11
Fairway Independent Mortgage Corporationfairwayindependentmc.com

Fairway Independent Mortgage Corporation provides personalized mortgage services nationwide with a focus on fast turn times and exceptional customer service

Financial Services 🇺🇸 Madison 4,972 1996
12
Hexagon Asset Lifecycle Intelligencehexagon.com

Empowers customers to design, construct, and operate industrial facilities through data unlocking, digital maturity acceleration, and productivity tools for safer, sustainable global operations.

Software Development 🇺🇸 Madison 4,446 n/a
13
TDS®tdsinc.com

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

Telecommunications 🇺🇸 Madison 3,980 1969
14
ERA Real Estateera.com

A brand focused on supporting and empowering local agents and brokers in the real estate industry to stay ahead of the game

Real Estate 🇺🇸 Madison 3,678 1972
15
Better Homes and Gardens Real Estatebhgre.com

A real estate brand with over 100 years of inspiration and professionalism, helping clients buy and sell homes with passion and excellence

Real Estate 🇺🇸 Madison 3,151 n/a
16
Madison Metropolitan School Districtmadison.k12.wi.us

A school district serving over 27,000 students in 49 schools, providing education from kindergarten to high school with a focus on college and career readiness

Primary and Secondary Education 🇺🇸 Madison 3,048 1838
17
Octaveoctave.com

Develops software turning operational data into insights for improving asset design, operation, safety, and resilience in critical industries.

Technology, Information and Internet 🇺🇸 Madison 2,991 n/a
18
TDS Telecommunications LLCtdstelecom.com

Provides high-speed internet, TV entertainment, phone services, VoIP solutions, and data networking to urban, suburban, and rural communities.

Telecommunications 🇺🇸 Madison 2,985 1969
19
Madison Area Technical Collegemadisoncollege.edu

A diverse educational institution offering 180+ career programs, transfer options, online classes, and a strong job placement rate, with a focus on community engagement and inclusivity

Higher Education 🇺🇸 Madison 2,695 n/a
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 🇺🇸 Madison 2,626 1917
21
TruStagetrustage.com

Financially strong insurance, investment, and technology provider dedicated to helping people make confident financial decisions at every stage of life

Financial Services 🇺🇸 Madison 2,538 1935
22
Nordic Globalnordicglobal.com

Strategic partner for healthcare providers offering advisory, managed services, implementation, staffing, and ERP to modernize health IT systems globally.

IT Services and IT Consulting 🇺🇸 Madison 2,519 2010
23
UnityPoint Health – Meriterunitypoint.org

UnityPoint Health - Meriter provides high-quality healthcare services, including hospital care, clinics, home health care, laboratories, and community philanthropic activities in Wisconsin

Hospitals and Health Care 🇺🇸 Madison 2,390 1898
24
WPS—A health solutions companywpshealthsolutions.com

A government contractor and insurance industry leader offering affordable health plans, benefits administration, and Medicare services to individuals, businesses, veterans, and military

Insurance 🇺🇸 Madison 2,019 1946
25
Davita Dialysis

Provider of dialysis treatments and support services for patients with chronic kidney failure, also known as end-stage renal disease (ESRD)

Hospitals and Health Care 🇺🇸 Madison 2,011 n/a
26
Coldwell Banker Commercialcbcworldwide.com

A global leader in commercial real estate, providing brokerage, relocation, and settlement services through a network of affiliates worldwide

Real Estate 🇺🇸 Madison 2,007 1906
27
Promega Corporationpromega.com

Promega Corporation collaborates globally to develop innovative technologies in the life sciences, fostering creativity, sustainability, and meaningful connections with customers

Biotechnology Research 🇺🇸 Madison 1,991 1978
28
Wisconsin Department of Natural Resources (DNR)dnr.wisconsin.gov

Preservation, protection, and management of Wisconsin's natural resources, enforcing laws, and providing outdoor recreational opportunities.

Environmental Services 🇺🇸 Madison 1,956 n/a
29
Coldwell Banker Commercialcbcworldwide.com

A global leader in commercial real estate, offering services through a network of affiliates to provide value and opportunities to clients worldwide

Real Estate 🇺🇸 Madison 1,873 1906
30
Wisconsin Department of Health Servicesdhs.wisconsin.gov

Protect and promote health and safety of Wisconsin residents through collaboration, innovation, addressing disparities, and responsible resource management.

Government Administration 🇺🇸 Madison 1,862 1891
31
City of Madison, WIcityofmadison.com

Provides diverse public sector jobs supporting city residents through various departments, emphasizing customer service, equity, teamwork, and continuous improvement.

Government Administration 🇺🇸 Madison 1,840 1836
32
CUNA Mutual Groupcunamutual.com

Financially strong insurance, investment, and financial services company focused on creating a more equitable financial system through community engagement and products

Financial Services 🇺🇸 Madison 1,816 1934
33
Sub-Zero Group, Inc.subzero-wolf.com

Family-owned manufacturer producing professional-grade refrigeration, cooking, and dishwashing appliances designed for long-lasting performance, precision craftsmanship, and food preservation in high-end residential kitchens.

Manufacturing 🇺🇸 Madison 1,775 1945
34
Navitus Health Solutionsnavitus.com

A purpose-driven pharmacy benefit manager focused on reducing costs in the drug supply chain to make medications more affordable

Hospitals and Health Care 🇺🇸 Madison 1,667 2003
35
Wisconsin Department of Transportationwisconsindot.gov

This organization focuses on planning, building, and maintaining transportation networks in Wisconsin, including highways, public transit, air, rail, water, bicycle, and pedestrian facilities

Government Administration 🇺🇸 Madison 1,662 n/a
36
NRTnrtllc.com

A leading residential real estate brokerage firm with nationally ranked offices offering exceptional service to customers and communities

Real Estate 🇺🇸 Madison 1,640 n/a
37
Intergraphhexagon.com

A global provider of enterprise engineering software for smarter design and operations in plants, ships, and offshore facilities, alongside mission-critical solutions for governments

Software Development 🇺🇸 Madison 1,623 n/a
38
InterVarsity Christian Fellowship/USAintervarsity.org

Engages college students and faculty across U.S. campuses to share the Gospel, build Christian communities, and develop world changers.

Religious Institutions 🇺🇸 Madison 1,614 1941
39
Wisconsin Department of Correctionsdoc.wi.gov

A commitment to public safety and rehabilitation through custody, supervision, and collaboration with community partners in the criminal justice system

Government Administration 🇺🇸 Madison 1,613 1853
40
First Weberfirstweber.com

A comprehensive source of real estate information in Wisconsin with 50+ offices and local realtors, offering career opportunities in real estate

Real Estate 🇺🇸 Madison 1,554 n/a
41
CENTURY 21 Affiliatedc21affiliated.com

A leading real estate organization offering top-notch services, unmatched quality, and innovative solutions to guide clients in making excellent real estate decisions

Real Estate 🇺🇸 Madison 1,547 1978
42
UW School of Medicine and Public Healthmed.wisc.edu

Advancing health equity through patient care, education, and research to promote healthy individuals and communities in Madison, WI

Higher Education 🇺🇸 Madison 1,472 1907
43
Hexagon Safety, Infrastructure & Geospatialhexagon.com

Global leader in digital reality solutions, leveraging sensor, software, and autonomous technologies to enhance efficiency, productivity, safety across various industries

Software Development 🇺🇸 Madison 1,384 n/a
44
University of Wisconsin Hospital and Clinicsuwhealth.org

A prestigious academic medical center with 471 beds, specializing in cancer treatment, pediatrics, ophthalmology, surgical specialties, and organ transplantation

Hospitals and Health Care 🇺🇸 Madison 1,378 n/a
45
Wisconsin Army National Guardng.wi.gov

The Wisconsin Army National Guard consists of approximately 7,700 soldiers spread throughout 67 communities in Wisconsin, with both federal and state missions

Armed Forces 🇺🇸 Madison 1,341 1879
46
WPS Health Insurancewpshealth.com

A leading health insurance provider in Wisconsin offering PPO and HDHP plans, Medicare supplement options, and comprehensive provider networks

Insurance 🇺🇸 Madison 1,274 1946
47
SSM Health St. Mary’s Hospital – Madisonstmarysmadison.com

Medical facility offering comprehensive healthcare services in South Central Wisconsin since 1912, including inpatient, outpatient, and specialty care

Hospitals and Health Care 🇺🇸 Madison 1,201 n/a
48
Dean Clinicssmhealth.com

Integrated healthcare organization based in Madison, Wisconsin, providing medical services, health insurance, ancillary services, and eye care across southern Wisconsin

Hospitals and Health Care 🇺🇸 Madison 1,097 1904
49
IMSims.net

A web content management company based in Madison, WI, offering the Neptune WCM platform to create exceptional customer experiences for various industries

Technology, Information and Internet 🇺🇸 Madison 1,088 1995
50
Drew Universitydrew.edu

A Phi Beta Kappa liberal arts university offering undergraduate and graduate degrees, dedicated to exceptional faculty mentorship and experiential learning

Higher Education 🇺🇸 Madison 1,070 1867
51
Affiliated Engineers, Inc.aeieng.com

Engineering leadership in complex projects for buildings, energy, and utilities, delivering high-performance systems that positively impact society and improve the world

Professional Services 🇺🇸 Madison 1,065 1978
52
Accurayaccuray.com

Passionate about advancing radiation therapy to enhance patient outcomes Specializing in CyberKnife, Radixact, and TomoTherapy technologies for improved treatment options

Medical Equipment Manufacturing 🇺🇸 Madison 1,060 1990
53
Stephen Gouldstephengould.com

A leading packaging organization offering design, production, supply chain management, and logistics services with a people-first approach and global reach

Packaging and Containers Manufacturing 🇺🇸 Madison 1,004 1939
54
Hood Packaging Corporationhoodpkg.com

A leading manufacturer of packaging materials with 23 production facilities in the US and Canada, specializing in Paper, Plastic, and Woven packaging substrates

Packaging and Containers Manufacturing 🇺🇸 Madison 1,002 n/a
55
Edgewood Universityedgewood.edu

A college rooted in the Dominican tradition, educating students for ethical leadership, service, and a lifelong search for truth Networking opportunities available

Higher Education 🇺🇸 Madison 913 1927
56
Mesa Associates, Incmesainc.com

Full service engineering firm specializing in serving electric utility, industrial, and government clients with expertise in power delivery and various engineering disciplines since 1988

Engineering Services 🇺🇸 Madison 882 1988
57
Dakota State Universitydsu.edu

An educational institution offering undergraduate, master's, and doctoral programs with a focus on computing, information technologies, and cybersecurity research and development

Higher Education 🇺🇸 Madison 842 1881
58
Wisconsin Department of Workforce Developmentdwd.wisconsin.gov

The organization focuses on workforce development in Wisconsin through job services, training, employment assistance, and supporting employers in filling job openings

Government Administration 🇺🇸 Madison 824 1996
59
UW Credit Unionuwcu.org

A financial institution dedicated to putting members first, with a compassionate culture, professional development, and a focus on work-life balance

Banking 🇺🇸 Madison 812 1931
60
Summit Credit Unionsummitcreditunion.com

Empowering individuals to improve financial well-being through honest advice, building relationships, and providing real solutions as a not-for-profit financial cooperative

Banking 🇺🇸 Madison 782 1935
61
About Face Modelsaboutfacemodels.com

A nationwide model, talent, and staffing agency hand-selecting top models to meet client needs, delivering maximum brand awareness and exceptional customer service

Staffing and Recruiting 🇺🇸 Madison 779 2010
62
Shopbopshopbop.com

Global online fashion retailer offering curated selection of apparel and accessories from top designers, with daily new arrivals, editorial content, and world-class customer service

Retail 🇺🇸 Madison 755 n/a
63
The Vertex Companygov2x.com

Global aerospace company providing rotary and fixed-wing aircraft maintenance and logistical solutions for government and private sector customers Strong military support and high veteran employee rate

Defense and Space Manufacturing 🇺🇸 Madison 734 1975
64
Realogyanywhere.re

Realogy's new identity as Anywhere Real Estate Inc emphasizes their evolution towards a modern, flexible approach to real estate services

Real Estate 🇺🇸 Madison 729 n/a
65
Wisconsin Department of Revenuerevenue.wi.gov

This agency administers various tax laws, assists local governments, estimates state revenues, administers the Wisconsin Lottery, and employs various specialists

Government Administration 🇺🇸 Madison 718 n/a
66
SunCrest Healthcarelhcgroup.com

SunCrest Healthcare provides Medicare/Medicaid-certified home health care services in the Southern US, focusing on partnerships with local healthcare communities

Hospitals and Health Care 🇺🇸 Madison 688 2005
67
TASC (Total Administrative Services Corporation)tasconline.com

Nationwide administrator of tax-advantaged health benefits plans, offering innovative tools and outstanding service to businesses of all sizes

Financial Services 🇺🇸 Madison 668 1975
68
Wisconsin State Public Defenderwispd.gov

The company provides legal representation for low-income individuals throughout Wisconsin's 72 counties, with multiple trial and appellate offices

Law Practice 🇺🇸 Madison 655 1977
69
St. John the Baptist Catholic Churchstjohnscatholic.wixsite.com

A Catholic Church in Madison, Alabama, under the Diocese of Birmingham, providing religious services and community support

Religious Institutions 🇺🇸 Madison 654 1974
70
Hexagon Safety & Infrastructurehexagonsafetyinfrastructure.com

Global leader in digital reality solutions, combining sensor, software, and autonomous technologies to boost efficiency, productivity, quality, and safety across various industries

Software Development 🇺🇸 Madison 652 n/a
71
Morgan County Charter Schoolsmorgan.k12.ga.us

Specializing in providing innovative solutions and services to clients, One Morgan takes a comprehensive approach to meeting business needs

Education Administration Programs 🇺🇸 Madison 651 n/a
72
zukuezuku.com

A US-based company offering a platform for mobile messaging to build private networks, enable anonymous two-way interaction, and provide audience response capabilities

Technology, Information and Internet 🇺🇸 Madison 649 2006
73
Food Manufacturingfoodmanufacturing.com

Provider of food industry news, including recalls, safety, quality control, operational trends, maintenance practices, and product information for purchasing decisions

Book and Periodical Publishing 🇺🇸 Madison 643 n/a
74
Facultefaculte.com

The company specializes in simplifying and enhancing communication for e-learning, marketing, sales, online training, and business communications through user-friendly platforms

E-Learning Providers 🇺🇸 Madison 642 2007
75
University of Wisconsin-Extensionextension.wisc.edu

Statewide access to university resources for lifelong learning and success, including continuing education, cooperative extension, business support, and media innovations

Education Administration Programs 🇺🇸 Madison 642 n/a
76
DeliverHealthai.deliverhealth.com

A software and technology company specializing in revenue cycle management, clinical documentation, and digital health solutions to reduce burdens and improve care

Hospitals and Health Care 🇺🇸 Madison 634 2021
77
Grote Industriesgrote.com

A leading manufacturer supplying lighting products and safety systems for heavy duty vehicles, industries, and military applications worldwide

Motor Vehicle Manufacturing 🇺🇸 Madison 612 1901
78
Findorfffindorff.com

A trusted construction company with over 130 years of experience, dedicated to serving clients, employees, and the community through top-quality craftsmanship and services

Construction 🇺🇸 Madison 600 1890
79
Wisconsin Early Autism Projectwiautism.com

A world-renowned leader in early behavioral treatment for children with autism, offering one-on-one therapy to help them communicate, play, and live more independently

Mental Health Care 🇺🇸 Madison 590 1995
80
Madison Gas and Electricmge.com

Regulated natural gas and electric utility serving Dane County and surrounding areas, committed to providing energy to the community since 1855

Utilities 🇺🇸 Madison 579 1896
81
M3 Insurancem3ins.com

A leading insurance broker and risk management firm in America, providing world-class resources for managing risk, purchasing insurance, and offering employee benefits

Insurance 🇺🇸 Madison 567 1968
82
SVA | A Professional Services Companysva.com

A highly diversified professional services provider offering expert consulting and certified public accounting services to help clients achieve their individual and business goals

Financial Services 🇺🇸 Madison 560 1974
83
Wisconsin Foundation and Alumni Associationuwalumni.com

Connecting UW-Madison alumni, the company enriches lives, advances the university, and provides opportunities for talented individuals in various departments

Higher Education 🇺🇸 Madison 560 1861
84
Wisconsin Department of Public Instructiondpi.wi.gov

A state agency in Wisconsin that supports public schools, libraries, and students through services like education support, budgeting, and information technology

Government Administration 🇺🇸 Madison 544 1848
85
AprilAireaprilaire.com

A Wisconsin-based company providing Indoor Air Quality solutions since 1938, specializing in humidifiers, air cleaners, dehumidifiers, thermostats, ventilation, and comfort control systems

Manufacturing 🇺🇸 Madison 538 1938
86
Gordon Flesch Companygflesch.com

Office technology solutions provider specializing in integrating business applications and multifunction devices to boost productivity, reduce waste, save money, and support various industries and communities

Business Supplies & Equipment 🇺🇸 Madison 525 1956
87
Group Health Cooperative of South Central Wisconsinghcscw.com

Not-for-profit organization providing insurance, primary care, specialty care, and integrated health services through nationally-ranked clinics and networks.

Hospitals and Health Care 🇺🇸 Madison 516 1976
88
Wisconsin School of Businessbusiness.wisc.edu

A prestigious institution offering a wide range of business education programs, including precollege, undergraduate, master's, MBA, and professional development

Higher Education 🇺🇸 Madison 513 1900
89
Recreation & Wellbeing at the University of Wisconsin-Madisonrecwell.wisc.edu

This company promotes fitness, wellbeing, and community through inclusive and innovative initiatives for students, encouraging healthy habits and active living

Recreational Facilities 🇺🇸 Madison 510 n/a
90
First Supply LLCfirstsupply.com

Main channel distributor providing industrial customers and building contractors with a diverse range of products and services in plumbing, heating, air conditioning, and more

Wholesale 🇺🇸 Madison 508 1897
91
Delvedelve.com

A multidisciplinary product innovation firm guiding clients through complexities, delivering sustainable success with expertise in research, strategy, design, and engineering

Design Services 🇺🇸 Madison 499 1967
92
Agraceagrace.org

A nationally recognized nonprofit providing hospice care, supportive services, adult day care, senior care, and grief support in southern Wisconsin

Hospitals and Health Care 🇺🇸 Madison 498 1978
93
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 🇺🇸 Madison 485 1990
94
RE/MAX Preferredlinktr.ee

A real estate company in Greater Madison prioritizes client needs by providing excellent service through integrity, market knowledge, and advanced technology

Real Estate 🇺🇸 Madison 478 1973
95
Universities of Wisconsinwisconsin.edu

A coalition of 13 universities in Wisconsin working together towards a shared goal of preparing the state for the future

Higher Education 🇺🇸 Madison 468 1971
96
Mad City Windows & Bathsmadcitywindows.com

A family-owned business since 1998, dedicated to providing high-quality workmanship and excellent customer service for windows and doors

Construction 🇺🇸 Madison 465 1998
97
Wisconsin Athleticsuwbadgers.com

The Division of Intercollegiate Athletics at a university in Wisconsin offers student-athletes opportunities for athletic, academic, and social development while prioritizing integrity and accountability

Spectator Sports 🇺🇸 Madison 462 n/a
98
Wisconsin Unionunion.wisc.edu

Provides recreational, cultural, educational, and social opportunities for students, faculty, staff, and guests at two campus locations.

Education Administration Programs 🇺🇸 Madison 457 n/a
99
Strand Associates, Inc.®strand.com

Provides consulting engineering services including municipal, wastewater, water, transportation, and structural, focusing on infrastructure design and sustainable solutions for public and private sectors.

Civil Engineering 🇺🇸 Madison 454 1946
100
Great Lakes Higher Education Corporation and Affiliatesmygreatlakes.org

Provider of support in higher education, simplifying financial aid processes and making college affordability a reality Mission-driven, caring for students and employees

Financial Services 🇺🇸 Madison 442 1967

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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 Oct 24, 2026.

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