Companies in Madison

Behind every street in Madison sits a business. 100,636 of them, to be exact, all registered in the United States business register. The biggest single industry is general business services with 5,710 companies, roughly 6% of everything that does business in the city.

100,636 businesses indexed

State Of WisconsinState Of Wisconsin
Showing 25 of 100,636 companies
Company NameCountryCityAddress 1State/ProvincePostal CodeWebsiteFounding YearYearly Revenue in U.S. DollarsEmployees TotalBusiness Legal Type - DescriptionNumber of Companies in GroupCompany Registration Number
1
State Of Wisconsin
USA
Madison
115 E Capitol
Dane
53702-0021
wisgov.*****
1848
$43,168,599,000
35,522
Corporation
2231
N/A
2
American Family Mutual Insurance Company, S.I.
USA
Madison
6000 American Pkwy
Dane
53783
amfam.*****
1927
$11,040,696,900
8,100
Corporation
160
N/A
3
Anywhere Real Estate INC.
USA
Madison
175 Park Ave
Morris
07940-1123
realogy.*****
2026
$5,692,000,000
2,570
Corporation
1418
4267926
4
University Of Wisconsin Hospitals And Clinics Authority
USA
Madison
600 Highland Ave
Dane
53792-3284
uwhealth.*****
1996
$4,465,022,000
1,350
Corporation
137
N/A
5
Alliant Energy CORPORATION
USA
Madison
4902 N Biltmore Ln Ste 1000
Dane
53718-2148
alliantenergy.*****
1917
$4,362,000,000
4,943
Corporation
130
1 W16737
6
Cuna Mutual Holding Company
USA
Madison
5910 Mineral Point Rd
Dane
53705-4498
trustage.*****
2022
$2,731,725,395
4,000
Corporation
114
N/A
7
Trustage Financial Group, INC.
USA
Madison
5910 Mineral Point Rd
Dane
53705-4456
trustage.*****
2012
$2,731,725,395
4,000
Corporation
114
426222
8
Cmfg Life Insurance Company
USA
Madison
5910 Mineral Point Rd
Dane
53705-4456
cunamutual.*****
1935
$2,696,792,483
4,000
Corporation
114
345374
9
Progressive Northern Insurance CO
USA
Madison
44 E Mifflin St
Dane
53703-2821
N/A
2003
$2,498,722,741
10
Corporation
364
N/A
10
Wisconsin Power And Light CO
USA
Madison
4902 N Biltmore Ln Ste 1000
Dane
53718-2148
alliantenergy.*****
1917
$2,065,000,000
992
Corporation
130
1 W03604
11
Anywhere Real Estate Group LLC
USA
Madison
175 Park Ave
Morris
07940-1123
realogy.*****
2006
$1,887,555,865
7,904
Corporation
1418
4099368
12
University Of Wisconsin System (INC)
USA
Madison
1220 Linden Dr Fl 17
Dane
53706
wisconsin.*****
2000
$1,405,812,654
500
Corporation
2231
N/A
13
Vertex Aerospace Services CORP.
USA
Madison
555 Industrial Dr S
Madison
39110-9072
gov2x.*****
2018
$1,324,477,672
4,000
Corporation
152
6861377
14
Certco, INC.
USA
Madison
5321 Verona Rd
Dane
53711-6050
certcoinc.*****
1975
$1,047,239,351
325
Corporation
3
1 C13849
15
Stephen Gould CORPORATION
USA
Madison
5 Giralda Farms
Morris
07940-1027
stephengould.*****
1958
$930,937,000
512
Corporation
51
8568895000
16
Ssm Health Care Of Wisconsin, INC.
USA
Madison
1808 W Beltline Hwy
Dane
53713-2334
ssmhealth.*****
1999
$770,222,978
3,000
Corporation
260
430688874
17
Madison Gas And Electric Company
USA
Madison
133 S Blair St
Dane
53788-0002
mgeenergy.*****
1896
$743,654,000
726
Corporation
14
1 M00917
18
Mge Energy, INC.
USA
Madison
133 S Blair St
Dane
53788-0001
mgeenergy.*****
1896
$743,654,000
726
Corporation
14
M 055434
19
Promega CORPORATION
USA
Madison
2800 Woods Hollow Rd
Dane
53711-5399
promega.*****
1980
$690,571,000
2,092
Corporation
29
1 B16353
20
City Of Madison
USA
Madison
210 Martin Luther King Jr Blvd
Dane
53703-3340
cityofmadison.*****
1856
$648,775,237
2,918
Corporation
84
N/A
21
County Of Dane
USA
Madison
210 Martin Luther King Jr Blvd Rm 106a
Dane
53703-3342
countyofdane.*****
1836
$645,332,336
1,568
Corporation
74
N/A
22
ST. Mary's Hospital
USA
Madison
700 S Park St
Dane
53715-1893
ssmhealth.*****
1927
$611,069,813
2,797
Corporation
260
6 S18451
23
Meriter Hospital, INC.
USA
Madison
202 S Park St
Dane
53715
unitypoint.*****
1898
$593,541,920
2,548
Corporation
236
6 M18136
24
Wisconsin Physicians Service Insurance CORPORATION
USA
Madison
1717 W Broadway
Dane
53713-1834
wpshealth.*****
1977
$565,856,350
2,801
Corporation
17
391268299
25
Group Health Co-Operative Of South Central Wisconsin
USA
Madison
1265 John Q Hammons Dr Ste 200
Dane
53717-1962
ghcscw.*****
1972
$531,649,516
500
Corporation
11
3 G06760

Showing 25 of 100,636 companies

Request Free Sample

Largest industries in Madison

The biggest industry groups in Madison by registered company count, with the top five companies by revenue in each.

General business services

5,710 companies

SIC 7389

View all 5,710 in our tool →

Operators of Nonresidential Buildings

3,092 companies

SIC 6512

View all 3,092 in our tool →

Business Consulting Services, Not Elsewhere Classified

3,089 companies

SIC 8748

View all 3,089 in our tool →

Restaurants and eating places

2,765 companies

SIC 5812

View all 2,765 in our tool →

Real estate agents and managers

2,451 companies

SIC 6531

View all 2,451 in our tool →

General Contractors-Single-Family Houses

1,993 companies

SIC 1521

View all 1,993 in our tool →

Investors, Not Elsewhere Classified

1,723 companies

SIC 6799

View all 1,723 in our tool →

Religious Organizations

1,447 companies

SIC 8661

View all 1,447 in our tool →

All industries in Madison

Together, general business services, Operators of Nonresidential Buildings and Business Consulting Services, Not Elsewhere Classified make up the top three industries in Madison, accounting for 12% of the city's commercial activity. The oldest company we can find in Madison is Madison United Methodist Church, founded in 1797, with Coneross Baptist Church not far behind. They're still here, along with hundreds of thousands of others.

State government and a big research university set the rhythm in Madison, feeding a steady crop of labs, software firms and biotech startups around the lakes. All of them are in our data. Search Madison businesses in the live tool below, get the full list delivered as an Excel file, or pull the records straight into your own systems through our API.

100,636companies
  • Nonclassifiable Establishments17,525
  • Business Services, Not Elsewhere Classified5,710
  • Operators of Nonresidential Buildings3,092
  • Business Consulting Services, Not Elsewhere Classified3,089
  • Eating Places2,765
  • Real Estate Agents and Managers2,451
  • General Contractors-Single-Family Houses1,993
  • Investors, Not Elsewhere Classified1,723
  • Religious Organizations1,447
  • Management Consulting Services1,443
  • Other industries59,398

How you receive Madison business data

Choose the delivery method that fits your workflow. Every record includes 50+ fields per legal entity, sourced from official United States business registers.

Excel / CSV download

Custom-built Madison directory in Excel or CSV. Filter by industry, employee size, or revenue. Delivered within 24 hours.

Request a directory

API access

Stream Madison company data directly into your CRM, marketing stack, or analytics pipeline. JSON, REST, 50+ fields per record.

Discover the API

Live search tool

Search Madison companies in our online tool with filters for industry, size, revenue and SIC code. Export your selection.

Open the search tool

Frequently Asked Questions

Common questions about searching, filtering, and ordering Madison company data.

Our Madison business directory currently lists every registered legal entity with a Madison address in the official United States business register. The exact count is shown live at the top of this page.
Madison records are sourced directly from the official United States business register and enriched with 50+ data points: revenue, employees, industry codes, contact details, and ownership.
Core registry fields are refreshed weekly. Enriched fields (revenue, employees, contact) are refreshed monthly so your Madison list never goes stale.
Yes. Every Madison record is tagged with SIC industry codes. You can request your directory filtered by one or several SIC codes, employee size bands, or revenue thresholds.
Excel (.xlsx), CSV, and JSON. For API customers, data is streamed as paginated JSON. Custom formats (Parquet, SQL dump) are available on request.
Yes. We only deliver legal-entity data and publicly listed business contact details. We do not include personal data of natural persons unless required by the company register itself (e.g. sole traders).
Yes. Request a free 100-record sample of Madison data and we will email it within one business day.
Yes. The full Madison dataset is available through our REST API with the same filters as our directory builder. See our API page for pricing tiers.
Standard Excel and CSV directories are delivered within 24 hours. API access is provisioned within one business day. Rush delivery (same-day) is available on request.
Snapshot data going back 3 years is available for most fields, and 7+ years for core registry fields. Useful for trend analysis and churn studies - ask for a custom quote.

Need a custom Madison directory?

Tell us which industry, region or company size you need. We'll send a tailored export within 24 hours.

Request a quote
+31 20 705 2360