South Dakota Business Search

Find South Dakota business entities by name or registration number. Look up addresses, entity types, and company details for SD-registered LLCs, corporations, and more.

Top Companies in South Dakota

Largest South Dakota business entities by revenue. Filter by employee size or sort by different criteria.

Company NameEmailCountryCityAddress 1PhoneState/ProvincePostal CodeWebsiteFounding YearYearly Revenue in U.S. DollarsEmployees TotalBusiness Legal Type - DescriptionNumber of Companies in GroupCompany Registration Number
1
State Of South Dakota
*****@***.***
USA
Sioux Falls
5501 W 9th St
+** ********
Minnehaha
57107
siouxsteel.*****
2016
$5,382,668,000
5
N/A
N/A
N/A
2
Belle Fourche Regional Sr Care
******@****.***
USA
Belle Fourche
2200 13th Ave
+** *********
Butte
57717
regionalhealth.*****
N/A
$482,526,300
3
N/A
N/A
UB938689
3
Avera Health Plans, INC.
*******@*****.***
USA
Sioux Falls
3816 S Elmwood Ave Ste 100
+** ********
Minnehaha
57105
averahealthplans.*****
1999
$342,342,227
45
N/A
N/A
DB040961
4
Target National Bank
********@******.***
USA
Sioux Falls
3901 W 53rd St
+** *********
Minnehaha
57106
target.*****
2001
$296,317,000
91
N/A
N/A
N/A
5
Northwestern Energy Public Service CORPORATION
*********@*******.***
USA
Sioux Falls
3010 W 69th St
+** ********
Minnehaha
57108
northwesternenergy.*****
2023
$278,227,387
644
N/A
N/A
DB251847
6
Sanford Health Foundation
**********@********.***
USA
Sioux Falls
1305 W 18th St
+** *********
Minnehaha
57117
sanfordhealth.*****
1983
$191,125,295
10
N/A
N/A
NS007723
7
South Dakota Housing Development Authority
***********@***.***
USA
Pierre
3060 E Elizabeth St
+** ********
Hughes
57501
sdhda.*****
2007
$159,176,878
65
N/A
N/A
N/A
8
Rosenbauer South Dakota, LLC
************@****.***
USA
Lyons
100 3rd St
+** *********
Minnehaha
57041
rosenbaueramerica.*****
1998
$158,318,558
335
N/A
N/A
2011022200023
9
Heart Hospital Of South Dakota, LLC
*****@*****.***
USA
Sioux Falls
4500 W 69th St
+** ********
Minnehaha
57108
avera.*****
1999
$139,002,757
400
N/A
N/A
0496192
10
Sioux Falls Area Community Foundation, INC.
******@******.***
USA
Sioux Falls
200 Cherapa Pl
+** *********
Minnehaha
57103
sfacf.*****
1984
$106,816,971
10
N/A
N/A
NS008016
Download 189,835 Companies
South Dakota-Companies.csv

South Dakota Business Entity Search

Looking up a South Dakota business entity? Our database lets you search by company name or registration number and get instant results — including the company's registered address, entity type (LLC, Corporation, etc.), founding year, industry classification, and employee count.

This is a faster alternative to the South Dakota Secretary of State's official filing database, with additional data fields like revenue estimates and corporate hierarchy that state registries don't provide. Results cover both active and inactive entities.

What you can look up

  • Registered business address
  • Entity type (LLC, Corp, LP, etc.)
  • Registration / filing number
  • Founding year & status
  • Industry classification (SIC/NAICS)

Additional data available

  • Employee count & revenue estimates
  • Corporate hierarchy & parent company
  • Email & phone (with data license)
  • Website & trade names
  • Bulk export to CSV

Related searches

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