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118,727 companies in South Dakota.
Discover 118,727 companies headquartered in South Dakota, spanning manufacturing, construction, and industrial sectors. Browse by city — including Sioux Falls, Rapid City, Industrial & mechanical in South Dakota or by industry, and open any profile for its location, website, size, and NAICS/SIC classification.
Largest South Dakota companies by revenue
The highest-revenue companies in this directory. Open any profile for its full firmographics.
| # | Company | Location | Employees | Revenue |
|---|---|---|---|---|
| 1 | Citibank NA | Sioux Falls | 180,607 | $114.8B |
| 2 | Rodgers Family Pharmacy | Yankton | 100,000 | $10B |
| 3 | Alignment Technologies Inc | Jefferson | 50,000 | $10B |
| 4 | Terex Utilities | Watertown | 10,000 | $10B |
| 5 | Avera Sacred Heart Hospital | Yankton | 5,000 | $10B |
| 6 | Avera Mckennan Hospital School Of Radiologic Technology | Sioux Falls | 5,000 | $10B |
| 7 | Black Hills Electric Co-op | Custer | 2,100 | $10B |
| 8 | Agsense | Huron | 50 | $10B |
| 9 | Scheels Sports | Rapid City | 22 | $10B |
| 10 | Pulizzi Engineering Inc. | Sioux Falls | 10 | $10B |
South Dakota companies by size and revenue
| Employees | Companies | Share |
|---|---|---|
| 1-50 | 115,263 | 98.1% |
| 51-200 | 1,636 | 1.4% |
| 201-1000 | 494 | 0.4% |
| 1001-5000 | 66 | 0.1% |
| 5001+ | 24 | 0.0% |
| Revenue | Companies | Share |
|---|---|---|
| Under $10M | 113,801 | 98.3% |
| $10M-$50M | 1,482 | 1.3% |
| $50M-$250M | 318 | 0.3% |
| $250M-$1B | 67 | 0.1% |
| $1B+ | 52 | 0.0% |
Share is of companies with a known value — 117,483 with headcount and 115,720 with revenue on file, as of Jul 17, 2026.
Frequently asked questions
How many companies are based in South Dakota?
118,727 companies in the directory are headquartered in South Dakota, browsable by city or by industry.
How many large companies are in South Dakota?
200 of the 118,727 companies in South Dakota employ more than 500 people, and 52 report over $1 billion in annual revenue. See the size and revenue breakdown above for the full distribution.
What size are most South Dakota companies?
Most are small and mid-sized businesses: the size and revenue tables above show the full spread, from under $10M up to $1B+, across the 115,720 companies with revenue on file.
What information is included for each company?
Every listing includes the company name, location, website, employee size, revenue range where available, and NAICS/SIC classification, with a link to the full profile.
Where does this directory come from?
Listings are compiled and maintained by Factur, a sales and marketing firm for B2B manufacturers. Any company can request an update or removal from its profile page.